IS 383-2016.pdf

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Coarse and Fine Aggregate for
Concrete — Specification
( Third Revision )
ICS 91.100.30
IS 383 : 2016
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Indian Standard
Price Group 8
January 2016
© BIS 2016
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MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI-110002
www.bis.org.in www.standardsbis.in
(Reaffirmed 0.0)
( Third Revision )
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Cement and Concrete Sectional Committee, CED 02
FOREWORD
This Indian Standard (Third Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by
the Cement and Concrete Sectional Committee had been approved by the Civil Engineering Division Council.
Aggregates are important components for making concrete and properties of concrete are substantially affected
by various characteristics of the aggregates used. Aggregates from natural sources form the major variety used for
making concrete, mortar and other applications. This Indian Standard has been formulated to cover requirements
for aggregates derived from natural sources and other than natural sources, for use in production of concrete.
Whilst the requirements specified in this standard generally meet the normal requirements for most of the concrete
works, there might be special cases where certain requirements other than those specified in the standard might
have to be specified; in such case, such special requirements, the tests required and the limits for such tests may be
specified by the purchaser.
This standard was first published in 1952 and subsequently revised in 1963 and 1970. This revision has been
taken up to incorporate the modifications found necessary in the light of experience gained in its use and also to
bring it in line with the latest development on the subject. Significant modifications in this revision include,
a) scope of the standard has been widened to cover aggregates from other than natural sources;
b) definitions of various terms have been rationalized;
c) limits for mica as deleterious material for muscovite and muscovite plus biotite varieties have been
included;
d) the requirements for crushing value, impact value and abrasion value have been classified under a common
head of mechanical properties;
e) requirement for flakiness and elongation has been specified for which a combined index has been
introduced along with the procedure for determination of the same;
f) provisions on alkali aggregate reactivity have been included to bring coherence of the same with
IS 456 : 2000 ‘Code of practice for plain and reinforced concrete (fourth revision)’ and requirements for
compliance for the same have been included; and
g) mixed sand has been included along with crushed sand.
Of late, scarcity in availability of aggregates from natural sources is being faced in some parts of the country. This
may require supplementing the use of aggregates from natural sources with the use of aggregates from other
sources. This revision therefore also covers provisions regarding quality requirements and those relating to the
extent of utilization of iron slag, steel slag, copper slag, bottom ash from thermal power plants recycled concrete
aggregates (RCA) and recycled aggregate (RA), along with necessary provisions relating to their utilization. RCA
and RA may in turn be sourced from construction and demolition wastes. A brief note on manufacture of various
types of such manufactured aggregates is given at Annex A. A crusher dust (or quarry dust) produced from the fine
screening of quarry crushing cannot be called crushed sand as per 3.1.2. It may not be generally in conformity to
the requirement of crushed sand as per the standard and is not expected to perform as efficiently as properly
crushed sand, unless it is processed to meet the requirement of this standard.
This standard contains clauses such as 8.1, 8.2, 8.3, 8.4, 9.1 and 9.2 which call for agreement between the purchaser
and the supplier and require the supplier to furnish technical information as given in Annex B.
The composition of the Committee responsible for the formulation of this standard is given in Annex F.
For the purpose of deciding whether a particular requirement of this standard is compiled with, the final value,
observed or calculated, expressing the result of a test or analysis shall be rounded off in accordance with IS 2 : 1960
‘Rules for rounding off numerical values (revised)’. The number of significant places retained in the rounded off
value should be the same as that specified value in this standard.
IS 456 : 2000 ‘Code of practice for plain and reinforced concrete (
head of mechanical properties;
b) definitions of various terms have been rationalized;
than natural sources, for use in production of concrete.
than natural sources, for use in production of concrete.
Aggregates are important components for making concrete and properties of concrete are substantially affected
by various characteristics of the aggregates used. Aggregates from natural sources form the major variety used for

1
IS 383 : 2016
Indian Standard
COARSE AND FINE AGGREGATE FOR
CONCRETE — SPECIFICATION
( Third Revision )
1 SCOPE
This standard covers the requirements for aggregates,
crushed or uncrushed, derived from natural sources,
such as river terraces and riverbeds, glacial deposits,
rocks, boulders and gravels, and manufactured
aggregates produced from other than natural sources,
for use in the production of concrete for normal
structural purposes including mass concrete works.
2 REFERENCES
The standards listed below contain provisions which,
through reference in this text, constitute provisions of
this standard. At the time of publication, the editions
indicated were valid. All standards are subject to
revision, and parties to agreements based on this
standard are encouraged to investigate the possibility
of applying the most recent editions of the standards
indicated below:
IS No. Title
2386 Methods of test for aggregates for
concrete:
(Part 1) : 1963 Particle size and shape
(Part 2) : 1963 Estimation of deleterious materials
and organic impurities
(Part 3) : 1963 Specific gravity, density, voids,
absorption and bulking
(Part 4) : 1963 Mechanical properties
(Part 5) : 1963 Soundness
(Part 6) : 1963 Measuring mortar making properties
of fine aggregate
(Part 7) : 1963 Alkali aggregate reactivity
(Part 8) : 1963 Petrographic examination
2430 : 1986 Methods for sampling of aggregates
for concrete (first revision)
4032 : 1985 Method of chemical analysis of
hydraulic cement (first revision)
4905 : 1968 Methods for random sampling
6461 (Part 1) : Glossary of terms relating to cement
1972 concrete: Part 1 Concrete aggregates
9198 : 1979 Specification for compaction rammer
for soil testing
9669 : 1980 Specification for CBR moulds and its
accessories
14959 (Part 2) : Method of Test determination of
2001 water soluble and acid soluble
chlorides in mortar and concrete:
Part 2 Hardened mortar and concrete
3 TERMINOLOGY
For the purpose of this standard, the definitions given
in IS 6461 (Part 1) and the following shall apply.
3.1 Fine Aggregate — Aggregate most of which passes
4.75 mm IS Sieve and contains only so much coarser
material as permitted in 6.3.
3.1.1 Natural Sand — Fine aggregate resulting from
the natural disintegration of rock and which has been
deposited by streams or glacial agencies. This may also
be called as uncrushed sand.
3.1.2 Crushed Sand
3.1.2.1 Crushed stone sand — Fine aggregate produced
by crushing hard stone.
3.1.2.2 Crushed gravel sand — Fine aggregate
produced by crushing natural gravel.
3.1.3 Mixed Sand — Fine aggregate produced by
blending natural sand and crushed stone sand or crushed
gravel sand in suitable proportions.
3.1.4 Manufactured Fine Aggregate (Manufactured
Sand) — Fine aggregate manufactured from other than
natural sources, by processing materials, using thermal
or other processes such as separation, washing, crushing
and scrubbing.
NOTE — Manufactured fine aggregate may be Recycled
Concrete Aggregate (RCA) (see Annex A).
3.2 Coarse Aggregate — Aggregate most of which is
retained on 4.75 mm IS Sieve and containing only so
much finer material as is permitted for the various types
described in this standard.
NOTE — Coarse aggregate may be,
a) uncrushed gravel or stone which results from natural
disintegration of rock;
b) crushed gravel or stone when it results from crushing of
gravel or hard stone; and
c) partially crushed gravel or stone when it is a product of the
blending of (a) and (b);
d) manufactured from other than natural sources, by
processing materials, using thermal or other processes such
as separation, washing, crushing and scrubbing.
Manufactured coarse aggregate may be Recycled Concrete
Aggregate (RCA) or Recycled Aggregate (RA) (see
Annex A).
of fine aggregate
of fine aggregate
(Part 5) : 1963 Soundness
Specific gravity, density, voids,
of applying the most recent editions of the standards
3.1.2
3.1.2
Natural Sand
3.1.1 Natural Sand
Natural Sand
material as permitted in
material as permitted in
of fine aggregate
of fine aggregate
of fine aggregate
3.1.2.2
3.1.2.2
3.1.2.2
3.1.2.2
3.1.2.1 Crushed stone sand
Crushed Sand
Natural Sand — Fine aggregate resulting from
Natural Sand — Fine aggregate resulting from
— Fine aggregate resulting from
material as permitted in 6.3
6.3
— Aggregate most of which passes
in IS 6461 (Part 1) and the following shall apply.

