Download - 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 NETWORKClass 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
SizeIndia 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.
GRAVEL ROAD & W.B.M
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 ApplicationsAsphalt Batch Mix PlantCapacities range from 60TPH to 160TPH
Drum Mix Plant Available from 15 TPH to 120 TPH Capacity.
Wet Mix Macadam PlantAvailable from 60 TPH to 240 TPH Capacity.
Paver FinisherPaving 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
MODERN TECHNOLOGY AND CONSTRUCTION METHODS
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
MODERN TECHNOLOGY AND CONSTRUCTION METHODS 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
MODERN TECHNOLOGY AND CONSTRUCTION METHODS
USE OF FLY ASH IN CONCRETEFly 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
Construction of Concrete Road
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