I. Highway Planning, Management, Performance Evaluation & Instrumentation

3. PAVEMENT PERFORMANCE

Summary
Research works reported in the area of pavement performance mainly comprise studies on performance of bituminous mixes with crumb rubber, natural rubber and SBS, SBR polymer modified binders; Recron 3S polyester fiber and waste plastics; performance of flexible pavements with regular and modified sub bases; asset management study; instrumentation and testing of demonstration stretches for concrete rural roads, comparative merits of bituminous bound macadam (BBM) and Built up Spray Grout (BUSG); use of laterite and yellow stones in WBM construction and suitability of locally available materials for road construction.
On-going projects which are in progress include performance study on proposed flexible pavements with regular and modified sub bases, evaluation of Recron 3S polyester fiber for use in bituminous mixes and use of yellow stone in road construction. New projects initiated and some of which are in advanced stage of progress consist of investigations on field performance of bituminous mixes with modified binders, instrumentation and testing of demonstration stretches for concrete rural roads, suitability of locally available materials for road construction and asset management study of Ahmedabad-Mehsana Toll Road.
SALIENT POINTS FOR DISCUSSION
1. Road Asset Management Study
2. Pavement performance characteristics of newly constructed road sections by using conventional binders versus CRMB, NRMB and waste plastics etc.
3. Specifications of Bituminous Bound Macadam and its application in road structure
4. Evaluate suitability of locally available materials