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稀浆封层是在常温条件下将乳化沥青、级配矿料、填料、水及添加剂按一定的比例拌成糊状流动的混合料,并及时摊铺在路面上而形成的一层厚为0～13毫米的路面薄层,起到防水、防滑、耐磨、整平及恢复路面使用功能的作用。稀浆封层技术在沥青路面、砂石基层、水泥路面上均可使用,并能产生显著的经济效益和社会效益。普通稀浆封层一般厚度在2～13毫米范围内,最常用的为4～6毫米和6～8毫米,而采用聚合物改良稀浆封层厚度可达到50毫米,可用于高等级路面的养护与维修,无论采用那一种稀浆封层技术,必须要求原路基稳定坚固,旧路上施工时要求路面整体变形不大,平整度应在6mm以下。稀浆封层的类型及选择按骨料级配的粗细分为:Ⅰ型、Ⅱ型、Ⅲ型,其级配情况如
Slurry seal is a mixture of emulsified asphalt, grading mineral, filler, water and additives at a certain ratio under normal temperature conditions into a paste-like flowing mixture and paving it on the pavement in time to form a layer of thickness 0 ~ 13 mm pavement thin, play a waterproof, non-slip, wear-resistant, leveling and restore the function of the use of the road. Slurry sealing technology in asphalt pavement, gravel base, cement pavement can be used, and can have significant economic and social benefits. Ordinary slurry seal in the general thickness of 2 ~ 13 mm range, the most commonly used for 4 to 6 mm and 6 to 8 mm, and the use of polymer modified slurry seal thickness up to 50 mm can be used for high-grade road surface Maintenance and repair, regardless of the use of a slurry seal technology, the original subgrade must be stable and strong, the old road requires the overall deformation of the road is not large, flatness should be less than 6mm. Slurry seal type and choice by grading the size of the aggregate is divided into: Ⅰ type, Ⅱ type, Ⅲ type, the grading of such as