Abstract:In order to study the anti-reflective crack performance of stress-absorption interlayer (SAI),the Overlay Test(OT) was used to determine the anti-reflective cracking performance of SBS,WTR and WTR/APAO modified asphalt SAI under standard conditions,after moisture damage and long-term aging. The research shows that the cycle number,reduction in load and total fracture energy can characterize the anti-reflective cracking performance of SAI. The maximum load in the first cycle and critical fracture energy are indicators for evaluating initial cracking. It is found that three stress-absorption interlayers have good anti-reflective cracking performance under standard conditions. However,the moisture damage has a great influence on the crack resistance of WTR/APAO. The anti-reflective cracking performances of WTR and WTR/APAO are greatly reduced after long-term aging. The OT maximum load-cycle number curve of three SAIs is in accordance with power function.