Investigation of fatigue properties of granite asphalt mixtures containing hydrated lime

Shaopeng Wu; Xu Huang

doi:10.1117/12.851455

14 April 2010 Investigation of fatigue properties of granite asphalt mixtures containing hydrated lime

Shaopeng Wu, Xu Huang

Proceedings Volume 7522, Fourth International Conference on Experimental Mechanics; 75221E (2010) https://doi.org/10.1117/12.851455
Event: Fourth International Conference on Experimental Mechanics, 2009, Singapore, Singapore

Abstract

This paper presents the results of a laboratory study of evaluating the fatigue characteristics of granite asphalt mixtures (GAM) using different testing methods. In the study, the fatigue performances of GAM were evaluated with Superpave indirect tensile test (IDT) and four-point beam fatigue test. Specimens were conditioned by four different methods: (1) one cycle of freeze-thaw (F-T), (2) two cycles of F-T, (3) immersion in 60°C water bath for 30min (4) immersion in 60°C water bath for 48h, and contrastive analysis was made with unconditioned specimens. Investigation of moisture damage influence on the fatigue properties of GAM with and without Hydrated Lime (HL) was done. The results from this study indicated that both Superpave IDT and four-point beam fatigue test agreed with each other in ranking the fatigue property of GAM. Increasing F-T cycles or immersion time would decrease fatigue life in GAM, and the addition of HL was effective to prolong the fatigue life in GAM.

Citation Download Citation

Shaopeng Wu and Xu Huang "Investigation of fatigue properties of granite asphalt mixtures containing hydrated lime", Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75221E (14 April 2010); https://doi.org/10.1117/12.851455

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