掺加拓博琳TMLT-6改性剂的SMA混合料性能

Performance Study of SMA Mixture with Topoline TMLT-6 Modifier

为探究添加了拓博琳TMLT-6改性剂的70#道路石油沥青SMA混合料的路用性能.通过室内试验,采用冻融劈裂试验、车辙试验以及小梁弯曲试验,测试其水稳定性、高温稳定性和低温抗裂性能.试验结果表明:拓博琳TMLT-6全效高性能改性剂能够显著提高70#道路石油沥青SMA混合料的高温稳定性和低温抗裂性,并使其水稳定性有所改善.在SMA道路施工中添加拓博琳TMLT-6改性剂来改善其路用性能具有一定的实际意义.

In order to explore the road performance of SMA mixture with Topoline TMLT-6 modifier,rutting test,bending-beam test and frost thawing and splitting test were conducted to evaluate its water stability,high temperature stability and crack resistance at low temperature. Test result indicates that the high temperature stability and crack resistance in low temperature of the SMA mixture with TopolineTMLT-6 modifier increases obviously,but its changes of water stability is not significant. The addition of the TopolineTMLT-6 modifier in SMA road construction to improve its road performance has a certain practical significance.