Language selection

Government of Canada / Gouvernement du Canada

Search

Effect of differential thermal contraction on fracture toughness of asphalt materials at low temperatures

From National Research Council Canada

Download
  1. (PDF, 1.3 MiB)
AuthorSearch for: ; Search for: 1
Affiliation
  1. National Research Council of Canada
FormatText, Article
SubjectRoads/Pavement; Roads
Abstract
This study investigates the influence of differential thermal contraction on known fracture properties of asphalt concrete. The study hypothesis is that hairline cracks will develop in a mixture subjected to a sufficiently low temperature and that fracture toughness of the mixture will be substantially lowered. The objective of this study was to evaluate fracture toughness of asphalt concrete as affected by exposure to low temperatures. Fracture behavior of asphalt cement and asphalt-filler mixture were evaluated and compared with that of asphalt concrete. This paper presents the laboratory test procedures developed for fracture toughness applied to asphalt materials using the quasi-static three-point bending test setup and conducted at various low temperatures using materials common to Ontario, Canada.
Publication date
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 42792
NRC-IRC-9358
NPARC number20331236
Export citationExport as RIS
Report a correctionReport a correction (opens in a new tab)
Record identifier66b21eb4-f3fc-4b9a-8f7f-7c024b79392c
Record created2012-07-18
Record modified2020-04-29
Date modified: