Advanced Search

Journal Navigation

Journal Home

Subscriptions

Archive

Contact Us

Table of Contents

Sign In to gain access to subscriptions and/or personal tools.
Journal of Elastomers and Plastics
This Article
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
0095244309104462v1
41/5/401    most recent
Right arrow References
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via Scopus
Google Scholar
Right arrow Articles by Othman, A. M.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati   Add to Twitter  
What's this?

Effect of Moisture-induced Damage on Fracture Resistance of Rubber-modified HMA Mixtures

Ayman M. Othman

Civil Engineering Department, Aswan Faculty of Engineering South Valley University, Aswan, Egypt, ay_othman{at}mail.com

The impact of moisture-induced damage on the fracture resistance of rubber-modified hot mix asphalt (HMA) mixture as determined by the critical energy release rate (Jc) was investigated. Crumb rubber content of 15% by weight of binder was adapted. Semi-circular core specimens (76 mm radius and 57 mm thickness) were used for fracture resistance tests. An accelerated moisture damage program was established to evaluate the mixture resistance to moisture damage. Tested specimens were immersed in a water bath at a controlled temperature of 25°C under vacuum of 510 mm Hg at different moisture treatment periods of 0, 1, 2, and 7 days. A relationship between the moisture treatment period and the critical energy release rate was determined. The current investigation revealed a reduction on the fracture resistance and mechanical performance of the moisture treated mixtures. The reduction increased with the increase of moisture treatment period. The results also indicated significant improvement in mix stability, strength, and resistance to fracture and moisture damage when crumb rubber was applied to HMA mixtures.

Key Words: fracture resistance • crumb rubber • HMA mixtures • moisture damage • critical energy release rate • indirect tensile strength • unconfined compressive strength • Marshall stability.

This version was published on September 1, 2009

Journal of Elastomers and Plastics, Vol. 41, No. 5, 401-414 (2009)
DOI: 10.1177/0095244309104462
Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati   Add to Twitter Twitter    What's this?