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Title: REDUCING THE ADVERSE EFFECTS OF TRANSVERSE CRACKING
Accession Number: 00459474
Record Type: Component
Availability: Find a library where document is available Abstract: This research was initiated to identify methods of reducing the occurrence of transverse cracking. Eight (four repetitive) research sections were established to study three variations in the asphalt concrete pavement. The first variation was the comparison of low- and high-temperature-susceptible asphalt cement (AC) from two different sources. The second variable was to saw and seal transverse joints at spacings varying from 40 to 100 ft. The third variable was to increase the AC content in the asphalt treated base by 1 percent. The research sections were constructed with relatively few problems. Crack and joint surveys have been conducted on all research sections at intervals of less than 1 year since construction. No cracking was identified after the first winter season. The sawed joints also remained sealed through the first winter. At an age of approximately 1 1/2 years there was substantial cracking of the high-temperature-susceptible AC sections and substantial failure of the sealant material in the sawed joints. After almost 4 years, the asphalt pavement constructed with the high-temperature-susceptible AC produced a crack interval of 35 ft, the low-temperature-susceptible AC yielded an interval of 170 ft, and the low-temperature-susceptible AC with an increased AC content yielded an interval of 528 ft. The Pen-Vis number is an effective measure of temperature susceptibility of asphalt cements. The frequency of transverse cracking is affected by the temperature susceptibility of the AC. An increased AC content also reduces the frequency of transverse cracking.
Supplemental Notes: Publication of this paper sponsored by Committee on Flexible Pavement Construction. 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 #: 01419475
Authors: Marks, Vernon JHuisman, Charles LEditors: Kaplan, Elizabeth WPagination: pp 80-86
Publication Date: 1985
Serial: ISBN: 0309039509
Media Type: Print
Features: Figures
(3)
; References
(2)
; Tables
(5)
TRT Terms: Old TRIS Terms: Subject Areas: Construction; Highways; Materials; I31: Bituminous Binders and Materials
Files: TRIS, TRB
Created Date: Oct 31 1986 12:00AM
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