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SMA路面结构目前在我国正处于试验、推广阶段,它有助于解决路面的抗车辙、抗疲劳、抗滑、低噪音等。但它在施工中经常出现渗水、油斑、横向缩裂、空隙率大小不均匀、混合料易产生离析等问题。本文对这些病害的成因进行了分析,并指出要解决这些问题,保证施工质量,在施工中应控制以下环节:做好预先试验检测、把好材料进场关、严格控制矿科级配和油石比、采用好的拌合设备及摊铺、碾压机具、加强检测。
SMA pavement structure is currently in our country is in the test, promotion stage, it helps to solve the road anti-rut, anti-fatigue, anti-skid, low noise and so on. However, it often appears in the construction of water seepage, oil spots, transverse shrinkage, porosity, uneven size, the mixture is prone to segregation and other issues. This paper analyzes the causes of these diseases and points out that in order to solve these problems and ensure the quality of construction, we should control the following links during the construction: do well in advance test and test, put the good materials into the customs, strictly control the grade of ore and stone Than using a good mixing equipment and paving, rolling equipment, strengthen testing.