A Comparative Study of Fatigue Performance to Resist Reflective Cracking Among Three Different Stress-absorbing Materials

摘要

Through full-scale fatigue test, a comparative study of the ability to resist 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 reflection 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.