The growth in various types of industries together with population growth has resulted in enormous increase in production of various types of waste materials world over creating a problem of its disposal in eco-friendly way. To deal with the problem, study on use of plastic waste as partial replacement to bitumen in flexible pavement is considered in the present work. The work consists of an ex...

In last years, a new type of pavement has gained popularity, this is called Semi-Flexible Pavement (SFP). It consists porous asphalt with high air voids between (25-35) % filled cementitious grout materials. This substance offers substantial advantages over both common types pavements (concrete and flexible) such as good resistance to rutting durability. SFP considered an alternative exceed the...

SYNOPSIS This paper presents the results of a study of pavement design based on the plate bearing list. The report supplements previous papers on pavement design, particularly the study reported in 1952 on the use of the triaxial test for design of flexible pavements. A series of tests was conducted on a test section of the Joint Highway Research Project Test Road. These tests were conducted by...

Pavements are constructed to deteriorate because of many factors such as traffic loading, material related factors, climate, and other environmental factors. In order to preserve these investments, a maintenance program should be carried out at right time and right places. One of the most important maintenance activities is asphalt overlays. Designing an overlay is more challenging since it res...

In recent years pavement maintenance planning has become a main task among highway agencies. In order to determine the structural capacity of a flexible pavement, non-destructive testing equipment is used. Many countries use the falling weight deflectometer (FWD). It is possible to obtain deflection data and backcalculate the pavements’ mechanical properties. However, the method used affects th...

The construction and maintenance costs, as well the residual value, were calculated for structurally equivalent rigid flexible airfield pavements, a range of typical commercial aircraft, subgrade conditions. Whole life cost analysis was performed periods, from 40 years to 100 years. For standard 40-year period value based on pavement reconstruction, pavements had 40% 105% higher whole than alth...

Flexible pavements are prone to premature deterioration, and researchers unresolved regarding the importance of underlying causes resulting in inappropriately selected modeling parameters increased uncertainty predicting subsequent behavior performance. A windshield survey, literature fuzzy Delphi study were undertaken as complementary approaches costly conventional investigations identify reas...

evaluating existing flexible pavement condition is a pre-requisite to choose improvement technique that has to be adopted to enhance its quality. to evaluate existing pavements, non-destructive testing methods are desirable. benkelman beam and 5th wheel bump integrator are used to conduct non-destructive tests like deflection and roughness surveys on the existing pavement of 4 lane divided carr...