SMA的GTM设计方法、路用性能及施工工艺

成型方式对设计的沥青混合料路用性能影响极大。现行SMA(沥青玛蹄脂碎石混合料)设计方法有很大的缺陷,为此提出新的SMA设计方法———GTM(旋转试验机)法。根据这种方法设计的SMA混合料密度高。室内试验及施工结果表明此种混合料有很好的高温、低温、抗水破坏及抗滑性能。文章最后介绍了SMA施工方法。

On GTM Design Method, Road Performance and Construction Process of SMA

Formation type is of great importance for road performance of designed asphalt mixture. However, there are serious defects existing in conventional SMA design method, and a new SMA design method-GTM has been proposed. SMA mixture made in this method has a high density. Laboratory tests and construction results show that the mixture is of good ability in aspects of heat && cold resistance, water resistance and clinging property. The SMA construction method is also introduced here.