VI. RESEARCH WORK DONE IN ACADEMIC INSTITUTIONS RELATED TO THESIS WORK

B. PAVEMENT ENGINEERING AND PAVING MATERIALS
1. An Investigation on Bitumen Modified with Shredded Bi-Cycle Tires
Date of Start

May 2005
Indian Institute of Technology, Kharagpur (R)

 

Scope and Objectives

The main objective of the work was to study the effect of tire shred concentration on the properties of the modified binder and the changes in the properties of the mixes with the modified binder to find the optimum binder content.

 
Methodology
Testing of DBM mixes with modified binder limited to Marshall testing, Static indentation, Static indirect tension test and repeated loading indirect tension test for Modulus of Resistance (MR) determination
 
Findings and Conclusions
(i) Performance of bi-cycle tire shred modified binder was superior to that of unmodified 80/100 grade bitumen

(ii) Optimum tire shred concentration was around 15% by weight of bitumen

(iii) The Modulus of resilience of the DBM mix with tire shred modified binder was very high compared to that with 80/100 bitumen, material saving up to 40% can be achieved when modified binder was used instead of 80/100 binder

(iv) A methodology was developed for preparation of bi-cycle tire shred modified binder