The Research of Low Temperature Performance of Asphalt Mixture

Abstract:

To address Superpave graded and AC graded asphalt mixture, bending test at low temperature and thermal stress restrained sample tests are used respectively to evaluate the low temperature performance of asphalt mixture. Meanwhile, contrast analysis of the two test methods and the low temperature performance of two asphalt mixture are studied, too. The results show that Superpave method can effectively improve low temperature perfomance of asphalt mixture. In the thermal stress restrained sample tests, freezing temperature and transition point temperature can evaluate the low temperature cracking resistance of Superpave asphalt mixture well. In bending test at low temperature, bending strain energy density should be considered as evaluation index to the characterization for low temperature performance of asphalt mixture. That also closely meets the result of the rmal stress restrained sample tests.

• Periodical: Advanced Materials Research (Volumes 168-170)
• Pages: 2507-2512
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.168-170.2507
• Online since: December 2010
• Authors: Cai Li Zhang, Lian Yu Wei, Qing Ying Meng
• Keywords: Asphalt Mixture (AC), Bending Strain Energy Density, Bending Test at Low Temperature, Low-Temperature Crack Resistance, Thermal Stress Restrained Sample Tests

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