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Proceedings Paper

Evaluation of low temperature properties of warm mix asphalt
Author(s): Jin Wen; Zhifei Liu; Shaopeng Wu
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Paper Abstract

Warm mix asphalt (WMA), which reduces the mixing and compaction temperature of conventional hot mix asphalt (HMA), is becoming an attractive paving material. It is critical to identify the low temperature properties of warm mix asphalt. In this study, the three-point bending, bending creep tests and indirect tensile tests were conducted to test the low-temperature properties of warm mix asphalt as well as the conventional hot mix asphalt, which was used as the control mixture. Sasobit and Aspha-min were used as additives for warm mix asphalt, which was mixed and compacted lower than the traditional hot mix asphalt about 25°C; dosages accounted for 3% of asphalt, and 0.3% of mixture, respectively. The results of bending strength, bending modulus, and creep rate indicate that warm mix asphalt using Sasobit and Aspha-min slightly affects the resistance property to cracking compared with the conventional hot mix asphalt. The results suggest that the warm mix asphalt can maintain the low temperature properties of hot mix asphalt.

Paper Details

Date Published: 14 April 2010
PDF: 8 pages
Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 752243 (14 April 2010); doi: 10.1117/12.851590
Show Author Affiliations
Jin Wen, Wuhan Univ. of Technology (China)
Zhifei Liu, Wuhan Univ. of Technology (China)
Shaopeng Wu, Wuhan Univ. of Technology (China)

Published in SPIE Proceedings Vol. 7522:
Fourth International Conference on Experimental Mechanics
Chenggen Quan; Kemao Qian; Anand Krishna Asundi; Fook Siong Chau, Editor(s)

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