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JSIR Vol.67(04) [April 2008] >


Title: Multigrade bitumen verses conventional bitumen
Authors: Jain, M C
Negi, R S
Krishna, A
Keywords: Bitumen
Field performance
Marshall Stability
Multigrade bitumen
Performance grading
Issue Date: Apr-2008
Publisher: CSIR
Abstract: To evaluate field performance at hot and cold climatic regions, test tracks were laid using multigrade bitumen (MB) and conventional bitumen (CB) following 2 cm thick premix carpet, mix seal surfacing, semi-dense bituminous concrete and dense bituminous concrete road specifications at hot climatic region of Jaisalmer (Rajasthan) in May 2006 and cold climatic region of Drass, Kargil (J&K) in September 2005. Laboratory test results indicate that MB (softer grade) behaves better than bitumen 80/100 at low temperatures and better/comparable with bitumen 60/70 at high temperatures. MB has been characterized for conventional, mechanical properties and Strategic Highway Research Programme (SHRP) protocol. Field trial indicates that performance of MB is superior to CB in both cold and hot climatic regions.
Page(s): 307-313
ISSN: 0022-4456
Source:JSIR Vol.67(04) [April 2008]

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