Title: Use of Hamburg Rut Testing Data to Validate the Use of Jnr as a Performance Parameter for High-Temperature Permanent Deformation
Abstract: As part of the verification process for the establishment of nonrecovered compliance (J sub nr) as a reasonable parameter for describing the high-temperature performance of bituminous mixtures, MTE Services, Inc., used results obtained from its series of Binder Rheology and Rutting Studies, which have been ongoing since 2004. In general these studies have sought to identify binder rheological characteristics that correlated to mixture-rutting behavior as determined in the laboratory using an air temperature–controlled Hamburg-type rut tester. Two 61-mm thick gyratory pills are cut so that they can be butted against each other to form a single test specimen. Two such combined specimens are tested in the rut tester and the results from each test wheel are averaged to provide an average rut depth value. J sub nr values were determined based on the Multistress Creep and Recovery test. The experimental work performed is described in this paper.
Publication Year: 2010
Publication Date: 2010-12-01
Language: en
Type: article
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Cited By Count: 8
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