高弹性橡胶玛蹄脂应力吸收带的抗反射裂缝疲劳性能研究

Fatigue Performance on Anti-reflective Cracking of High Elasticity Rubber Mastic Stress-absorbing Band

采用大比例尺反射裂缝疲劳试验,对比分析了高弹性橡胶玛蹄脂应力吸收带、聚酯玻纤布、SAMPAVE应力吸收层3种反射裂缝防治措施的温度疲劳、荷载疲劳性能,并根据实体工程进行了验证。结果表明,采用橡胶玛蹄脂应力吸收带局部处治旧混凝土路面的加铺结构的荷载疲劳性能最优,温度疲劳性能与设置SAMPAVE应力吸收层的加铺结构相当。同时,采用橡胶玛蹄脂应力吸收带的经济性最优。

Throughfull-scale fatigue test on anti-reflective cracking, an comparison study of the ability to resist the temperature fatigue and load fatigue was performed among high elasticity rubber mastic stress-absorbing band, fiberglass- polyester paving mat and SAMPAVE stress-absorbing layer, which were technologies to prevent reflection cracking. And they were verified by engineering. The results suggest that the overlay structures with the old cement concrete pavement partially treated with high elasticity rubber mastic stress-absorbing band are of the best fatigue performance to prevent re- flection crack caused by load, and its temperature fatigue performance is equivalent to the overlay including SAMPAVE stress-absorbing layer. At the same time, rubber mastic stress-absorbing band is the most economical way.