Study on Critical Fracture Criterion of Asphalt Mixture Based on the Semi-Circular Bending Test

Abstract:

Crack resistance is an important indicator to evaluate asphalt mixture performance, so the critical fracture criterion of asphalt mixture was deeply studied based on semi-circular bending test under different temperature. The results show that Semi-circle bending test is suitable to evaluate the crack resistance of asphalt mixture; fracture toughness Jc is a more reasonable indicator of the fracture criterion for asphalt mixture than Kc; The fracture toughness calculation model of single specimen built in this paper can simplify the semi-circular bending test operation, and can reduce the number of test specimens.

• Periodical: Applied Mechanics and Materials (Volumes 178-181)
• Pages: 1488-1494
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.178-181.1488
• Online since: May 2012
• Authors: Yu Liu, Jing Li, Xiao Ning Zhang
• Keywords: Calculation Model, Critical Fracture Criterion, Semi-Circle Bending Test

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