Fatigue Resistance and Crack Propagation Evaluation of a Rubber-Modified Gap Graded Mixture in Sweden
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.
KeywordsFatigue Life Crack Growth Rate Asphalt Mixture Asphalt Concrete Crack Propagation Evaluation
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- 1.Tangella, S.R., Craus, J., Deacon, J.A., Monismith, C.L.: Summary Report of Fatigue Response of Asphalt Mixtures, Technical Memorandum No. TM-UCB-A-003A-89-3M, prepared for SHRP Project A-003A, Institute of Transportation Studies, University of California, Berkeley (1990)Google Scholar
- 2.Kaloush, K.E., Biligiri, K.P., Zeiada, W.A., Rodezno, M.C., Souliman, M.I.: Laboratory Pavement Performance Evaluation of Swedish Gap Graded Asphalt Concrete Mixtures – Malmo E-06 Highway, Final Report Submitted to Swedish Road Administration, Vägverket, 405 33 Göteborg, Kruthusgatan 17, Sweden (2008)Google Scholar
- 3.Nordgren, T., Preinfalk, L.: Asphalt Rubber - a new concept for asphalt pavements in Sweden? Progress report, Swedish Transport Administration, 405 33 Gothenburg, Sweden (February 2009)Google Scholar
- 4.Kaloush, K.E., Biligiri, K.P., et al.: Laboratory Evaluation of Rubber & Polymer Modified Bituminous Mixtures Constructed in Stockholm (E18 Highway between the Järva Krog & Bergshamra Interchanges), Final Report Submitted to Swedish Transport Administration, Vägverket, 405 33 Göteborg, Kruthusgatan 17, Sweden (2010) (December 2009/January 2010)Google Scholar
- 5.Harvey, J., Monismith, C.L.: Effect of Laboratory Asphalt Concrete specimen Preparation Variables on Fatigue and Permanent Deformation Test Results Using Strategic Highway Research Program A-003A Proposed Testing Equipment, Record 1417, Transportation Research Board, Washington, DC (1993)Google Scholar
- 6.Tayebali, A.A., Deacon, J.A., Monismith, C.L.: Development and Evaluation of Surrogate Fatigue Models for SHRP, A-003A Abridged Mix Design Procedure. Journal of the Association of Asphalt Paving Technologists 64, 340–366 (1995)Google Scholar
- 7.Witczak, M.W., Mamlouk, M., Abojaradeh, M.: Flexural Fatigue Tests, NCHRP 9-19, Subtask F6 Evaluation Tests, Task F Advanced Mixture Characterization. Interim Report, Arizona State University, Tempe, Arizona (2001)Google Scholar
- 8.American Association of State Highway and Transportation Officials, Determining the Fatigue Life of Compacted Hot-Mix Asphalt (HMA) Subjected to Repeated Flexural Bending. Test Method T321-03, AASHTO Provisional Standards, Washington, DC (2003)Google Scholar
- 9.Landes, J.D., Begley, J.: A fracture mechanics approach to creep crack growth. Mechanics of Crack Growth. In: Proceedings of the Eighth National Symposium on Fracture Mechanics, vol. 590, pp. 128–148 (1976)Google Scholar
- 10.Abdulshafi, O.: Rational Material Characterization of Asphaltic Concrete Pavements, Ph.D. Dissertation, Ohio State University, Columbus, OH (1983)Google Scholar
- 11.Abdulshafi, A., Kaloush, K.E.: Modifiers for Asphalt Concrete. ESL-TR-88-29, Air Force Engineering and Services Center, Tyndall Air Force Base, Florida (1988)Google Scholar
- 12.Viman, L.: Rubber asphalt – laboratory experiments. VTI (Swedish National Road and Transport Research Institute). SE-581 95 Linköping Sweden (2009), http://www.vti.se/sv/publikationer/gummiasfaltlaboratorieforsok/