ROAD CONSTRUCTION METHOD final

Prepared By
Avneet Singh Grewal
9
ROAD CONSTRUCTION METHOD

ROADS – For the movement of Goods
and People
ECONOMIC GROWTH- is directly
related with the quicker movement of goods and
people through better roads.

INTRODUCTION
 Road, path established over land for the
passage of vehicles, people, and animals.
Roads provide dependable pathways for
moving people and goods from one place to
another. They range in quality from dirt
paths to concrete-paved multilane highways.
 Roads are used by various forms
of transportation, such as trucks,
automobiles, buses, motorcycles, and
bicycles.

INDIAN ROAD NETWORK
Class Length (km)
Access Controlled Expressways 200
4-6 lane Divided Highways (with service
rd in crowded areas)
10000
National Highways 66,590
State Highways 1,31,899
Major district roads 4,67,763
Rural & other roads 26,50,000
Total (approx) 33,00,000

The Golden Quadrilateral
India has the
second largest
road network in
the world

PRESENT TREND IN INDIAN ROADS
CONSTRUCTION INDUSTRY
Size
India has an extensive road network of 3.3 million kms –
the second largest in the world
1.Roads carry about 61% of the freight and 85% of the
passenger traffic
2. Highways/Expressways constitute about 66,000 kms
(2% of all roads) and carry 40% of the road traffic
3.The Government of India spends about Rs.18000
crores (US $ 4 billion) annually on road development

HISTORY
 Stone paved streets are found in the city of
Ur in the Middle East dating back to 4000 Bc
 Corduroy roads (log roads) are found dating
to 4,000 BC in Glastonbury, England.
 Brick paved streets were used in India as
early as 3000 BC

TYPES OF ROADS
• Earth Roads
• Gravel road
• Water Bound Macadam Road
• Bituminous pavements
• Cement concrete Pavements.

EQUIPMENTS
NEW HIEGHER CAPACITY EQUIPMENTS
– EXCAVATOR
– MOTORGRADER
– SOIL COMPACTOR
– SENSOR PAVER
– HOT MIXPLANT
– WMM PLANT
– CONCRETE BATCHING PLANT
– TRANSIT MIXERS
– BOOM PLACER
– TRAILER TIPPERS

Latest Resources Applications
Asphalt Batch Mix
Plant
Capacities range
from 60TPH to
160TPH
Drum Mix Plant
Available from 15
TPH to 120 TPH
Capacity.
Wet Mix
Macadam
Plant
Available from
60 TPH to 240
TPH Capacity.
Paver Finisher
Paving width from
2.5 to 9.0 mtr.,
paving thickness
up to 205 mm.
Bitumen Pressure
Distributor
Spraying width
from 2.4 to 9 mtr.
by extension bar.
Road
Sweeper
Standard
sweeping
width is
2.135 mtr.

MODERN TECHNOLOGY AND
CONSTRUCTION METHODS
 SOIL STABILISATION
 SUB SURFACE DRAINAGE
 USE OF MODIFIED BITUMEN
 USE OF WATER BASED EMULSION
 USE OF FLY ASH IN CONCRETE
 REINFORCED EARTH WALL
 QUALITY ASSURANCE CONCEPT
 ECONOMICAL DESIGN USING MODERN
TECHNOLOGY

The advantages of using modified bitumen
are as follows
 Lower susceptibility to daily and seasonal
temperature variations
 Higher resistance to deformation at high
pavement temperature
 Better age resistance properties
 Higher fatigue life for mixes
 Better adhesion between aggregates and
binder
 Prevention of cracking and reective
cracking

 USE OF WATER BASED EMULSION
– Bitumen emulsion is a liquid product in which
bitumen is suspended in a finely divided condition
in an aqueous medium and stabilised by suitable
material
– The bitumen content in the emulsion is around 60%
and the remaining is water.
– Rapid setting emulsions are used for surface
dressing work
– Medium setting emulsions are preferred for premix
jobs and patch repairs work
– Slow setting emulsions are preferred in rainy
season

 USE OF FLY ASH IN CONCRETE
Fly ash, a residue of burning coal / lignite at thermal
power stations, has generally been considered as a
waste material is becoming resource material.
 Reduced heat of hydration.
 Improved workability & Ease of pumping.
 Superior microstructure leading to lower permeability.
 Higher long term strength.
 Better performance in aggressive environment.
 Higher Electrical Resistivity leading to lesser chances of
reinforcement corrosion

CONSTRUCTION PROCEDURE
 Material.
 Location.
 Preparation of sub grade.
 Pavement construction.
 Opening to traffic.

Cement concrete Roads
 The cement concrete pavement maintains a
very high recognition among the engineer
and the road user alike. Due to excellent
riding surface and pleasing appearance, the
cement concrete roads are very much
preferred . The life of a cement concrete
road is much more than any other type of
construction.

CONSTRUCTION OF CEMENT
CONCRETE ROAD SLAB
 Preparation of sub grade and sub base
 Placing of forms
 Batching of material and mixing
 Transporting and placing of concrete
 Compaction and finishing
 Floating and straight edging
 Belting , brooming and edging
 Curing of cement concrete

ROAD CONSTRUCTION METHOD final

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