II. PAVEMENT ENGINEERING AND PAVING MATERIALS

2. FLEXIBLE PAVEMENT

B. NEW PROJECTS
1. Field Trials of Multigrade Bitumen at two different Climatic Regions (Hot & Cold Climatic Regions)
Date of Start:

August, 2005
(i) Indian Oil Corporation Ltd., R&D Centre, Faridabad (R, S, I)
(ii) Central Road Research Institute, New Delhi (R, C)
(iii) Border Roads Organisation, New Delhi (C)

 
Scope and Objectives
To carry out field trials with Multigrade bitumen & conventional bitumens using four different road specifications namely premix carpet, mix seal surfacing, semi-dense bituminous concrete & bituminous concrete to see the actual performance of multigrade bitumen in the field in comparison with conventional bitumens.
 
Methodology
Test sites have been selected at Drass (Cold climatic region) and at Jaisalmer (Hot climatic region). 100 meters each of test sections with multigrade bitumen and control sections with conventional bitumens 80/100 & 60/70 have been laid at both the locations with four road specifications using hot mix plant & paver. Performance evaluation of all the sections has been carried out immediately after laying.

 

Limitations
Performance evaluation will be carried out after every six months for four to five years.