Highway Research Record

PAVEMENT ENGINEERING AND PAVING MATERIALS
2.FLEXIBLE PAVEMENT
SUMMARY

In this subsection, twenty-five projects comprising of seven completed, seven ongoing and 11 new projects have been reported covering research activities on Cationic Bitumen Emulsion for binder economy, Multigrade Bitumen, Porous Asphalt with Polymer Modified Bitumen, Field trials of SBS, PMB, NRMB, CRMB and Stone Matrix Asphalt. Some projects are reported on micro surfacing technology, use of geotextiles to prevent reflection cracks on bituminous overlays over cracked concrete pavement, impact of flakiness and elongation Indices on performance of Dense Bituminous Macadam, Drain Asphalt Modified Additives, Noise Absorbing Porous Bituminous Concrete and Evaluation of Resilient Modulus on Soil, Recycling of Pavement Materials etc.

SALIENT POINTS FOR DISCUSSION
1. Cationic Bituminous Emulsion for Binder Economy
2. Production of Multigrade Bitumen
3. Porous Asphalt with Polymer Modified Bitumen
4. NRMB and CRMB in Bituminous Surfacing under different climatic conditions
5. Stone Matrix Asphalt 6. Microsurfacing Technology
7. Noise Absorbing Porous Bituminous Concrete