AASHTO TP 70-12

Standard Method of Test for Multiple Stress Creep Recovery (MSCR) Test of Asphalt Binder Using a Dynamic Shear Rheometer (DSR)

American Association of State Highway and Transportation Officials , 2012

Publisher: AASHTO

File Format: PDF

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Description

Standard By:American Association of State Highway and Transportation Officials , 2012

Published:2012

Pages:8

File Size:1 file , 850 KB

Language:English

Note:This product is unavailable in Ukraine, Russia, Belarus

This test method covers the determination of percent recovery and non-recoverable creep compliance of asphalt binders by means of the Multiple Stress Creep Recovery (MSCR) test. The MSCR test is conducted using the Dynamic Shear Rheometer (DSR) at a specified temperature. It is intended for use with residue from T 240 (Rolling Thin-Film Oven Test (RTFOT)). The test method may also be run on residue from R 28 (Pressurized Aging Vessel (PAV)).Note 1 - The majority of the development work on this test method was performed on material conditioned according to T 240 (RTFO). The test may be run on unaged binder or on residue from R 28 (Pressure Aging Vessel). However, the performance relationship of results from aging conditions other than T 240 are yet to be developed.The percent recovery value is intended to provide a means for determining the elastic response and stress dependence of polymer modified and unmodified asphalt binders.