Research on the Fracture Resistance of Asphalt Mixture Based on Cohesion Zone Model

摘要

Cohesion and crack opening displacement based on cohesive zone model were employed to evaluate the fracture resistance of asphalt mixture of SMA-13、AC-13 and CAM at 10°C、5°C、 0°C、-5°C、-10°C. Using fracture toughness, cohesion and crack opening displacement index to analyze the crack resistance property of three kinds of asphalt mixture, the test results is that anti-cracking performance of SMA-13 is optimal, the second is AC - 13 and CAM. So, Fracture energy and cohesion model test can reasonably evaluate anti-cracking performance of asphalt mixture.