II. PAVEMENT ENGINEERING AND PAVING MATERIALS

2. FLEXIBLE PAVEMENT

Summary

Bituminous construction has tremendous improvements in terms of material and techniques. Binders and mixes are modified using many additives and materials and used in a considerable way. The performance of these layers is also being monitored for different pavements like fatigue and rutting properties.


Use of unconventional and new materials is being largely explored. Researchers have focused on using byproducts like chalk and polymer wastes. However, suitable evaluation needs to be done and use of sophisticated equipment and methods, like SHRP should be used for performance based mix design of bituminous mixes.
SALIENT POINTS FOR DISCUSSION
1. Modification of binders and mixes by unconventional methods
2. Comparative study of different specifications
3. Effect of aggregate grade and shape on pavement performance
4. Evaluation of performance by various techniques
5. SHRP specifications and equipment