2
IS 383 : 2016
3.3 All-in-Aggregate — Material composed of fine
aggregate and coarse aggregate.
4 CLASSIFICATION
The aggregate shall be classified as given in 4.1 and 4.2.
In case of mixed sand (see 3.1.3), the manufacturer/
supplier should supply the individual sands to be mixed
at site, at the time of batching.
4.1 Aggregates from Natural Sources
These shall be coarse and fine aggregates as defined in
3.1.1, 3.1.2, 3.1.3 and 3.2 [see also Note under 3.2(a),
(b) and (c)]
4.2 Manufactured Aggregates and Extent of
Utilization
4.2.1 These shall be coarse and fine aggregates as
defined in 3.1.4 and 3.2 [see also Note under 3.2(d)].
The manufactured aggregates shall be permitted with
their extent of utilization as percent of total mass of
fine or coarse aggregate as the case may be, as indicated
in Table 1 against each, for use in plain and reinforced
concrete and lean concrete.
4.2.2 Manufactured aggregates shall not be permitted
for use in prestressed concrete.
5 QUALITY OF AGGREGATE
5.1 General
Aggregate shall be naturally occurring (crushed or
uncrushed) stones, gravel and sand or combination
thereof or produced from other than natural sources.
They shall be hard, strong, dense, durable, clear and
free from veins; and free from injurious amounts of
disintegrated pieces, alkali, free lime, vegetable matter
and other deleterious substances as well as adherent
coating. As far as possible, scoriaceous, flaky and
elongated pieces should be avoided.
5.2 Deleterious Materials
Aggregate shall not contain any harmful material, such
as pyrites, coal, lignite, mica, shale or similar laminated
material, clay, alkali, free lime, soft fragments, sea shells
and organic impurities in such quantity as to affect the
strength or durability of concrete. Aggregate to be used
for reinforced concrete shall not contain any material
liable to attack the steel reinforcement.
5.2.1 Limits of Deleterious Materials
The maximum quantity of deleterious materials shall
not exceed the limits specified in Table 2. However,
the engineer-in-charge at his discretion, may relax some
of the limits as a result of some further tests and
evidence of satisfactory performance of the aggregates.
Table 1 Extent of Utilization
(Clause 4.2.1)
Maximum Utilization
Sl No. Type of Aggregate
Plain Concrete
Percent
Reinforced Concrete
Percent
Lean Concrete
(Less than M15 Grade)
Percent
(1) (2) (3) (4) (5)
i) Coarse aggregate:
a) Iron slag aggregate 50 25 100
b) Steel slag aggregate 25 Nil 100
c) Recycled concrete aggregate1)
(RCA)
(See Note 1)
25 20 (Only upto M25
Grade)
100
d) Recycled aggregate1)
(RA) Nil Nil 100
e) Bottom ash from Thermal Power Plants Nil Nil 25
ii) Fine aggregate:
a) Iron slag aggregate 50 25 100
b) Steel slag aggregate 25 Nil 100
c) Copper slag aggregate 40 35 50
d) Recycled concrete aggregate1)
(RCA)
(See Note 1)
25 20 (Only upto M25
Grade)
100
1)
See A-3 for brief information on recycled aggregates (RA) and recycled concrete aggregates (RCA).
NOTES
1 It is desirable to source the recycled concrete aggregates from sites being redeveloped for use in the same site.
2 In any given structure, only one type of manufactured coarse aggregate and one type of manufactured fine aggregate shall be used.
3 The increase in density of concrete due to use of copper slag and steel slag aggregates need to be taken into consideration in the
design of structures.
4 While using manufactured aggregate as part replacement for natural aggregate, it should be ensured that the final grading meets the
requirements specified in Table 7, Table 8 and Table 9.
Recycled aggregate
ash
1)
aggregate
concrete
aggregate
concrete
aggregate
aggregate
aggregate
(2)
Manufactured aggregates shall not be permitted
fine or coarse aggregate as the case may be, as indicated
5.2.1
5.2.1
liable to attack the
(RA)
Power
aggregate1)
(RCA)
(RCA)
(Clause
Clause
Clause
maximum quantity of deleterious materials shall
Limits of Deleterious Materials

3
IS 383 : 2016
Table 2 Limits of Deleterious Materials
(Clause 5.2.1)
Sl
No.
Deleterious
Substance
Method of
Test, Ref to
Fine Aggregate
Percentage by
Mass, Max
Coarse Aggregate
Percentage by
Mass, Max
Uncrushed Crushed/
Mixed
Manufactured Uncrushed Crushed Manufacture
d
(1) (2) (3) (4) (5) (6) (7) (8) (9)
i) Coal and lignite IS 2386 (Part 2) 1.00 1.00 1.00 1.00 1.00 1.00
ii) Clay lumps IS 2386 (Part 2) 1.00 1.00 1.00 1.00 1.00 1.00
iii) Materials finer than
75 µm IS Sieve
IS 2386 (Part 1) 3.00 15.00 (for
crushed sand)
12.00 (for
mixed sand)
(see Note 1)
10.00 1.00 1.00 1.00
iv) Soft fragments IS 2386 (Part 2) — — — 3.00 — 3.00
v) Shale (see Note 2) 1.00 — 1.00 — — —
vi) Total of percentages
of all deleterious
materials (except
mica) including Sl
No. (i) to (v) for col
4, 7 and 8 and Sl No.
(i) and (ii) for col 5, 6
and 9
— 5.00 2.00 2.00 5.00 2.00 2.00
NOTES
1 The sands used for blending in mixed sand shall individually also satisfy the requirements of Table 2. The uncrushed sand used for
blending shall not have material finer than 75 µm more than 3.00 percent.
2 When the clay stones are harder, platy and fissile, they are known as shales. The presence and extent of shales shall be determined by
petrograpy at the time of selection and change of source.
3 The presence of mica in the fine aggregate has been found to affect adversely the workability, strength, abrasion resistance and
durability of concrete. Where no tests for strength and durability are conducted, the mica in the fine aggregate may be limited to 1.00
percent by mass. Where tests are conducted to ensure adequate workability, satisfactory strength, permeability and abrasion (for wearing
surfaces), the mica up to 3.00 percent by mass for muscovite type shall be permitted. In case of presence of both muscovite and biotite
mica, the permissible limit shall be 5.00 percent, maximum by mass. This is subject to total deleterious materials (including mica) being
limited to 8.00 percent by mass for col 4 and 5.00 percent for col 5.
Till a method is included in IS 2386 (Part 2), for determination of mica content, suitable methodology may be used for the same.
Normally, petrographic density separation and wind blowing methods can be used.
4 The aggregate shall not contain harmful organic impurities [tested in accordance with IS 2386 (Part 2)] in sufficient quantities to affect
adversely the strength or durability of concrete. A fine aggregate which fails in the testing of organic impurities may be used, provided
that, when tested for the effect of organic impurities on the strength of mortar, the relative strength at 7 and 28 days, reported in
accordance with IS 2386 (Part 6) is not less than 95 percent.
5.3 Combined Flakiness and Elongation Index
Flakiness and elongation shall be determined in
accordance with IS 2386 (Part 1) on the same sample.
After carrying out the flakiness index test, the flaky
material shall be removed from the sample and the
remaining portion shall be used for carrying out
elongation index. Indices so worked out shall be added
numerically to give combined flakiness and elongation
index. The combined flakiness and elongation index
so obtained shall not exceed 40 percent for uncrushed
or crushed aggregate. However, the engineer-in-charge
at his discretion may relax the limit keeping in view
the requirement, and availability of aggregates and
performance based on tests on concrete.
5.4 Mechanical Properties
5.4.1 Aggregate Crushing Value/Ten Percent Fines
Value
The aggregate crushing value/ten percent fines value,
when determined in accordance with IS 2386 (Part 4)
shall be as follows:
a) For aggregates to be : 30 percent, Max
used in concrete for
wearing surfaces,
(such as runways,
roads, pavements,
tunnel lining carrying
water, spillways and
stilling basins)
6) is
6)
durability
of organic
is not
of
is not
harmful
of concrete.
harmful
harmful
(Part 2),
and
5.00 percent
5.00
for muscovite
percent, maximum
and durability
ensure adequate
muscovite
been
durability
been
3.00
known
3.00 percent.
individually also
also
2.00
than
impurities
than 95 percent.
95
impurities
impurities
fine
impurities
blowing
impurities
determination
blowing
for col
determination
for col
by mass.
col
mass.
5.
by mass.
workability,
type shall
type shall
are
workability,
workability,
affect adversely
are conducted,
affect
shales.
shales.
shales. The
shales.
the requirements
5.00

