Before Design of Flexible Pavement by Group Index Method, let us understand What is Flexible Pavement? A true flexible pavement yields “elastically” to traffic loading. It is constructed with a bituminous-treated surface or a relatively thin surface of hot-mix asphalt ...
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Superelevation in Highways -Analysis and Design
What is Superelevation in Highway Engineering? Superelevation is the transverse slope provided to counteract the effect of centrifugal force and reduce the tendency of vehicle to overturn and to skid laterally outwards by raising the pavement outer edge with respect ...
SIGHT DISTANCE CONSIDERATIONS FOR HIGHWAYS
What is Sight Distance in Highway Engineering? Sight Distance is a length of road surface which a driver can see with an acceptable level of clarity. It plays an important role in geometric highway design because it establishes an acceptable ...
Types of Pavement – Flexible Pavements and Rigid Pavements
Types of Pavements There are two types of pavements based on design considerations i.e. flexible pavement and rigid pavement. Difference between flexible and rigid pavements is based on the manner in which the loads are distributed to the subgrade. Before ...
Reconnaissance Survey Methods for Highway Route Selection
Reconnaissance survey is done to examine the general character of the area for the purpose of determining the most feasible route or routes for further more detailed investigations. Data collected from reconnaissance survey is used for feasibility study of all ...
Partial-Depth Repair of Concrete Pavements
The purpose of partial-depth repairs is to correct localised areas of concrete pavement distress. Repair of this type restores ride ability, deters further deterioration, reduces foreign object damage potential, and provides proper edges so that joints can be effectively resealed. ...
CBR METHOD – I R C RECOMMENDATIONS
I R C RECOMMENDATIONS FOR THE CBR METHOD OF DESIGN Some of the important points recommended by IRC for the CBR method of design (IRC:37 – 1970) are given below: The CBR tests should be performed on remoulded soils in ...
LOAD-TRANSFER RESTORATION OF PAVEMENTS
New pavement joints typically exhibit good load transfer, particularly if the joints are doweled. However, repeated heavy loads can cause an elongation of the dowel sockets and result in dowel looseness and a reduction of load-transfer efficiency. As load-transfer efficiency ...