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Title:

On the Importance of Monitoring Temperature in Friction Testing Devices

Accession Number:

01518324

Record Type:

Component

Availability:

Transportation Research Board Business Office

500 Fifth Street, NW
Washington, DC 20001 United States

Abstract:

It is well known that the temperature has an influence on the rubber friction on Asphalt Concrete (AC) surfaces. Several studies have been conducted in order to investigate the effect of the pavement temperature or the ambient temperature on friction but no experimental studies have tried to investigate the temperature variation in the rubber body and correlate this variation with the frictional properties. Both in situ and in the lab, the test conditions (pressure applied, slip speed, pavement temperature) dictate the generation of heat and hence the development of temperature in the body of the tire rubber. The generated heat depends on the test protocol (time, ramp speed, etc.). Currently available friction testing apparatus does not monitor temperature and therefore does not allow for the evaluation of the interaction between slip speed, pressure and temperature on friction. In order to tackle this problem, a Skid Resistance Interface Testing Device (SR-ITD® 14 ) has been designed for the study of the influence and the interaction of the various phenomena occurring at the rubber-stone/AC mixes/cement concrete interface. The device enables various combinations of slip velocity and pressure to be applied with concurrent measurement of temperature in the interface regions. By a combination of laboratory SR-ITD tests and a thermomechanical friction prediction model (M2D), a formalistic expression has been developed for description of the interdependency between friction, pressure, speed and temperature. The advantage of the model is that it enables determination of the friction independent of test conditions.

Supplemental Notes:

This paper was sponsored by TRB committee AFK40 Characteristics of Asphalt-Aggregate Combinations to Meet Surface Requirements. Alternate title: Importance of Monitoring Temperature in Friction Testing Devices.

Monograph Accession #:

01503729

Report/Paper Numbers:

14-4023

Language:

English

Corporate Authors:

Transportation Research Board

500 Fifth Street, NW
Washington, DC 20001 United States

Authors:

Villani, M M
Scarpas, A
Khedoe, R
de Bondt, A
Spieard, F
Kasbergen, C

Pagination:

15p

Publication Date:

2014

Conference:

Transportation Research Board 93rd Annual Meeting

Location: Washington DC
Date: 2014-1-12 to 2014-1-16
Sponsors: Transportation Research Board

Media Type:

Digital/other

Features:

Figures; Photos; References; Tables

Subject Areas:

Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials

Source Data:

Transportation Research Board Annual Meeting 2014 Paper #14-4023

Files:

TRIS, TRB, ATRI

Created Date:

Jan 27 2014 3:23PM