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Title: EFFECTS OF TEMPERATURE ON EARLY CRACK FORMATION IN PORTLAND CEMENT CONCRETE PAVEMENTS
Accession Number: 00637673
Record Type: Component
Availability: Find a library where document is available Abstract: Major distress problems of concrete pavements generally start with crack formation caused by the combined effects of traffic load and service temperature. Water and salt can easily infiltrate into pavement at the location of cracks and create durability and structural problems. Although crack formation has an important effect on the durability and structural capacity of concrete pavements, studies on the crack formation mechanisms in concrete are still limited to conventional stress-based or strain-based elasticity analysis because of the complexity of the problem. Recently because of the promising features of fracture mechanics-based models, fracture mechanics analysis on concrete structures is receiving more attention from researchers. A cohesive crack model was used to study the effect of temperature on crack formation in concrete pavements and to demonstrate the feasibility of fracture mechanics analysis on concrete pavement systems. It was found that the peak temperature differential that causes formation of random cracks in the pavement is sensitive to the age of the pavement; to properly control the occurrence of random cracking, saw-cut grooves should be introduced at the earliest possible age of the concrete pavement.
Supplemental Notes: This paper appears in Transportation Research Record No. 1388, Rigid and Flexible Pavement Design and Rehabilitation. 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
Monograph Title: Monograph Accession #: 01403222
Language: English
Authors: Jenq, Yeou-ShangLiaw, Chwen-JangKim, Sang-ChelPagination: p. 35-41
Publication Date: 1993
Serial: ISBN: 0309054575
Features: Figures
(12)
; References
(11)
; Tables
(1)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces
Files: TRIS, TRB, ATRI
Created Date: Sep 28 1993 12:00AM
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