Soil Stabilization using Pro-base Technology

International Journal of Engineering and Management Research e-ISSN: 2250-0758 | p-ISSN: 2394-6962
Volume-10, Issue-5 (October 2020)
www.ijemr.net https://doi.org/10.31033/ijemr.10.5.7
30 This work is licensed under Creative Commons Attribution 4.0 International License.
Soil Stabilization using Pro-base Technology
Dr. Sanjeev Kumar Gupta1
and Gurmeet Singh2
1
HOD, Civil Engineering Department, Government College of Engineering and Technology, Jammu, Jammu & Kashmir,
INDIA
2
Assistant Professor, Department of Civil Engineering, Government College of Engineering and Technology, Jammu, Jammu
& Kashmir, INDIA
Corresponding Author: gurmeet.b.tech@gmail.com
ABSTRACT
Roads are the lifeline of the nation and hence a road
must be of better quality which could make effective land
access possible. According to a research conducted in Sri
Lanka, if you want to rescue a village from poverty, 10-20
years of educational subsidy might not work, but if the same
amount of money is funneled on road infrastructure
development, you can see results within 2 years. An effective
road network ensures efficient delivery of goods and
transportation of people, directly contributing to the
economic growth of the region. Due to economic reasons in
developing nations like India, it is not possible to make paved
roads especially in rural areas. These areas are mostly
connected by the use of unpaved roads called as earth road or
soil roads. But there are many problems associated in
building these roads particularly like deterioration of the
surface usually by rutting and formation of potholes, dusty in
dry state and muddy during wet state. The basis of this report
is to make aware about the non-traditional soil stabilization
technique using Probase SH-85 Soil Hardener for hardening
soil of any type and TX-85 Soil Stabilizer & Strengthener for
stabilizing unstable soil and at last sealing it by spraying with
Probase PB-65 Soil Sealant on soil surface. The Probase Road
System ensures making soil road no longer dusty and muddy.
These products are free from toxins and are environmental
friendly unlike bitumen, soil-cement, lime and asphalt roads.
Probase soil stabilizer will hence not only help in stabilizing
the soil but will also reduce maintenance and construction
cost, along with ensuring that the roads remain open and well
operational in rainy season and dust-free in dry season that is
to make it an all-weather road.
Keywords-- Probase PB-65 Soil Sealant, Probase SH-85
Soil Hardener, Probase TX-85 Soil Stabilizer &
Strengthener, OMC, UCS, MDD, CBR
I. INTRODUCTION
The stability of the underlying soil determines the
total performance of the pavement. The structural quality of
each layer has the inner ability to provide support and helps
in distributing superimposed load. Since the available earth
does not have the appropriate properties to serve the
engineering purpose and therefore needs to be substituted
by effective materials to modify and improve their
properties. It is not always efficient to import good quality
material to the construction site and therefore locally
available material has to be modified for engineering
purposes. This is usually done by physical or chemical
stabilization. Soil stabilization means to alter any property
of soil to improve its engineering and structural
performance permanently. Engineering properties of soil
depends upon different soil composition, different
geological deposits and physical/chemical interaction of
soil particles. Due to all these differences it is necessary to
do its site specific treatment for stabilization. It is important
to consider various engineering aspects before stabilization
to have effective and efficient solution. Stabilization can be
done by various means such as electric, thermal,
mechanical and chemical. Mostly mechanical and chemical
stabilization are adopted. Mechanical stabilization also
known as compaction is done by densification of soil by
applying mechanical energy. It occurs when air is expelled
out of the soil voids without much affecting the water
content. It is more suitable for cohesion-less soil as
compared to cohesive soil as cohesion force and inter-
particle bonding interferes with particle rearrangement
during the process of compaction. Hence physio-
chemical(Physical & Chemical) properties of fine grained
soil by using chemical stabilizers/modifiers is most efficient
stabilization than densification in fine grained soil. It is
always advised to before applying any technique/method
for soil stabilization it is important to study it in the
laboratory.
II. OBJECT & SCOPE OF
INVESTIGATION
The objective of this work is to evaluate additive
of Eco-Green Road system (SH-85 and TX-85) as a soil
stabilizer for flexible pavement and characterization of soil
sealant (PB-65). To assess the efficacy of the additive, the
following laboratory experiments were carried out:
 Geotechnical characterization of soil.
 Study of modification of soil by additives of Eco-
Green road system.
 Strength and durability assessment of soil

