Differential thermal expansion and contraction: a mechanistic approach to adhesion in asphalt concrete

Download
  1. (PDF, 946 KB)
  2. Get@NRC: Differential thermal expansion and contraction: a mechanistic approach to adhesion in asphalt concrete (Opens in a new window)
AuthorSearch for: ; Search for:
TypeArticle
Journal titleCanadian Journal of Civil Engineering
Volume20
Issue3
Pages366373; # of pages: 8
SubjectRoads; Roads/Pavement; Roads
AbstractThis paper introduces a simple mechanistic approach that describes the response of the asphalt-aggregate system to temperature changes. The concept recognizes the thermal incompatibility between asphalt cement and aggregate. Owing to the considerable difference in the coefficients of thermal expansion of aggregate and asphalt, the asphalt matrix will attempt to contract more than the aggregate during thermal cooling. An analytical model was derived to estimate the thermally induced stresses resulting from differential thermal contraction. The experimental investigation which is part of a study investigating adhesion, verified the findings of the analytical approach. Findings from this study explained field and laboratory observations made earlier by other investigators. These observations were associated with asphalt concrete low-temperature performance and its resistance to stripping.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
NRC number40316
2948
NPARC number20375897
Export citationExport as RIS
Report a correctionReport a correction
Record identifier411bf2f8-5c81-4b38-bdba-eddbadbeaec2
Record created2012-07-23
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)