贵州贵阳电动伸缩门匠心厂

1、减少流动性变形车辙

1, reduce the flow deformation rutting

国内普遍存在的是高温季节重载作用下的混合料流动变形车辙，尤其是强基薄面的结构设计，加剧了增加剪切流动变形，因此对沥青的高温性能提高了要求；采用高粘沥青在突出提升抗高温能力的前提下兼具全面优良的特征，而且作为一种值得优选的路面材料，还能为消除国内普遍存在的车辙现象作出有效的贡献。

The prevailing domestic is mixture flow in high temperature season under heavy load rutting deformation, especially strong foundation and thin surface structure design, exacerbated by the increase of shear flow deformation, so the high temperature performance of asphalt improved requirements; excellent comprehensive characteristics of both the premise of high viscosity asphalt high temperature tolerance in a prominent promotion, but also as a the pavement material is preferred, can make an effective contribution to the elimination of rutting phenomenon in china.

2、改善路面松散

2, improve the road surface loosening

松散由水损害引起。传统的松散发生于表面，松散的发展形成坑槽，坑槽严重影响行车的舒适性，而且由于车轮的冲击，会加速坑槽的扩大，特别是雨天更加快了坑槽的发展。采用高粘度改性沥青，其混合料路面可有效提高抗水害能力，原因要有两方面：

Loose caused by water damage. The traditional loose hair on the surface, the formation of loose pit pit, serious impact on driving comfort, but also because of the wheel impact extension will accelerate the pit, especially on rainy days more to accelerate the development of the pit. Using high viscosity modified asphalt, its mixture pavement can effectively improve the ability to resist water disaster, there are two reasons:

（1）高粘度沥青与集料表面的机械粘附力大；

(1) the mechanical adhesion of the high viscosity asphalt and aggregate surface is great;

（2）在混合料配合比设计时，沥青用量可选取马歇尔试验最佳沥青用量的上限甚至还可多一点，只要抗高温变形的能力足够，沥青用量多一点，沥青就膜厚一点，不但低温抗裂性能够增强，而且路面的压实度提高了，空隙率减小了，水不易侵入，从而防止了水对于中下面层及基层的损害；同时提高了面层的强度；减小了光和空气对于沥青的老化作用。

(2) in the mix design, the asphalt content can choose the Marshall test the optimum asphalt content limit even more, as long as the ability of resistance to deformation at high enough, the asphalt content more, asphalt film thickness, not only the low temperature crack resistance can be enhanced, and the pavement compaction degree increased. The decrease of porosity, water is not easy to invade, so as to prevent water damage for the below layer and the base; and the surface layer strength increased; reduce the light and air for the effects of aging asphalt.