4
IS 383 : 2016
b) For aggregates to be : In case the aggregate
used in concrete other crushing value
than for wearing exceeds 30 percent,
surfaces then the test for ‘ten
percent fines’ should
be conducted and
the minimum load
for the ten percent
finesshouldbe50kN
5.4.2 Aggregates Impact Value
As an alternative to 5.4.1, the aggregate impact value
may be determined in accordance with the method
specified in IS 2386 (Part 4). The aggregate impact
value shall not exceed the following values:
a) For aggregates to be used in : 30 percent
concrete for wearing surfaces,
(such as runways, roads, pave-
ments, tunnel lining carrying
water, spillways and stilling
basins)
b) For aggregates to be used in : 45 percent
concrete other than for
wearing surfaces
NOTE — For concrete of grades M 65 and above, stronger
aggregates are required and hence the maximum aggregate crushing
value and aggregate impact value shall not exceed 22 percent.
5.4.3 Aggregate Abrasion Value
The aggregate abrasion value, when determined in
accordance with IS 2386 (Part 4) using Los Angeles
machine, shall not exceed the following values:
(such as runways, roads,
pavements, spillways, tunnel
lining carrying water and
stilling basins)
wearing surfaces
5.5 Soundness of Aggregate
5.5.1 For concrete liable to be exposed to the action of
frost, the coarse and fine aggregates shall pass a sodium
or magnesium sulphate accelerated soundness test
specified in IS 2386 (Part 5), the limits being set by
agreement between the purchaser and the supplier.
NOTE — As a general guide, it may be taken that the average
loss of mass after 5 cycles shall not exceed the following:
a) For fine aggregate : 10 percent when tested with sodium
sulphate (Na2SO4), and
15 percent when testing with
magnesium sulphate (MgSO4)
b) For coarse aggregate : 12 percent when tested with sodium
sulphate (Na2SO4), and
18 percent when tested with
magnesium sulphate (MgSO4)
5.5.2 For slag aggregates, following additional tests
shall be carried out:
a) Iron unsoundness — When chemical analysis
of aggregates shows that the ferrous oxide
content is equal to or more than 3.0 percent,
and sulphur content is equal to or more than
1.0 percent, the aggregate shall be tested for
iron unsoundness. The iron unsoundness of
the slag aggregate when tested as per the
procedure given in Annex D, shall not exceed
1 percent.
b) Volumetric expansion ratio — It shall not be
more than 2.0 percent. The procedure shall
be as given in Annex E.
c) Unsoundness due to free lime — Prior to use
of iron slag (for production of aggregates) from
a new source or when significant changes in
furnace chemistry occur in an existing source
which may result in the presence of free lime,
the potential for pop-out formation shall be
assessed by determining the free-lime content
of the slag by petrographic examination or
quantitative x-ray diffractometry on a
representative sample.
If the number of particles containing free lime
exceeds 1 in 20, then weathering of the slag
stockpile (in moist condition or at/near
saturated surface dry condition) represented
by the test sample shall be continued until
further testing shows that the level has fallen
below 1 in 20.
5.6 Alkali Aggregate Reaction
Some aggregates containing particular varieties of silica
may be susceptible to attack by alkalies (Na2O and K2O)
originating from cement and other sources, producing
an expansive reaction which can cause cracking and
disruption of concrete. Damage to concrete from this
reaction will normally only occur when all the following
are present together:
a) A high moisture level within the concrete.
b) A cement with high alkali content, or another
source of alkali.
c) Aggregate containing an alkali reactive
constituent.
NOTE — The aggregates containing more than 20 percent
strained quartz and undulatory extinction angle greater than
15°, causing deleterious reaction and also possibly showing
presence of microcrystalline quartz is known as slowly reactive
aggregates.
wearing surfaces
stilling basins)
accordance with IS 2386 (Part 4) using L
accordance with IS 2386 (Part 4) using
L
aggregates are required and hence the maximum aggregate crushing
For concrete of grades M 65 and above, stronger
c)
Volumetric expansion ratio
os Angeles
os Angeles
os Angeles
os Angeles
the potential for pop-out formation shall be
Unsoundness due to free lime
the slag aggregate when tested as per the

5
IS 383 : 2016
Table 3 Additional Requirements for all
Manufactured Aggregates
(Clause 5.7)
Sl No.
(1)
Characteristic
(2)
Requirement
(3)
i) Total alkali content as Na2O
equivalent, percent, Max
0.3
ii) Total sulphate content as SO3,
percent, Max
0.5
iii) Acid soluble chloride content,
percent, Max
0.04
iv) Water absorption, percent,
Max
5
(see Note 1)
v) Specific gravity 2.1 to 3.2
(see Notes 2 and 3)
NOTES
1 For recycled concrete aggregate and recycled aggregate,
higher water absorption up to 10 percent may be permitted
subject to pre-wetting (saturation) of aggregates before
batching and mixing.
2 The limits are intended for use of aggregate in normal weight
concrete.
3 Copper slag having higher specific gravity (up to 3.8) shall be
permitted for part replacement of aggregates in accordance with
4.2.1, such that the average specific gravity of the fine
aggregate is not more than 3.2.
The aggregate shall comply with the requirements as
follows, when tested in accordance with IS 2386 (Part 7):
1) Chemicalmethod— Theaggregatewhentested
in accordance with the chemical method, shall
conform to the requirement as specified in IS
2386 (Part 7). If test results indicate deleterious
orpotentiallydeleteriouscharacter,theaggregate
should be tested using mortar bar method as
specified in IS 2386 (Part 7) to verify the
potential for expansion in concrete. This
chemicalmethod(fordeterminationofpotential
reactivity) however, is not found to be suitable
for slowly reactive aggregates or for aggregate
containingcarbonates (limestoneaggregates) or
magnesium silicates, such as antigorite
(serpentine). Therefore,petrographicanalysisof
aggregates shall be carried out to find out the
strainedquartzpercentage,undulatoryextinction
angle and its mineral composition before
conducting the test.
2) Mortar bar method
i) Using 38°C temperature regime — The
permissible limits for mortar bar expansion
at 38°C shall be 0.05 percent at 90 days
and 0.10 percent at 180 days. For slowly
reactive aggregates (as explained in NOTE
above) mortar bar method using
temperature regime of 38°C shall not be
used for determination of potential
reactivity. Such slowly reactive aggregates
shall be tested using 60°C temperature
regime. Therefore, petrographic analysis
of aggregates shall be carried out to find
out the strained quartz percentage,
undulatory extinction angle and its mineral
composition before conducting the test.
ii) Using 60°C temperature regime — The
permissible limit mortar bar expansion at
60°Cshall be 0.05 percent at 90 days and
0.06 percent at 180 days for slowly
reactive aggregates.
3) Accelerated mortar bar method — The
accelerated mortar bar test shall be carried out
at 80°C using 1N NaOH. The test is found to
be specially suitable for slowly reactive
aggregate. The criteria for this test is as under:
i) Expansions of less than 0.10 percent at
16 days after casting are indicative of
innocuous behavior in most cases (see
Note).
NOTE — Some granitic gneisses and metabasalts
have been found to be deleteriously expansive in
field performance even though their expansion in
this test was less than 0.10 percent at 16 days after
casting. With such aggregate, it is recommended
that prior field performance be investigated. In the
absence of field performance data, mitigative
measures should be taken.
ii) Expansions of more than 0.20 percent at
16 days after casting are indicative of
potentially deleterious expansion
[see 4.2.2 of IS 2386 (Part 7)].
iii) Expansions between 0.10 and 0.20 percent
at 16 days after casting include both
aggregate that are known to be innocuous
and deleterious in field performance. For
these aggregate, it is particularly important
to develop supplemental information as
described in 4.2.2 of IS 2386 (Part 7). In
such a situation, it may also be useful to
take comparator reading until 28 days. It
may be useful to support this test with test
by mortar bar method at 38°C and 60°C,
as applicable.
In few locations in the country, dolomitic and limestone
aggregates are encountered. In such cases, concrete
prism test shall be preferred over mortar bar test. The
test should cover the determination by measurement
of length change of concrete prisms, the susceptibility
of cement-aggregate combinations to expansive alkali-
carbonate reaction involving hydroxide ions associated
with alkalis (sodium and potassium) and certain calcitic
dolomites and dolomitic limestones. Till this test is
included in IS 2386 (Part 7), specialist literature may
be referred for the test and applicable requirement.
5.7 Manufactured aggregates shall meet the additional
requirements as given in Table 3, Table 4, Table 5 and
Table 6.
shall be 0.05 percent at 90 days and
°C temperature regime
shall not be
reactive aggregates (as explained in NOTE
shall be 0.05 percent at 90 days
and 0.10 percent at 180 days. For slowly
shall be 0.05 percent at 90 days
— The
— The
temperature regime
temperature regime
as applicable.
as applicable.
4.2.2 of IS 2386 (Part 7). In

