II. PAVEMENT ENGINEERING AND PAVING MATERIALS

3. RIGID PAVEMENTS

B. ON GOING PROJECTS
1. Studies on Flakiness and Elongation Index Indices of Aggregates in Different Layers
Date of Start

July 2005
Central Road Research Institute, New Delhi (R)

 
Present Status and Progress
Engineering properties of aggregates and other constituents of bituminous and concrete mixes have been determined, Cement concrete mixes up to 100% flaky and bituminous mixes up to 60 % flaky aggregates have been studied. Interim Report has been prepared.
 
Findings/Conclusions
Limits of flaky aggregates in different layers may be increased by about 10- 20 % of the value determined.
 
Recommendations
Further studies are required to conform the findings