01082889

Component

http://www.trb.org/Publications/Blurbs/159461.aspx

This paper describes how the indirect tension (IDT) strength test, when performed at high temperatures following the recommended protocol, can be used to evaluate the rut resistance of hot-mix asphalt (HMA) mixtures. The suggested procedure is simple, quick, and can be performed using a standard Marshall press without the need of a temperature control chamber. The paper includes a review of the initial development of the high-temperature IDT test, and also discusses how the new, rapid test procedure was developed. Improved guidelines for interpreting the results of the high-temperature IDT test are presented, which include a rule of thumb for accounting for differences in traffic speed. Two case studies are presented in which the IDT test was used to help ensure that HMA designs had sufficient rut resistance for their intended applications.

01082884

English

pp 62-77

2007-12

Transportation Research Circular

Web

Figures (5) ; Photos (1) ; References (14) ; Tables (9)

Asphalt mixtures; Case studies; High temperature; Hot mix asphalt; Mix design; Rutting; Traffic speed

Indirect tension test

Highways; Materials; I31: Bituminous Binders and Materials

TRIS, TRB

Dec 20 2007 11:38AM

• A Look at the Bailey Method and Locking Point Concept in Superpave Mixture Design
• Analysis of Oklahoma Mix Designs for the National Center for Asphalt Technology Test Track Using the Bailey Method
• Current Superpave Mix Design Practice: Survey of the User–Producer Regions
• Using the Superpave Gyratory Compactor to Estimate Rutting Resistance of Hot-Mix Asphalt