Grade Determination of Crumb Rubber-Modified Performance Graded Asphalt Binder

Bennert, Thomas; Rutgers University. Center for Advanced Infrastructure and Transportation

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Grade Determination of Crumb Rubber-Modified Performance Graded Asphalt Binder

2013-08-01
By Bennert, Thomas

[PDF-3.63 MB]

English

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Details:

Creators:

Bennert, Thomas
Corporate Creators:

Rutgers University. Center for Advanced Infrastructure and Transportation
Corporate Contributors:

United States. Federal Highway Administration
Subject/TRT Terms:

[+]

Asphalt Mixtures Binders Creep Tests Crumb Rubber Mix Design Research Hub Rheology Shear Modulus Superpave Test Procedures
Publication/ Report Number:

C-08-20
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

University Transportation Research Center ; New York (State). Dept. of Transportation

University Transportation Research Center ; New York (State). Dept. of Transportation Less -
Abstract:

Due to particulates common in crumb rubber-modified asphalt binders, conventional PG grading using the Dynamic Shear Rheometer (DSR) with a gap height of 1.0 mm may not be valid and in accordance with current specifications. Asphalt binder testing and mixture testing was conducted on binders with and without crumb rubber modification to determine an asphalt binder test method which best matches the mixture performance. It was determined that the Multiple Stress Creep Recovery (MSCR) test, conducted with a gap height of 2.0 mm and at in-service temperatures, best correlated with Flow Number testing in the Asphalt Mixture Performance Tester (AMPT). This relationship was found to be better than that of the current DSR test procedure for high temperature PG grading.
Format:

PDF
Funding:

55505-04-03
Collection(s):

University Transportation Centers US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:705c61e055af803c6b451cf444099dfeff7d915ba6d320496f120f39dbb9cf52
Download URL:

https://rosap.ntl.bts.gov/view/dot/27122/dot_27122_DS1.pdf
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Grade Determination of Crumb Rubber-Modified Performance Graded Asphalt Binder

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