6
IS 383 : 2016
Table 4 Additional Requirements for Iron and Steel
Slag Aggregates
(Clause 5.7)
Sl No.
(1)
Characteristic
(2)
Requirement
(3)
i) Calcium oxide as CaO, percent, Max 45.0
ii) Total sulphur as S, percent, Max 2.0
iii) Total iron as FeO, percent, Max 3.0
NOTE — Stockpiling of slag aggregate: Crushed slag aggregate
should be stockpiled in moist condition at or near the saturated
surface dry (SSD) condition before use, with the moisture
condition being maintained by sprinkling with water.
Table 5 Additional Requirements for Electric
Furnace Oxidation Slag Coarse Aggregate
(Clause 5.7)
Sl No.
(1)
Characteristic
(2)
Requirement
(3)
i) Calcium oxide as CaO, percent, Max 40
ii) Magnesium oxide as MgO, percent, Max 10
iii) Total iron as FeO, percent, Max 50
iv) Basicity as CaO/SiO2, percent, Max 2
Table 6 Additional Requirements for Copper Slag
Aggregate
(Clause 5.7)
Sl No.
(1)
Characteristic
(2)
Requirement
(3)
i) Calcium oxide as CaO , percent, Max 12.0
ii) Total sulphur as S, percent, Max 2.0
iii) Total iron as FeO, percent, Max 70
iv) Chlorine as NaCl, percent, Max 0.03
6 SIZE AND GRADING OF AGGREGATES
6.1 Single-Sized Coarse Aggregates
Coarse aggregates shall be supplied in the nominal sizes
given in Table 7. For any one of the nominal sizes, the
proportion of other sizes, as determined by the method
described in IS 2386 (Part 1) shall also be in accordance
with Table 7.
6.1.1 Coarse Aggregate for Mass Concrete
Coarse aggregate for mass concrete works shall be in
the sizes specified in Table 8.
6.2 Graded Coarse Aggregates
Graded coarse aggregates may be supplied in the
nominal sizes given in Table 7.
6.3 Fine Aggregate
The grading of fine aggregate, when determined as
described in IS 2386 (Part 1) shall be within the limits
given in Table 9 and shall be described as fine
aggregate, Grading Zones I, II, III and IV. Where the
grading falls outside the limits of any particular grading
zone of sieves other than 600 µm IS Sieve by an amount
not exceeding 5 percent for a particular sieve size,
(subject to a cumulative amount of 10 percent), it shall
be regarded as falling within that grading zone. This
tolerance shall not be applied to percentage passing
the 600 µm IS Sieve or to percentage passing any other
sieve size on the coarse limit of Grading Zone I or the
finer limit of Grading Zone IV.
6.4 All-in-Aggregate
If combined aggregates are available they need not be
separated into fine and coarse. The grading of the all-
in-aggregate, when analyzed, as described in IS 2386
(Part 1) shall be in accordance with Table 10. Necessary
adjustments may be made in the grading by the addition
of single-sized aggregates
7 SAMPLING AND TESTING
7.1 Sampling
The method of sampling shall be in accordance with
Table 7 Coarse Aggregates
(Clauses 6.1 and 6.2)
Percentage Passing for Single-Sized
Aggregate of Nominal Size
Percentage Passing for Graded
Aggregate of Nominal Size
Sl
No.
IS Sieve
Designation
63 mm 40 mm 20 mm 16 mm 12.5 mm 10 mm 40 mm 20 mm 16 mm 12.5 mm
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12)
i) 80 mm 100 - - - - - 100 - - -
ii) 63 mm 85 to 100 100 - - - - - - - -
iii) 40 mm 0 to 30 85 to 100 100 - - - 90 to 100 100 - -
iv) 20 mm 0 to 5 0 to 20 85 to 100 100 - - 30 to 70 90 to 100 100 100
v) 16 mm - - - 85 to 100 100 - - - 90 to 100 -
vi) 12.5 mm - - - - 85 to 100 100 - - - 90 to 100
vii) 10 mm 0 to 5 0 to 5 0 to 20 0 to 30 0 to 45 85 to 100 10 to 35 25 to 55 30 to 70 40 to 85
viii) 4.75 mm - - 0 to 5 0 to 5 0 to 10 0 to 20 0 to 5 0 to 10 0 to 10 0 to 10
ix) 2.36 mm - - - - - 0 to 5 - - - -
Single-Sized Coarse Aggregates
Requirement
(3)
Requirement
Requirement
er Slag
zone of sieves other than 600
0.03
the 600 µm IS Sieve or to percentage passing any other
grading of fine aggregate, when determined as

7
IS 383 : 2016
7.2.1 In the case of all-in-aggregate, for the purpose of
tests to verify its compliance with the requirements
given in Table 2, and when necessary for such other
tests as required by the purchaser, the aggregate shall
be first separated into two fractions, one finer than
4.75 mm IS Sieve and the other coarser than 4.75 mm
IS Sieve, and the appropriate tests shall be made on
samples from each component, the former being tested
as fine aggregate and the latter as coarse aggregate.
Table 10 All-in-Aggregate Grading
(Clause 6.4)
Percentage Passing for
All-in-Aggregate of
Sl
No.
IS Sieve
Designation
40 mm Nominal Size 20 mm Nominal Size
(1) (2) (3) (4)
i) 80 mm 100 —
ii) 40 mm 95 to 100 100
iii) 20 mm 45 to 75 95 to 100
iv) 4.75 mm 25 to 45 30 to 50
v) 600 µm 8 to 30 10 to 35
vi) 150 µm 0 to 6 0 to 6
8 SUPPLIER’S CERTIFICATE AND COST OF
TESTS
8.1 The supplier shall satisfy himself that the material
complies with the requirements of this standard and, if
requested, shall supply a certificate to this effect to the
purchaser.
8.2 If the purchaser requires independent tests to be
made, the sample for such tests shall be taken before
or immediately after delivery according to the option
of the purchaser, and the tests carried out in accordance
with this standard and on the written instructions of the
purchaser.
8.3 The supplier shall supply free of charge, the material
required for tests.
8.4 The cost of the tests carried out under 8.2 shall be
borne by,
a) the supplier, if the results show that the
material does not comply with this standard;
and
b) the purchaser, if the results show that the
material complies with this standard.
9 DELIVERY
9.1 Supplies of aggregate may be made in bulk in
suitable quantities mutually agreed upon between the
purchaser and the supplier. Where so required by the
purchaser, the aggregate may be supplied in bags (jute,
jute-laminated, polyethylene lined or as may be
mutually agreed between the purchaser and the supplier)
bearing the net quantity (may be 25 kg, 50 kg, 300 kg,
Table 9 Fine Aggregates
(Clause 6.3)
Percentage Passing
Sl
No.
IS Sieve
Designation
Grading
Zone I
Grading
Zone II
Grading
Zone III
Grading
Zone IV
(1) (2) (3) (4) (5) (6)
i) 10 mm 100 100 100 100
ii) 4.75 mm 90-100 90-100 90-100 95-100
iii) 2.36 mm 60-95 75-100 85-100 95-100
iv) 1.18 mm 30-70 55-90 75-100 90-100
v) 600 µm 15-34 35-59 60-79 80-100
vi) 300 µm 5-20 8-30 12-40 15-50
vii) 150 µm 0-10 0-10 0-10 0-15
NOTES
1 For crushed stone sands, the permissible limit on 150 µm
IS Sieve is increased to 20 percent. This does not affect the
5 percent allowance permitted in 6.3 applying to other sieve sizes.
2 Fine aggregate complying with the requirements of any grading
zone in this table is suitable for concrete but the quality of
concrete produced will depend upon a number of factors
including proportions.
3 As the fine aggregate grading becomes progressively finer, that
is, from Grading Zones I to IV, the ratio of fine aggregate to
coarse aggregate should be progressively reduced. The most
suitable fine to coarse ratio to be used for any particular mix will,
however, depend upon the actual grading, particle shape and
surface texture of both fine and coarse aggregates.
4 It is recommended that fine aggregate conforming to Grading
Zone IV should not be used in reinforced concrete unless tests
have been made to ascertain the suitability of proposed mix
proportions.
Table 8 Sizes of Coarse Aggregates for Mass
Concrete
(Clause 6.1.1)
Sl
No.
Class and Size IS Sieve
Designation
Percentage
Passing
(1) (2) (3) (4)
i) Very large, 150 to 80
mm
160 mm
80 mm
90 to 100
0 to 10
ii) Large, 80 to 40 mm 80 mm
40 mm
90 to 100
0 to 10
iii) Medium, 40 to 20 mm 40 mm
20 mm
90 to 100
0 to 10
iv) Small, 20 to 4.75 mm 20 mm
4.75 mm
2.36 mm
90 to 100
0 to 10
0 to 0.2
IS 2430. The amount of material required for each test
shall be as specified in the relevant method of test given
in IS 2386 (Part 1) to IS 2386 (Part 8).
7.2 Chemical tests like alkalies (Na2O equivalent),
sulphate (SO3), calcium oxide, sulphur (S), iron (FeO),
magnesium oxide (MgO), silica (SiO2) and chlorine
(NaCl), can be carried out as per IS 4032 and water
soluble chloride test can be carried out as per IS 14959
(Part 2). All other tests shall be carried out as described
in IS 2386 (Part 1) to IS 2386 (Part 8) and in this
standard.
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8.1 The supplier shall satisfy himself that the material
TESTS
The supplier shall satisfy himself that the material
TESTS
TESTS
8 SUPPLIER’S CERTIFICATE AND COST OF
µm
µm
µm
µm
µm
(3)
(3)
(3)
Nominal
All-in-Aggregate of
All-in-Aggregate of
Percentage Passing for
All-in-Aggregate of