stabilized with additives of Eco-Green road
system.
 Characterization of soil sealant.
III. RESEARCH METHODOLOGY
The whole study and investigation was done to
find the change in the strength of soil (taken from
SIROFATI road) after adding admixtures like SH-85 &
TX-85. The study consists of various tests like sieve
analysis, liquid limit test, plastic limit test and proctor test
on the natural soil deposits (without adding admixtures) &
UCS and CBR were done on the samples made from both
the natural soil and soil with admixtures. In the given below
table the various properties of SH-85 & TX-85 are listed
below.
3.1 Specimen for Testing
The Proctor test determines the optimum water
content for the compaction of that particular soil.
Compaction test was done as per IS: 2720 (Part 8). To see
the change in OMC and MDD value, the proctor test of
natural soil with additives was also done The samples for
UCS & CBR were prepared at OMC and MDD which were
predetermined through proctor tests. The OMC and MDD is
taken as average of all the samples. The OMC and MDD
for different samples taken are given as follows:
Figure No. 1
SAMPLE NO. 1: OMC= 9.27, MDD= 1.99
Figure No. 2
SAMPLE NO. 2: OMC= 11.78, MDD= 1.98
Figure No. 3
SAMPLE NO.3: OMC= 10.43, MDD= 2.01
The various moulds used were as follows:
 UCS: Cylindrical split type mould having internal
dia. 2inch &height 4inch.UCS test determines the
very unconfined compressive nature, which
actually means the soil is supported by itself by
means of internal bonding and strength of clayey
soil. The test is strain controlled as when the soil

sample is loaded rapidly the pore pressures (water
within the soil) undergo changes that do not have
enough time to dissipate. Unconfined compressive
strength may be defined as the load per unit area at
which an unconfined cylindrical specimen of soil
will fail in shear in the axial compression test. It
was done as per IS: 2720 (Part 10). UCS test was
done on both unmodified and modified soil. The
samples were prepared at OMC and MDD. Test
samples were kept in desiccators to retain
moistures of the sample
 CBR: Cylindrical mould having internal diameter
150mm and a height of 175mm which is provided
with a detachable collar 50mm height.CBR test is
a penetration test for evaluation of the mechanical
strength of road sub grade and bases. Test involves
the measure of pressure required for penetration of
standard plunger into soil sample. CBR is defined
as ratio of pressure required to penetrate a standard
plunger into soil sample to the pressure required to
achieve an equal penetration on a standard crushed
rock material. Higher CBR value represents the
higher bearing capacity of soil. The test was done
as per IS: 2720 (Part 16). CBR (four day soaked)
test was done on both modified and unmodified
soil.
Figure No. 4
Unconfined Strength Testing Machine
Figure No. 5
CBR Mould
IV. RESULTS AND DISCUSSION
The test results obtained are shown below. From
the following table it can be seen that on addition of SH-85
& TX-85 the mechanical strength of the soil is increased.
Different dose of
additives(0.165% TX-85)
CBR% UCS
(kg/cm2
)
Natural soil 14 days curing 0.74 0.297
2% SH-85,14 days curing 3.5 0.193
3.5% SH-85, 14 days curing 5.6 0.329
5% SH-85, 14 days curing 7.8 0.607
2% SH-85,10days curing 4
days soaking
2.3 0.163
days soaking
5.5 0.23
days soaking
12.5 0.59
V. CONCLUSION AND FUTURE
SCOPE
Based on laboratory studies, it was concluded that
soil treated with 5 % SH-85 and 0.165% TX-85 additives
of Ecogreen Road system can be considered for
stabilization of subgrade for low volume traffic roads i.e.
less than 1 msa traffic. The roads of rular areas where it is

quite difficult to stabilize the roads with other techniques
can be easily treated with probase technology by the
addition of SH-85 and TX-85. As such roads have low
traffic volume and density such roads can withstand various
loads by the use of SH-85 and TX-85. These stabilizers can
further be used with other solvents with utmost care and
only after proper testing. in India the probase technology is
generally used in far flung areas or the roads which are
under the scheme of PMGSY like that in Udhumpur side of
Jammu. SH-85 and TX-85 can also be used with PB-65 for
further improvement in the soil stabilization technique. It
should be kept in mind that not so much research has been
done on this topic because of the nature of the technology
as it is restricted to be used in rular areas. Also it should be
noted down that the results may vary from place to place as
the nature of the soil itself changes or varies accordingly.
This technology can also be used in the stabilization of
steep slopes so as to prevent them from sliding or
overturning.
REFERENCES
[1] www.ncbi.nlm.nih.gov/pmc/articles/PMC4756670/.
[2] www.sciencedirect.com/topics/engineering/soil-
stabilization.
[3] iopscience.iop.org/issue/1755-1315/220/1.
[4] A C S V Prasad & C.N.V. Satyanarayana Reddy.
(2015). Strength characteristics of cement stabilized well
graded gravel. In: 50th
Indian Geotechnical Conference,
Pune, India.
[5] civilengineer.co.in/wp-content/uploads/2017/03/IS-
2720-PART-10-1991-INDIAN-STANDARD-METHODS-
OF-TEST-FOR-SOILS-DETERMINATION-OF-
UNCONFINED-COMPRESSIVE-STRENGTHSECOND-
REVISION.pdf.
[6] geotechnicaldesign.info/bs5930-2015/g46-4.html.
[7] www.solidbasemalta.com/materials.html.
[8] www.ncbi.nlm.nih.gov/pmc/articles/PMC5008773.

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