Laboratory Evaluation of Asphalt-Rubber in Asphalt Paving Mixture, MLR-89-15, 1990

(1990) Laboratory Evaluation of Asphalt-Rubber in Asphalt Paving Mixture, MLR-89-15, 1990. Transportation, Department of

pdf
Preview
PDF
IADOT_mlr8915_Lab_Eval_Asphalt_Rubber_Paving_Mix_1990.pdf

File Size:636kB

Abstract

Interest in the use of ground rubber from used tires as a hot asphalt mix binder has been increasing due to the magnitude of the disposal problem posed by the annual addition of millions of waste tires to the refuse stream. This study evaluates, through laboratory means, the performance of asphalt-rubber as a hot mix binder as compared to conventional asphalt. The results indicate that asphalt-rubber outperforms its base asphalt in mixes of identical gradation and comparable void content on tests that are heavily dependent on binder characteristics (resilient modulus and indirect tension). An appreciable increase in rut resistance due to the use of asphalt-rubber is not indicated.

Item Type: Departmental Report
Keywords: Asphalt rubber, Binders, Bituminous binders, Hot mix paving mixtures, Laboratory tests, Modulus of resilience, Performance evaluations, Tension, Tires
Subjects: Transportation
Transportation > Motor vehicles
Transportation > Roads and highways
Transportation > Research
ID Code: 16103
Deposited By: Iowa DOT Library
Deposited On: 18 Feb 2014 17:12
Last Modified: 03 Oct 2014 11:59
URI: http://publications.iowa.gov/id/eprint/16103