00815912

Monograph

http://onlinepubs.trb.org.../NCHRP055_Final_Report.pdf

This Innovations Deserving Exploratory Analysis (IDEA) project developed a surface plate type method for measuring the in-situ shear strength of asphalt pavements. The method involves applying a torque directly to the asphalt pavement surface and relating the maximum applied torque to the shear strength of the asphalt pavement layer. A preliminary design of a second-generation shear test device was prepared and evaluated. A framework for a set of analytical models to predict pavement performance based on field shear data was developed. Based on test results, the final design of the shear test device was developed and further refined. The final design system was then fabricated and shakedown testing was performed to ensure that all components of the test system functioned properly. Field testing of the prototype system continues on asphalt pavements in the U.S. and Canada.

This NCHRP-IDEA investigation was conducted by Carleton University, Ottawa, Ontario, Canada. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

NCHRP-IDEA Project 55

NCHRP-55

English

27 p.

2001-8

NCHRP-IDEA Program Project Final Report

9902-0008

Figures (11) ; Photos (2) ; References; Tables (2)

Asphalt concrete pavements; Equipment design; Prototype tests; Shakedown tests; Shear strength; Technological innovations; Testing equipment; Torque

National Cooperative Highway Research Program

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces

TRIS, TRB

Aug 29 2001 12:00AM