8
IS 383 : 2016
600 kg or as agreed to between the purchaser and the
supplier). The tolerance on the quantity of aggregate
in each bag or consignment shall be as per 9.2 unless
mutually agreed upon between the purchaser and the
supplier.
9.2 Tolerance Requirements for the Quantity of
Aggregate Packed in Bags
9.2.1 The average of net quantity of aggregate packed
in bags at the plant in a sample shall be equal to or
more than 25 kg, 50 kg, 300 kg, 600 kg, etc, as
applicable. The number of bags in a sample shall be as
given below:
Batch Size Sample Size
100 to 150 20
151 to 280 32
281 to 500 50
501 to 1 200 80
1 201 to 3 200 125
3 201 and over 200
The bags in a sample shall be selected at random (see
IS 4905).
9.2.2 The number of bags in a sample showing a minus
error greater than 2 percent of the specified net quantity
shall be not more than 5 percent of the bags in the
sample. Also the minus error in none of such bags in
the sample shall exceed 4 percent of the specified net
quantity of aggregate in the bag.
9.2.3 In case of a wagon or truck load of 5 to 25 t, the
overall tolerance on net quantity of aggregate shall be
0 to + 0.5 percent.
10 MARKING
10.1 Each consignment/bag of aggregate shall be
legibly and indelibly marked with the following
information:
a) Manufacturer’s name and his registered trade-
mark, if any;
b) Net quantity, in kg;
c) Words ‘Use no Hooks’ on the bags;
d) Batch/control unit number;
e) Address of the manufacturer;
f) Month and year of consignment/packing;
g) Type of aggregate, such as ‘Coarse Aggregate’
or ‘Fine Aggregate’;
h) In case the aggregates are from natural
sources, the words ‘Natural Aggregate’;
j) In case of aggregates from other than natural
sources, the type of coarse/fine aggregate (see
Table 1);
k) In case of coarse aggregate, the nominal size
along with the words, ‘Single Sized’ or
‘Graded’, as the case may be; and
m) In case of fine aggregate, the grading zone.
10.2 Similar information shall be provided in the
delivery advices accompanying the shipment of
aggregate in bulk (see 10.3).
10.3 BIS Certification Marking
The aggregate may also be marked with the Standard
Mark.
10.3.1 The use of the Standard Mark is governed by
the provisions of the Bureau of Indian Standards Act,
1986 and the Rules and Regulations made thereunder.
The details of conditions under which a license for the
use of the Standard Mark may be granted to
manufacturers or producers may be obtained from the
Bureau of Indian Standards.
Each consignment/bag of aggregate shall be
In case of a wagon or truck load of 5 to 25 t, the
sample. Also the minus error in none of such bags in
The number of bags in a sample showing a minus
The number of bags in a sample showing a minus
see
sources, the type of coarse/fine aggregate (
Table 1);
Table 1);
The aggregate may also be marked with the Standard
aggregate in bulk (
aggregate in bulk (
aggregate in bulk (
aggregate in bulk (
Similar information shall be provided in the
Similar information shall be provided in the
h) In case the aggregates are from natural

9
IS 383 : 2016
A-1 IRON AND STEEL SLAG AGGREGATES
A-1.1 Iron Slag Aggregate
A-1.1.1 Iron slag is obtained as a byproduct, while
producing iron in blast furnaces or basic oxygen
furnaces in integrated iron and steel plants. The lime
in the flux chemically combines with the aluminates
and silicates of the iron ore and coke ash to form a
non-metallic product called iron/blast furnace slag. The
molten slag at a temperature of approximately 1 500°C
is taken out of the furnace and cooled to form different
types of slag products.
A-1.1.2 Air Cooled Iron Slag Aggregate
Molten slag is allowed to flow from the furnace into
open pits located beside the furnaces where the material
is quenched with water to facilitate cooling and
crystallization. The slag after cooling can be further
crushed and screened to produce different sizes of
aggregates. During its usage, care should be taken to
ensure that the slag passes the test for ‘iron
unsoundness’ and is pre-wetted prior to its use. Figure
1 shows typical air-cooled iron slag aggregate.
FIG. 1 AIR COOLED IRON SLAG AGGREGATE
A-1.1.3 Granulated Iron Slag Aggregate
In this case, molten slag is allowed to flow through
the launders into a granulation plant, where molten
slag is quenched rapidly with large volume of water.
This results in vitrified (glassy) material with a sand-
like appearance, with particles typically 1 mm to 5
mm size. It is a light weight aggregate, which needs
further processing to improve the bulk density to
more than 1.35 kg/l for its use as normal weight
aggregate. Figure 2 shows typical granulated iron
slag aggregate.
ANNEX A
( Foreword )
BRIEF INFORMATION ON AGGREGATES FROM OTHER THAN NATURAL SOURCES
FIG. 2 GRANULATED IRON SLAG AGGREGATE
A-1.2 Steel Slag Aggregate
Steel slag is a byproduct produced in steel making
operations in integrated iron and steel plants. The
calcined lime used as flux combines with the silicates,
aluminum oxides, magnesium oxides, manganese
oxides and ferrites to form steel furnace slag, commonly
called steel slag. Slag is poured in a cooling yard from
the furnace at a temperature of 1 400 °C - 1 700 °C and
cooled by air and sprinkling of water. Steelmaking slag
contains about 10 to 20 metallic iron percent by mass,
and is recovered by magnetic separation. The metal
free slag is crushed and screened to different sizes for
use as aggregates. For use as aggregates, the steel slag
is subjected to weathering process (natural or
accelerated) to reduce the free lime content in the slag.
Figure 3 shows typical steel slag aggregate.
NOTE — Air Cooled Blast furnace Slag (ACBFS) has unique
chemical and physical properties that influence its behaviour
as an aggregate in concrete. Several of the key chemical
properties are provided but the physical property of greatest
concern is the high level of porosity compared to that present
in naturally derived aggregates, which contributes to high
absorption capacities. This is important during construction,
as the moisture condition of the aggregate will impact
workability and early-age, shrinkage-related cracking, if the
aggregate is not kept sufficiently moist prior to batching. It
may also have long-term ramifications on in service durability,
depending on the level of saturation those aggregates are
subjected to either at the bottom of the slabs or in the vicinity
of joints and cracks.
FIG. 3 STEEL SLAG AGGREGATE
C
COO
IR C
1 shows typical air-cooled iron slag aggregate.
ensure that the slag passes the test for ‘iron
aggregates. During its usage, care should be taken to
RON S
SLAG
L
is subjected to weathering process (natural or
cooled by air and sprinkling of water. Steelmaking slag
RON SL

10
IS 383 : 2016
A-2 COPPER SLAG AS AGGREGATES
Copper slag is produced as a byproduct from copper
smelter, while producing copper from copper concentrate
(copper pyrite) through pyrometallurgical process. In the
process of smelting, the iron present in the copper
concentrate combines chemically at 1 200°C with silica
present in flux materials such as river sand/silica sand/
quartz fines to form iron silicate, which is termed as
copper slag. The copper slag thus generated is quenched
with water to produce granulated copper slag.
Copper slag is a blackish granular material, similar to
medium to coarse sand having size ranging from
150 µm to 4.75 mm. This aggregate has potential for
use as fine aggregate in accordance with provisions of
this standard (see Fig. 4).
FIG. 4 TYPICAL COPPER SLAG AGGREGATE
A-3 CONSTRUCTION AND DEMOLITION
(C&D) WASTE
Use of construction and demolition (C&D) waste for
manufacture of aggregates is a step towards effective
management and utilization of this waste. This however,
requires necessary care while producing aggregates to
ensure their efficacy in their use as part of concrete.
These aggregates may be of two types namely Recycled
Aggregate (RA) and Recycled Concrete Aggregate
(RCA). RA is made from C&D waste which may
comprise concrete, brick, tiles, stone, etc, and RCA is
derived from concrete after requisite processing.
Recycled concrete aggregate (RCA) contain not only
the original aggregate, but also hydrated cement paste
adhering to its surface. This paste reduces the specific
gravity and increases the porosity compared to similar
virgin aggregates. Higher porosity of RCA leads to a
higher absorption. Recycled aggregate (RA) will
typically have higher absorption and lower specific
gravity than natural aggregate. The concrete rubble has
to be properly processed, including scrubbing to remove
the adhered hydrated cement as much as possible.
The broad steps involved in the manufacture of
aggregates from C&D waste may be:
a) Receipt and inspection of C&D waste at the
plant.
b) Weighing of waste.
c) Mechanical and manual segregation and
resizing - this may involve segregation of
various types of wastes such as bricks, stones,
concrete, steel, tiles, etc.
d) Dry and wet processing.
Figure 5, Figure 6A and Figure 6B show typical C&D
waste, recycled concrete aggregate and recycled
aggregate obtained there from.
RA can be used as coarse aggregate and RCA can be
used as coarse and fine aggregates in accordance with
this standard.
A-4 ENVIRONMENTAL SAFETY AND QUALITY
STANDARDS USING IRON AND STEEL AND
COPPER SLAG AGGREGATES
The engineer-in-charge may get the iron and steel and
copper slag aggregates checked for hazardous
substances, at appropriate frequency. Specialist
literature may be referred for the test method, the
technique commonly in use are Inductively Coupled
Plasma (ICP) spectroscopy and Atomic Absorption
Spectrophotometer (AAS). As a guide the values given
in Table 11 may be followed as the permissible values.
FIG. 5. DEMOLITION WASTE BEFORE PROCESSING
6A RCA 6B RA
FIG. 6 RECYCLED CONCRETE AGGREGATE AFTER
PROCESSING AND RECYCLED AGGREGATE AFTER PROCESSING
Table 11 Environmental Safety and Quality
Standards Using Iron and Steel and Copper
Slag Aggregates
(Clause A-4)
Sl No.
(1)
Item
(2)
Elution
volume, Max
mg/kg
(3)
Content, Max,
mg/l
(4)
i) Cadmium 0.01 150
ii) Lead 0.01 150
iii) Hexavalent chromium 0.05 250
iv) Arsenic 0.01 150
v) Mercury 0.000 5 15
vi) Selenium 0.01 150
vii) Fluorine 0.8 4 000
viii) Boron 1 4 000
comprise concrete, brick, tiles,
comprise concrete, brick, tiles,
se of construction and demolition (C&D) waste for
stone, etc, and RCA is
stone, etc, and RCA is
in Table 11 may be followed as the permissible values.
A-4 ENVIRONMENTAL SAFETY AND QUALITY

