Fatigue resistance and crack propagation evaluation of a rubber-modified gap graded mixture in Sweden

Waleed Zeiada, Mena Souliman, Jeffrey Stempihar, Krishna P. Biligiri, Kamil Kaloush, Safwat Said, Hassan Hakim

Research output: Chapter in Book/Report/Conference proceedingChapter

1 Scopus citations

Abstract

The main purpose of this study was to document the laboratory experimental program results conducted at Arizona State University (ASU) and the Swedish National Road and Transportation Research Institute (VTI) to obtain material properties and performance characteristics for a "reference-gap", "polymer-modified gap", and "rubber-modified gap" graded mixtures placed on the Swedish Malmo E6 Highway. The advanced material characterization tests of interest to this paper included: bending beam for fatigue cracking evaluation and C* line integral test along with Wheel Tracking Tests (WTT) to evaluate crack propagation. The test results were used to compare the performance of the rubber- modified gap graded mixture to a polymer-modified as well as a reference-gap mixture. The results showed that the expected fatigue life for the rubber-modified gap graded mixture was the highest followed by the polymer-modified and then the reference-gap mixture. Furthermore, the crack propagation test results showed that the rubber-modified gap graded mixture had higher resistance to crack propagation; also, it was observed that rubber-modified mix satisfied Swedish requirements of the corresponding wear layer coatings. To make an overall assessment and verify the laboratory results, it was recommended to conduct a multi-year continuous field monitoring and laboratory evaluation of the test sections.

Original languageEnglish (US)
Title of host publication"7th RILEM International Conference on Cracking in Pavements
Subtitle of host publicationMechanisms, Modeling, Testing, Detection,Prevention and Case Histories
EditorsA.(Tom) Scarpas, Niki Kringos, Imad L. Al-Qadi, Andreas Loizos
Pages751-760
Number of pages10
StatePublished - Dec 1 2012

Publication series

NameRILEM Bookseries
Volume4
ISSN (Print)2211-0844
ISSN (Electronic)2211-0852

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials

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