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一、概 况 渣油石灰砂表面处治(简称油灰砂表处),是以天然砂为骨料,以渣油为结合料,内掺少量消石灰粉作填充料,三者按适当的比例(重量比)配合,在适宜的气温下,经拌和(人工或机械)均匀摊铺在各种不同的路面基层上,经过辗压成型的一种路面面层结构。它属于表处型薄层路面,直接与大气接触,承受行车的各种作用力,起着保护路面基层的作用,可以说是路面的稳定保护层和磨耗层。它是继渣油碎(砾)石表处、渣油石灰土表处之后的又一新的油路表处型结构。可适用于缺少石料而盛产砂子的地区,是发展油路的一种良好的路面结构型式。
First, an overview Residue lime sand surface treatment (referred to as oil sand surface), is the natural sand as the aggregate, the residue as a binder material, with a small amount of hydrated lime powder as filler, three at an appropriate ratio (weight ratio ) With the appropriate temperature, by mixing (artificial or mechanical) evenly spread on a variety of road base, after rolling forming a pavement structure. It belongs to the table-type thin layer of pavement, direct contact with the atmosphere, to withstand the driving force, plays a role in protecting the grassroots, can be said that the road surface of the protective layer and wear layer. It is following the residue (gravel) stone surface, residual lime stone surface after another new oil road surface structure. Can be applied to the lack of stone and rich sand area, is the development of a good road pavement structure.