11
IS 383 : 2016
ANNEX B
( Foreword )
INFORMATION TO BE FURNISHED BY THE SUPPLIER
B-1 DETAILS OF INFORMATION
When requested by the purchaser or his representative,
the supplier shall provide the following particulars:
a) Source of supply, that is, precise location of
source from where the materials were
obtained;
b) Trade group of principal rock type present, in
case of aggregates from natural sources
(see Annex C);
c) Physical characteristics, in case of aggregates
from natural sources (see Annex C);
d) In case of manufactured aggregates, the brief
manufacturing process, source of parent
material and special characteristics having
bearing on concrete properties, such as
presence of adhered coating in case of
recycled concrete aggregate, to the extent
possible.
e) Presence of reactive minerals;
f) Service history, if any and in particular, in case
of manufactured aggregates, the name of
projects where used and the performance
including in recently completed projects; and
g) In case of manufactured aggregates, special
precautions, if any, to be observed during
concrete production.
C-1 GENERAL HEADINGS
To enable detailed reports on aggregate, the
petrographic examination as per IS 2386 (Part 8) may
be carried out and information in the following general
headings may be given, are suggested as a guide:
a) Trade group — For example, granite,
limestone and sandstone (see C-2.2);
b) Petrological name and description — The
correct petrological name should be used and
should be accompanied by a brief description
of such properties as hardness, colour, grain,
imperfections, etc;
c) Description of the bulk — The degree of
cleanliness, that is, freedom from dust, should
be stated and reference made to the presence
of any pieces not representative of the bulk;
d) Particle shapes — See C-3; and
e) Surface texture — See C-3.
ANNEX C
( Clause B-1.1)
DESCRIPTION AND PHYSICAL CHARACTERISTICS OF AGGREGATES FROM NATURAL
SOURCES, FOR CONCRETE
C-2 NOMENCLATURE OF ROCK
C-2.1 The technical nomenclature of rocks is an
extensive one and for practical purposes it is sufficient
to group together with those rocks having certain
petrological characteristics in common. Accordingly,
the list of trade groups given in C-2.2 is adopted for
the convenience of producers and users of aggregates.
C-2.2 Trade Groups of Rocks Used as Concrete
Aggregate
The list of rocks placed under appropriate trade groups
is given below:
a) IGNEOUS ROCKS
1) Granite Group
Granite Granodiorite
Gmnophyre Diorite
Syenite
Trade group
For example, granite,
Clause
Clause
Clause
Clause
ANNEX C
ANNEX C
f) Service history, if any and in particular, in case
of manufactured aggregates, the name of

12
IS 383 : 2016
2) Gabbro Group
Gabbro Peridotite
Norite Pyroxenite
Anorthosite Epidiorite
3) Aplite Group
Aplite Quartz reef
Porphyry
4) Dolerite Group
Dolerite Lamprophyre
5) Rhyolite Group
Rhyolite Felsite
Trachyte Pumicite
6) Basalt Group
Andesite Basalt
b) SEDIMENTARY ROCKS
1) Sandstone Group
Sandstone Arkose
Quartzite Graywacke
Grit
2) Limestone Group
Limestone Dolomite
c) METAMORPHIC ROCKS
1) Granulite and Gneiss Groups
Granite gneiss Amphibolite
Composite gneiss Granulite
2) Schist Group
Slate Phyllite
Schist
3) Marble Group
Marble Crystalline limestone
The correct identification of a rock and its placing under
the appropriate trade group shall be left to the decision
of the Geological Survey of India or any competent
geologist.
C-3 PARTICLE SHAPE AND SURFACE
TEXTURE
C-3.1 The external characteristics of any mixture of
mineral aggregate include a wide variety of physical
shape, colour and surface condition. In order to avoid
lengthy descriptions, it may be convenient to apply to
distinctive group types of aggregates some general term
which could be adopted.
C-3.2 The simple system shown in Table 12 and
Table 13 has, therefore, been devised for facilitate
defining the essential features of both particle shape
and surface characteristics.
Table 12 Particle Shape
(Clause C-3.2)
Sl
No.
Classification Description Illustrations of
Characteristic
Specimens
Example
(1) (2) (3) (4) (5)
i) Rounded Fully water
worn or
completely
shaped by
attrition
Fig. 7 River or
seashore
gravels;
desert,
seashore
and
windblown
sands
ii) Irregular or
partly rounded
Naturally
irregular, or
partly
shaped by
attrition,
and having
rounded
edges
Fig. 8 Pit sands
and
gravels;
land or dug
flints;
cuboid
rock
iii) Angular Possessing
well-defined
edges
formed at
the inter-
section of
roughly
planar faces
Fig. 9 Crushed
rocks of all
types;
talus;
screes
iv) Flaky Material,
usually
angular, of
which the
thickness is
small
relative to
the width
and/or
length
Fig. 10 Laminated
rocks
FIG. 7 PARTICLE SHAPE - ROUNDED
FIG. 8 PARTICLE SHAPE - IRREGULAR
Marble Group
Marble Group
Marble Group
Slate Phyllite
Schist
Slate Phyllite
Slate Phyllite
Composite gneiss Granulite
Granite gneiss Amphibolite
iv)
i
ro
edges
a
and ha
ounded
and
ttritio
ha
shaped by
ition,
shaped
ition,
att
by
rregular, o
or
or

13
IS 383 : 2016
FIG. 9 PARTICLE SHAPE - ANGULAR
FIG. 10 PARTICLE SHAPE - FLAKY
but is based upon a visual examination of hand
specimens. With certain materials, however, it may be
necessary to use a combined description with more than
one group number for an adequate description of the
surface texture, for example, crushed gravel 1 and 2;
oolites 3 and 5.
Table 13 Surface Characteristics of Aggregates
(Clause C-3.2)
Sl
No.
Group Surface
Texture
Example
(1) (2) (3) (4)
i) 1 Glassy Black flint
ii) 2 Smooth Chert, slate, marble, some rhyolite
iii) 3 Granular Sandstone, oolites
iv) 4 Crystalline a) Fine — Basalt, trachyte,
keratophyre
b) Medium — Dolerite,
granophyre, granulite,
microgranite, some
limestones, many dolomites
c) Coarse — Gabbro, gneiss,
granite, granodiorite, syenite
v) 5 Honey - combed
and porous
Scoriae, pumice, trass
ANNEX D
[Clause 5.5.2 (a)]
DETERMINATION OF IRON UNSOUNDNESS FOR SLAG AGGREGATES
D-1 Some slags containing more than 3 percent ferrous
oxide (FeO) will disintegrate on immersion in water
when the sulphur (S) content of the slag is 1 percent or
more. Aggregates derived from such slags show iron
unsoundness.
D-2 PROCEDURE
Take randomly two test samples of not less than 50
pieces each of aggregate passing 40 mm and retained
on 20 mm IS sieve. Immerse the pieces of first sample
in distilled or deionized water at room temperature for
a period of 14 days. Remove the pieces from the water
at the end of the 14 day period and examine them.
D-3 CRITERIA FOR CONFORMITY
If no piece develops the following unsoundness during
the storage period, the slag aggregate shall be deemed
to be free from iron unsoundness:
a) Cracking (development of a visible crack),
b) Disintegration (physical breakdown of
aggregate particle),
c) Shaling (development of fretting or cleavage
of the aggregate particle), or
d) Craze cracking at the surface of the aggregate.
The second test sample shall be tested, if any of the
pieces (in the above sample) shows cracking,
disintegration, shaling or craze cracking at the surface
of the aggregate. If not more than one in one hundred
pieces (1 percent) of the two test samples tested shows
cracking, disintegration, shaling or craze cracking at
the surface of the aggregate, the slag shall be regarded
as free from iron unsoundness.
C-3.3 Surface characteristics have been classified under
five groups in Table 13. The grouping is broad; it does
not purport to be a precise petrographical classification
Some slags containing more than 3 percent ferrous
not purport to be a precise petrographical classification
Surface characteristics have been classified under
Surface characteristics have been classified under
4
4
S
Granular
Granular
[Clause
ANNEX D
ANNEX D
ANNEX D
5
ne
ne
Black
Cher
Black
Black

