Sasobit温拌排水沥青混合料路用性能研究

Study on Pavement Performance of Warm Mix Asphalt Mixture

为研究Sasobit温拌排水沥青混合料的各项路用性能,在OGFC-13型沥青混合料中掺加Sasobit温拌剂制备成温拌排水沥青混合料,通过击实马歇尔试验确定其最佳成型温度,并通过室内试验对温拌排水沥青混合料和热拌排水沥青混合料的高温稳定性、低温抗裂性、水稳定性性能和老化性能进行对比研究。结果表明:Sasobit温拌剂降温效果较好,相比于热拌排水沥青混合料,温拌排水沥青混合料击实温度可以降低25℃;温拌沥青混合料的各项路用性能与热拌排水混合料接近。

In order to study various pavement performances of Sasobit warm mix porous asphalt mixture, the Sasobit warm mix agent is added in OGFC-13 asphalt mixture to prepare the warm mix porous asphalt mixture. The optimum forming temperature is determined by Marshall Compaction Test. the high temperature stabilities, low temperature crack resistances, water stability performances and aging performances of warm mix porous asphalt mixture and hot mix porous asphalt mixture are compared and studied. The results show that Sasobit has good cooling effect. Compared with hot mix porous asphalt mixture, the compaction temperature of warm mix porous asphalt mixture can reduce 25℃. Various pavement performances of warm mix porous asphalt mixture are close to hot mix porous asphalt mixture.