Research on mechanical characteristics of conductive asphalt concrete by indirect tensile test

Shaopeng Wu; Yuan Zhang; Mingyu Chen

doi:10.1117/12.851473

14 April 2010 Research on mechanical characteristics of conductive asphalt concrete by indirect tensile test

Shaopeng Wu, Yuan Zhang, Mingyu Chen

Proceedings Volume 7522, Fourth International Conference on Experimental Mechanics; 752265 (2010) https://doi.org/10.1117/12.851473
Event: Fourth International Conference on Experimental Mechanics, 2009, Singapore, Singapore

Abstract

Conductive asphalt concrete is a functional composite that is composed of regular asphalt concrete and a certain amount of conductive components. In this paper, conductive asphalt concrete has been prepared by adding graphite and carbon fiber to regular asphalt concrete. The combination function of graphite and carbon fiber has obvious advantages in the conductivity improvement. Mechanical characteristics of conductive asphalt concrete have been specially studied by indirect tensile test, which includes indirect tensile strength (ITS), indirect tensile resilient modulus (ITRM) and indirect tensile fatigue (ITF) tests. The ITS test results indicate that conductive asphalt concrete shows higher values of indirect tensile strength than regular asphalt concrete, but lower values of indirect tensile strength ratio. Then, we conclude from ITRM test that the addition of conductive components increases indirect tensile resilient modulus of asphalt concrete. Furthermore, the results of ITF test show that fatigue life (load cycle times) of conductive asphalt concrete have been enhanced compared to regular asphalt concrete at higher stress levels.

Citation Download Citation

Shaopeng Wu, Yuan Zhang, and Mingyu Chen "Research on mechanical characteristics of conductive asphalt concrete by indirect tensile test", Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 752265 (14 April 2010); https://doi.org/10.1117/12.851473

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