14
IS 383 : 2016
E-1 This test specifies the procedure to calculate the
volumetric expansion ratio for the evaluation of the
potential expansion of aggregates like steel slag due to
hydration reactions. This method can also be used to
evaluate the effectiveness of weathering processes for
reducing the expansive potential of such aggregate
materials.
E-2 APPARATUS AND TOOLS
a) Moulds with base plate, stay rod and wing
nut, perforated plate — These shall conform
to 4.1, 4.3 and 4.4 of IS 9669.
b) Metal Rammer — As specified in 5.1 of
IS 9198.
c) Curing apparatus — The curing apparatus
shall be a thermostat water tank, capable of
holding not less than two 15 cm moulds, and
able to keep the water temperature at 80 ± 3°C
for 6 h.
d) Sieves — These shall be 31.5 mm, 26.5 mm,
13.2 mm, 4.75 mm, 2.36 mm, 500 µm and
75 µm IS sieves.
e) Expansion measuring apparatus — The
expansion measuring apparatus shall be as
shown in Fig. 11.
E-3 SAMPLE
E-3.1 Preparation of Sample
The samples of slag shall be collected so as to represent
the whole lot. The samples shall be prepared to meet
the grading requirement given in Table 14.
Table 14 Grading Distribution
(Clause E-3.1)
Sl No.
(1)
Sieve Size
(2)
Percentage Passing
(3)
i) 31.5 mm 100
ii) 26.5 mm 97.5
iii) 13.2 mm 70
iv) 4.75 mm 47.3
v) 2.36 mm 35
vi) 500 µm 20
vii) 75 µm 6
E-3.2 Adjustment of Sample
The adjustment of sample shall be as follows:
a) Add water to approximately 30 kg of sample
ANNEX E
[Clause 5.5.2 (b)]
DETERMINATION OF VOLUMETRIC EXPANSION RATIO OF SLAG AGGREGATES
so that the difference between the moisture
content and the optimum moisture content is
within 1 percent. Mix it well to make moisture
content uniform, and keep it for not less than
24 h.
b) Reduce the above sample and obtain the
sample necessary for making three specimens.
E-4 TEST PROCEDURE
E-4.1 Specimen Preparation
The specimens shall be prepared as follows:
a) Attach collar and perforated base plate to the
mould, put spacer disc in it, and spread a filter
paper on it.
b) The measurement of moisture content shall
be conducted on two samples, each sample
weighing not less than 500 g. When the
measured value of moisture content differs
from the value of optimum moisture ratio by
not less than 1 percent, new specimens shall
be prepared for curing.
c) Pour the samples prepared as in E-3.2, in the
mould with a scoop keeping a falling height
of approximately 50 mm and ram the sample
into three layers one upon another so that the
depth of each layer after ramming is nearly
equal to one another.
d) Ram the layer uniformly by free dropping of
the rammer 92 times from a height of 450 mm
above each rammed surface. The ramming
shall be performed on a rigid and flat
foundation such as a concrete floor.
e) Rammed surfaces shall be scratched slightly
with a sharp ended steel bar for securing
adhesion between layers.
f) After finishing the ramming, remove the
collar, shave out the excess sample stuck on
upper part of the mould with a straight knife
carefully. At this time, holes on the surface
due to the removing of coarse grade materials
shall be filled with fine grade materials, and
the top surface shall be reformed
g) Turn the mould upside down gently pushing
the reformed top surface with a lid so that the
specimen in the mould does not decay or drop
down, then remove the perforated base plate
and take out the spacer-disc.
h) Spread a filter paper on the perforated base
Sie
(Clause
le
Expansion measuring apparatus — The
µm and
— These shall be 31.5 mm, 26.5 mm,
able to keep the water temperature at 80 ± 3°C
holding not less than two 15 cm moulds, and
ecimen Pre
E-3.1)
E-3.1)
E-3.1)
weighing not less than 500 g. When the
measured value of moisture content differs
be conducted on two samples, each sample
paper on it.
paper on it.
aration

15
IS 383 : 2016
plate, turn the mould upside down gently
again, connect to the perforated base plate
again for securing adhesion to the filter paper.
j) Wipe off the materials of the specimen stuck
on the outside of the mould and the perforated
base plate, and measure the total mass.
k) From the sum of masses of the rammed
specimen, the mould and the perforated base
plate, subtract the masses of the mould and
the perforated base plate, and divide it by the
volume of the mould, which gives the wet
density of the rammed specimen.
E-4.2 Curing and Measuring Operation of the
Specimen
The curing and measuring operation of the specimen
shall be as follows:
a) Place the perforated plate with shaft on the
filter paper which is spread on the top surface
of the specimen in the mould.
b) Install the dial-gauge and the attaching device
(gauge holder) correctly. As shown in Fig. 11,
dip it in the curing apparatus, and record the
first reading of the dial-gauge after the mould
reaches equilibrium with respect to the water
bath.
c) For curing, keep it at 80 ± 3°C for 6 h, then
leave it to cool in the curing apparatus.
d) Repeat the operation E-4.2 (c), one time per
day for 10 days.
e) On finishing of the curing period, record the
last reading of the dial-gauge, remove the
gauge holder and the dial-gauge, take out the
mould from water, tilt it gently with the
perforated plate with shaft on it, and remove
the accumulated water. Then, after leaving
quietly for 15 min, remove the filter paper and
measure the mass.
E-5 CALCULATION
The calculation of volumetric expansion ratio shall be
made as follows:
a) The volumetric expansion ratio shall be
calculated by the following formula, and be
rounded off to the first decimal place:
E = 100 × (Df – Di) / H
where
E = volumetric expansion ratio, percent,
Df = last reading of the dial-gauge in mm,
Di = first reading of the dial-gauge in mm,
and
H = initial height of the specimen
(125 mm).
b) The test shall be carried out on three
specimens prepared from the sample taken at
the same time in accordance with E-3.2, and
the average of the three test results shall be
taken. The averaged value shall be rounded
off to the first decimal place.
FIG 11: TEST SETUP FOR VOLUMETRIC EXPANSION TEST
(c), one time per
c) For curing, keep it at 80 ± 3°C for 6 h, then
reaches equilibrium with respect to the water
(gauge holder) correctly. As shown in Fig. 11,
where
(c), one time per
(c), one time per
H
i = first reading of the dial-gauge in mm,
= last reading of the dial-gauge in mm,
= first reading of the dial-gauge in mm,
= first reading of the dial-gauge in mm,
= last reading of the dial-gauge in mm,
= volumetric expansion ratio, percent,
= 100 × (
= 100 × (
= 100 × (
a) The volumetric expansion ratio shall be

16
IS 383 : 2016
ANNEX F
(Foreword)
COMMITTEECOMPOSITION
Cement and Concrete Sectional Committee, CED 02
Organization Representative(s)
In Personal Capacity (7A, Autumn Hue, Seasons, SHRI JOSE KURIAN (Chairman)
PPD Appartments, Kuravankonam, Trivandrum)
ACC Ltd, Mumbai SHRI S. A. KHADILKAR
SHRI RAMAN SADANAND PARULEKAR (Alternate)
Ambuja Cements Limited, Mumbai SHRI J. P. DESAI
SHRI C. M. DORDI (Alternate)
Atomic Energy Regulatory Board, Mumbai SHRI L. R. BISHNOI
SHRI SAURAV ACHARYA (Alternate)
Builders’ Association of India, Mumbai SHRI SUSHANTA KUMAR BASU
SHRI D. R. SEKAR
Building Materials and Technology Promotion Council, SHRI J. K. PRASAD
New Delhi SHRI C. N. JHA (Alternate)
Cement Manufacturers’ Association, Noida DR K. C. NARANG
DR S. K. HANDOO (Alternate)
CSIR-Central Building Research Institute, Roorkee SHRI S. K. SINGH
SHRI SUBHASH GURRAM (Alternate)
CSIR-Central Road Research Institute, New Delhi DR RAKESH KUMAR
CSIR-Structural Engineering Research Centre, Chennai DR K. RAMANJANEYULU
SHRI P. SRINIVASAN (Alternate)
Central Public Works Department, New Delhi SHRI A. K. GARG
SHRI RAJESH KHARE (Alternate)
Central Soil and Materials Research Station, New Delhi SHRI MURARI RATNAM
SHRI S. L. GUPTA (Alternate)
Central Water Commission, New Delhi DIRECTOR (CMDD)(N&W)
DEPUTY DIRECTOR (CMDD) (NW&S) (Alternate)
Conmat Technologies Pvt Ltd, Kolkata DR A. K. CHATTERJEE
Construction Chemicals Manufacturers’ Association, Mumbai SHRI SAMIR SURLAKER
SHRI UPEN PATEL (Alternate)
Delhi Development Authority, New Delhi CHIEF ENGINEER (QAC)
DIRECTOR (MATERIAL MANAGEMENT) (Alternate)
Engineers India Limited, New Delhi SHRI RAJANJI SRIVASTAVA
SHRI ANURAG SINHA (Alternate)
Fly Ash Unit, Department of Science and Technology, SHRI CHANDER MOHAN
New Delhi
Gammon India Limited, Mumbai SHRI VENKATARAMANA N. HEGGADE
SHRI MANISH MOKAL (Alternate)
Hindustan Construction Company Ltd, Mumbai DR CHETAN HAAZAREE
SHRI MANOHAR CHERALA (Alternate)
Housing and Urban Development Corporation Limited, SHRI DEEPAK BANSAL
New Delhi
Indian Association of Structural Engineers, New Delhi PROF MAHESH TANDON
SHRI GANESH JUNEJA (Alternate)
Indian Concrete Institute, Chennai SHRI VIVEK NAIK
SECRETARY GENERAL (Alternate)
Indian Institute of Technology Madras, Chennai DR DEVDAS MENON
DR MANU SANTHANAM (Alternate)
Indian Institute of Technology Roorkee, Roorkee DR V. K. GUPTA
DR BHUPINDER SINGH (Alternate)
nit, Department of Science
imited, New Delhi S
Delhi Development Authority, New Delhi C
Construction Chemicals Manufacturers’ Association, Mumbai S
td, Kolkata D
td, Kolkata D
Central Water Commission, New Delhi D
Central Soil and Materials Research Station, New Delhi S
Central Public Works Department, New Delhi S
CSIR-Structural Engineering Research Centre, Chennai D
CSIR-Central Road Research Institute, New Delhi D
CSIR-Central Building Research Institute, Roorkee S
Cement Manufacturers’ Association, Noida D
Building Materials and Technology Promotion Council, S
New Delhi S
HRI J. K. P
HRI
SHRI
S SHANTA
USHANTA
nit, Department of Science and Technology, S
and Technology, S
imited, New Delhi S
imited, New Delhi S
td, Kolkata D
td, Kolkata D
CSIR-Central Road Research Institute, New Delhi D
CSIR-Structural Engineering Research Centre, Chennai DR
SHRI
CSIR-Central Road Research Institute, New Delhi DR R
S. K. S
HRI
S. K. H
S. K. H
K. C. NARANG
C. N. J
RASAD
C. N. J
C. N. J
D. R. SEKAR
RASAD
RASAD
EKAR
MAR B
EKAR
B
BAS
CHARYA (Alternate
(
Alternate)

