富油型AC-10应力吸收层的路用性能研究

Study on Pavement Performance of Oil-rich AC-10 Stress Absorbing Layer

为研究不同性能的沥青和油石比对富油型AC-10应力吸收层的影响,对不同沥青种类及油石比的沥青混合料试件的析漏损失率、高温稳定性、低温抗裂性及水稳定性进行性能验证,试验结果表明:提高油石比可以有效增强应力吸收层的低温性能及水稳定性;使用专用高黏高弹改性沥青后,应力吸收层的高温、低温性能及水稳定性得到全面提高。

In order to study the influence of properties of asphalt and asphalt-aggregate ratio on oil-rich AC-10 stress absorbing layer,the run-off loss ratio,high-temperature stability,low-temperature anti-cracking ability,and moisture susceptibility were tested with different asphalt types and asphalt-aggregate ratios.The test results show that increasing asphalt-aggregate ratio can effectively improve the low-temperature performance and moisture susceptibility of the stress absorbing layer.By using special high-viscosity and high-elasticity asphalt,the high-temperature and low-temperature performance,as well as moisture susceptibility of the stress absorbing layer will all be strengthened.