掺加PR系列添加剂对沥青混合料路用性能的影响

车辙试验和恒定高度重复剪切试验（RSCH）结果的对比分析表明，车辙试验不适合用来评价掺加PR系列添加剂混合料的高温性能；而RSCH所得到的k1，k2，N和γ各个指标呈现出较好的相关性和一致性，并能对掺加PR系列添加剂混合料的高温性能进行评价．RSCH试验结果表明，就高温抗剪性能而言，掺加PRPLASTS添加剂（PR．S）混合料最好，掺加PRFLEXMODULE添加剂（PR．M）混合料次之，未掺加PR系列添加剂混合料最差．各种路用性能试验结果表明，掺加PR系列添加剂造成了混合料水稳性能和低温性能的小幅下降，却较大幅度地提高了混合料的高温性能，适合于在重载高温的情况下采用．

Impacts on asphalt mixture's pavement performance with the addition of additives of PR series

The results of rutting test and repeated shear test （constant height） （RSCH） show that rutting test is not suitable for the high temperature performance evaluation of asphalt mixture with the addition of additives of PR series. RSCH, such as k1 ,k2 ,N and T, is with good consistency, so RSCH is suitable for the high temperature performance evaluation of asphalt mixture with the addition of PR series additives. The results of RSCH show that, asphalt mixture with the addition of PR PLAST S （PR. S） has the best performance, the PR FLEX MODULE （ PR. M） one is better, and the original one is the worst. The results of all the pavement per- formanee test show that, although the immersion stability and the low temperature performance were appropriately decreased, the high temperature performance was greatly fion of additives of PR series is suitable for the heavy-loaded improved, so the asphalt mixture with the addiand high-temperature area.