Paving method for tropical zone road surface

Abstract

The invention discloses a paving method for a tropical zone road surface. The paving method comprises the steps that 1, a subbase layer is renovated so as to meet the paving requirements for graded broken stone; 2, the subbase layer is paved with the graded broken stone; 3, after the effect that the graded broken stone is paved uniformly is ensured, the graded broken stone is compacted in a combination rolled mode to form a graded broken stone base layer; the compaction steps comprise that on the first day, the graded broken stone is subjected to initial rolling and re-rolling, in the first time re-rolling process, the graded broken stone is moisturized and then subjected to final rolling, and surface finishing and slurry purifying are conducted; and on the second day, the graded broken stone is re-rolled again; and 4, the surface of the graded broken stone is paved with bituminous concrete to form a surface layer. According to the paving method for the tropical zone road surface, the road surface structural design of combining the subbase layer and the graded broken stone base layer with the surface layer is adopted and has great advantages on the aspects that the reflection cracks of a tropical zone road which is located in a zone with long rainy season time and is prone to being damaged by water are prevented, the base layer can drain the water away quickly to prevent water damage, and the damage of the base layer is self-healed.

Description

technical field [0001] The invention relates to a highway pavement structure layer, in particular to a pavement laying method in tropical areas. Background technique [0002] In my country, semi-rigid asphalt pavement mainly adopts semi-rigid base, which is widely used and has mature technology, but semi-rigid asphalt pavement also has disadvantages: it is easy to crack, and after cracking, the cracks will be reflected to the road surface, so that rainwater will infiltrate and make the road suffer Rainwater damage, the semi-rigid base structure is dense and cannot quickly drain the crack water seeping down the pavement from the base, and there is no self-healing ability after damage. Although the research and application of the dense skeleton structure in recent years has improved the vitality of the application of semi-rigid bases, in general, there are relatively few practical applications of flexible bases such as graded crushed stone in China. Lack of full understanding,...

AI Technical Summary

Problems solved by technology

[0002] In my country, semi-rigid asphalt pavement mainly adopts semi-rigid base, which is widely used and has mature technology, but semi-rigid asphalt pavement also has disadvantages: it is easy to crack, and after cracking, the cracks will be reflected to the road surface, so that rainwater will infiltrate and make the road suffer Rainwater damage, the semi-rigid base structure is dense and cannot quickly drain the crack water seeping down the pavement from the base, and there is no self-healing ability after damage

[0006] 3. The amount of cement is increased, and the cost increases

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