Highway construction PPT

ARYA COLLEGE OF ENGG&RESEARCH
CENTRE,JAIPUR
SUMMER TRAINING PRESENTATION
ON
ROAD WORK
Submitted to:- Submitted by:-
Mr. Rajpal Singh Vikas Sukhwal
Head of Department Roll No. : 15EAYCE205
Department of Civil Engineering Class : 4th year(7th sem.)

PROJECT DETAIL
S. NO PROJECT DETAIL DESCRIPTION
1. Project Name Bhilwara to Chittore Mega
Highway Construction
2. Site Location 20 kM Apart From Bhilwara
3. Project Head Mr. Brahma Lal Sharma
4. Area Conveyed by
Project
25 KM Mega Highway Bhilwara
to Chittore

CONTENTS
 Introduction
 Road
 Earth work
 Pavements
 Types of pavements
 Road types
 Roadway construction
 Equipment
 Bitumen road construction procedure
 Conclusion

INTRODUCTION
 Development of a country depends on the connectivity of various places with
adequate road network.
 Roads constitute the most important made of communication in areas where
railways have not developed much
 India has one of the largest roads networks in the world (over 3 million km at
present).

 For the purpose of management and administration, roads in India are divided into the
following five categories:
1. National Highways (NH)
2. State Highways (SH)
3. Major District Roads (MDR)
4. Other District Roads (ODR)
5. Village Roads (VR)

“…it is not wealth that built the roads but, roads that built our wealth”
-John F. Kennedy
Indian road network-current status
NHs are less than 2% of network but carry 40% of total traffic.
National Highways 58,112
State Highways 1,37,119
Major Districts Roads 4,70,000
Village and other roads 26,50,000
Total Road Length 33,15,231 km

ROAD
 Roads are defined as routes or paths that begin at one destination and lead to
another.
 Road is an open, generally public way for the passage of vehicles, people, and
animals.

EARTH WORK
The sub-grade soil is prepared by bringing it to desire grad.
 Soil filling
 Spreading and Levelling
 Compaction

PAVEMENTS
 Pavement is finished with a hard smooth surface. It helped make them durable and
able to withstand traffic and the environment. They have a life span of between 20-
30 years.
Types of pavements:
1. Flexible Pavement
2. Rigid Pavement

FLEXIBLE PAVEMENT
 Flexible pavements are those which are
surfaced with bituminous or asphalt
materials. It’s flexible since the total
pavement structure bends or deflects
due to the traffic loads. Generally this
type of pavement requires some sort of
maintenance or restoration every 10 to
15 years.

RIGID PAVEMENT
 A rigid pavement structure is
composed of a hydraulic cement
concrete surface course and concealed
base and sub base courses. The surface
course is the rigid layer and provides
the majority of strength.
 While, in case of rigid pavements most
of the load carries by slab itself
and slight load goes to the underlying
strata.

Road types :
1. Earth road and gavel road
2. Water bound macadam (WBM)
3. Bituminous or blacktop road
4. Cement concrete road

Earth road WBM road
Bituminous road Cement concrete road

ROADWAY CONSTRUCTION
 Carriageway
 Pavement
 Kerb
 Shoulder
 Sidewalks / Footpath

Carriageway Kerb
Shoulder Sidewalks/Footpaths

Equipment:
 Compacting material (vibratory roller)
 Dozer and scraper
 Power shover, shovels
 Concrete mixer
 Watering devices
 Mild steel sections and blocks
 Barricading
 Signage board

Vibratory Roller Shovels
Concrete Mixer Barricade

BITUMEN ROAD CONSTRUCTION PROCEDURE
1. Preparation of the existing base course layer
The existing surface is prepared by removing the pot holes or rust if any. The
irregularities are filled in with premix chippings at least a week before laying surface
course.
2. Application of Tack Coat
It is desirable to lay AC layer over a bituminous base or binder course. A tack coat of
bitumen is applied at 6.0 to 7.5 kg per 10 sq.m area, this quantity may be increased to
7.5 to 10 kg for non-bituminous base.

3. Preparation and placing of Premix
The premix is prepared in a hot mix plant of a required capacity with the desired quality
control. The bitumen may be heated upto 150 – 177 deg C and the aggregate temperature
should not differ by over 14 deg C from the binder temperature. The hot mixed material is
collected from the mixture by the transporters, carried to the location is spread by a
mechanical paver at a temperature of 121 to 163 deg C. the camber and the thickness of
the layer are accurately verified.
4. Rolling
A mix after it is placed on the base course is thoroughly compacted by rolling at a speed
not more than 5km per hour.
The initial or break down rolling is done by 8 to 12 tonnes roller and the intermediate
rolling is done with a fixed wheel pneumatic roller of 15 to 30 tonnes having a tyre
pressure of 7kg per sq.cm. the wheels of the roller are kept damp with water. The final
rolling or finishing is done by 8 to 10 tonne tandem roller.

5. Quality control of bituminous concrete construction
The routine checks are carried out at site to ensure the quality of the resulting
pavement mixture and the pavement surface.

CONCLUSION
Fundamentals of road construction consists of following topics:
 Construction management overview
 Preliminary investigations
 Setting out
 Earthworks
 Pavements
 Drainage
 Roadsides

Highway construction PPT

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Highway construction PPT