17
IS 383 : 2016
Indian Roads Congress, New Delhi SECRETARY GENERAL
DIRECTOR (Alternate)
Institute for Solid Waste Research & Ecological Balance, DR N. BHANUMATHIDAS
Visakhapatnam SHRI N. KALIDAS (Alternate)
Lafarge India Pvt Ltd, Mumbai MS MADHUMITA BASU
SHRI YAGYESH KUMAR GUPTA (Alternate)
Military Engineer Services, Engineer-in-Chief’s Branch, MAJ GEN S.K. SRIVASTAV
Army HQ, New Delhi SHRI MAN SINGH (Alternate)
Ministry of Road Transport & Highways, New Delhi SHRI A. P. PATHAK
SHRI A. K. PANDEY (Alternate)
National Council for Cement and Building Materials, Ballabgarh SHRI V. V. ARORA
DR M. M. ALI (Alternate)
National Test House, Kolkata SHRI B. R. MEENA
SHRIMATI S. A. KAUSHIL (Alternate)
Nuclear Power Corporation of India Ltd, Mumbai SHRI ARVIND SHRIVASTAVA
SHRI RAGHUPATI ROY (Alternate)
OCL India Limited, New Delhi DR S. C. AHLUWALIA
Public Works Department, Govt of Tamil Nadu, Chennai SUPERINTENDING ENGINEER
EXECUTIVE ENGINEER (Alternate)
Ramco Cements Ltd, Chennai SHRI BALAJI K. MOORTHY
SHRI ANIL KUMAR PILLAI (Alternate)
The India Cements Limited, Chennai DR D. VENKATESWARAN
SHRI S. GOPINATH (Alternate)
The Indian Hume Pipe Company Limited, Mumbai SHRI P. R. BHAT
SHRI S. J. SHAH (Alternate)
The Institution of Engineers (India), Kolkata DR H. C. VISVESVARAYA
SHRI S. H. JAIN (Alternate)
Ultra Tech Cement Ltd, Mumbai DR SUBRATO CHOWDHURY
SHRI BISWAJIT DHAR (Alternate)
Voluntary Organization in Interest of Consumer Education, SHRI M. A. U. KHAN
New Delhi SHRI H. WADHWA (Alternate)
In personal capacity [B-803, Gardenia Building, Malard (East), SHRI A. K. JAIN
Mumbai]
In personal capacity (36, Old Sneh Nagar, Wardha Road, SHRI L. K. JAIN
Nagpur)
In personal capacity (EA-92, Maya Enclave, Hari Nagar, SHRI R. C. WASON
New Delhi)
In personal capacity (E-1, 402, White House Apartments, SHRI S. A. REDDI
R.T. Nagar, Bangalore)
BIS Directorate General SHRI B. K. SINHA, Scientist ‘E’ and Head (Civ Engg)
[Representing Director General (Ex-officio)]
Member Secretaries
SHRI SANJAY PANT
Scientist ‘E’ (Civil Engg), BIS
SHRI S. ARUN KUMAR
Scientist ‘C’ (Civil Engg), BIS
and
SHRIMATI DIVYA S.
Scientist ‘B’ (Civil Engg), BIS
BIS Directorate General S
R.T. Nagar, Bangalore
E-1, 402, White House Apartments,
)
EA-92, Maya Enclave, Hari Nagar,
36, Old Sneh Nagar, Wardha Road,
New Delhi S
B-803, Gardenia Building, Malard (East),
Voluntary Organization in Interest of Consumer Education, S
New Delhi S
td, Mumbai D
td, Mumbai D
The Institution of Engineers (India), Kolkata D
imited, Mumbai S
imited, Mumbai S
imited, Chennai D
imited, Chennai D
imited, Chennai D
td, Chennai S
Public Works Department, Govt of Tamil Nadu, Chennai SUPERINTENDING
imited, New Delhi D
imited, New Delhi DR S. C. A
imited, New Delhi D
SHRI
S. C. A
ARVIND
HRI R
HRI R
New Delhi S
New Delhi S
New Delhi S
td, Mumbai D
td, Mumbai D
td, Mumbai D
imited, Mumbai SHRI
imited, Mumbai SHRI
D. V
SHRI
HRI A
D. V
L K. M
ANI
AJI K. M
TIVE
K. M
ENGINEER
PERINTENDING ENGINEER
PERINTENDING
WA IA
WALIA
ROY (
OY
PATI
SHI
SHIL Alternate
L (Alternate
(
(
)

18
IS 383 : 2016
Panel for Revision of Cement Standards, CED 2/P3
In personal capacity, (7A, Autumn Hue, Seasons, PPD SHRI JOSE KURIAN (Convener)
Appartments, Kuravankonam, Trivandrum)
CSIR-Central Building Research Institute, Roorkee SHRI S. K. SINGH
SHRI SUBHASH GURRAN (Alternate)
Central Public Works Department, New Delhi SHRI B. B. DHAR
SHRI MATHURA PRASAD (Alternate)
CSIR-Central Road Research Institute, Roorkee DR DEVESH TIWARI
SHRI BINOD KUMAR (Alternate)
Central Soil and Materials Research Station, New Delhi SHRI G. K. VIJH
Indian Concrete Institute, Chennai SHRI K. P. ABRAHAM
Military Engineer Services, Engineer-in-Chief’s Branch, BRIG GIRISH JOSHI
Army HQ, New Delhi LT COL GAURAV KAUSHIK (Alternate)
National Council for Cement and Building Materials, SHRI V. V. ARORA
Ballabgarh
Ready Mixed Concrete Manufacturers’ Association, Mumbai SHRI VIJAYKUMAR R. KULKARNI
SHRI M. RAVISHANKAR (Alternate)
CSIR-Structural Engineering Research Centre, Chennai SHRIMATI AMBILY P. S.
Dr P. SRINIVASAN (Alternate)
In personal capacity (EA-92, Maya Enclave, SHRI R. C. WASON
Hari Nagar, New Delhi)
In personal capacity (Type IV/17, President’s SHRI K. H. BABU
Estate, New Delhi)
CSIR-Structural Engineering Research Centre, Chennai SHRIMATI
CSIR-Structural Engineering Research Centre, Chennai S
Ready Mixed Concrete Manufacturers’ Association, Mumbai SHRI
SHRI
HRI VIJAYK
V
V. V. A
HRI K. H. B
R. C. W
K. H. B
R. C. W
R. C. W
Dr P. SRINIVASAN
MBIL
AVISHANKAR
Y P. S.
R. K
AVISHANKAR
AVISHANKAR
R. K
R. K
SHIK (
SHIK (Alternate

Bureau of Indian Standards
BIS is a statutory institution established under the Bureau of Indian Standards Act, 1986 to promote
harmonious development of the activities of standardization, marking and quality certification of goods
and attending to connected matters in the country.
Copyright
BIS has the copyright of all its publications. No part of these publications may be reproduced in any form
without the prior permission in writing of BIS. This does not preclude the free use, in the course of
implementing the standard, of necessary details, such as symbols and sizes, type or grade designations.
Enquiries relating to copyright be addressed to the Director (Publications), BIS.
Review of Indian Standards
Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed
periodically; a standard along with amendments is reaffirmed when such review indicates that no changes are
needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards
should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of
‘BIS Catalogue’ and ‘Standards : Monthly Additions’.
This Indian Standard has been developed from Doc No.: CED 02 (7992).
Amendments Issued Since Publication
Amend No. Date of Issue Text Affected
BUREAU OF INDIAN STANDARDS
Headquarters:
Manak Bhavan, 9 Bahadur Shah Zafar Marg, New Delhi 110002
Telephones : 2323 0131, 2323 3375, 2323 9402 Website: www.bis.org.in
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{
{
{
{
{
Published by BIS, New Delhi
Central : Manak Bhavan, 9 Bahadur
NEW DE
: 2323 0131, 2323 3375, 2323 9402
: 2323 0131, 2323 3375, 2323 9402
developed from Doc No.: CED 02 (7992).
possession of the latest amendments or edition by referring
ents or edition by referring
needed; if the review indicates that changes are needed, it is taken up for revision.
HI 110002 2323 3841
: 2323 0131, 2323 3375, 2323 9402
: 2323 0131, 2323 3375, 2323 9402
REAU
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