Ultrathin anti-skid wearing layer and pavement with wearing layer

Abstract

The invention provides an open-graded drainage type epoxy asphalt ultrathin anti-skid wearing layer which is composed of an open-graded epoxy asphalt mixture with the porosity ranging from 15% to 20%,and the total thickness of the open-graded drainage type epoxy asphalt ultrathin anti-skid wearing layer is about 1 cm. According to the anti-skid wearing layer, epoxy asphalt is adopted to replace common asphalt and thermoplastic modified asphalt, so that the problem that the mechanical strength and durability of a thermoplastic asphalt mixture are reduced due to the comprehensive action of cyclic load, temperature stress and water is solved; the open-graded asphalt mixture with the porosity of 15%-20% is used for achieving the effect of surface drainage, the phenomenon of water drifting generated when an automobile runs at a high speed is reduced, the contact area of a tire and a road surface is increased, and the skid resistance of the asphalt wearing layer is improved; the maximum nominal particle size of the aggregate is 4.75 mm, the thickness of the open graded asphalt surface layer is controlled to be about 1 cm, theultrathin anti-skid wearing layer is formed, the constructioncost is reduced, and the construction recovery time is shortened.

Description

technical field [0001] The invention belongs to the drainage anti-slip asphalt surface layer technology, in particular to an open-graded drainage type epoxy asphalt ultra-thin anti-skid wear layer and a road surface with the wear layer. Background technique [0002] With the rapid development of my country's economy and the further development of my country's transportation industry, newer and higher requirements are put forward for road construction. People not only pay attention to the strength of the pavement structure, but also pursue the performance and safety of the road. As an important indicator of road safety, surface skid resistance has become an aspect that people pay close attention to. A good asphalt pavement surface should have good skid resistance. At the same time, in order to repair the damaged asphalt pavement surface, it will be a very effective measure to re-pave an asphalt wear layer with simple construction, good performance and short traffic time. ...

AI Technical Summary

Problems solved by technology

However, because most of them are water-tight and single-size, the anti-skid performance of the road surface becomes a big problem when the vehicle is running at high speed.

[0005] At present, ordinary asphalt or modified asphalt is mostly used as the surface layer of asphalt pavement. However, the combined effect of cyclic load, temperature stress and water can easily cause the mechanical strength and durability of thermoplastic asphalt mixture to decrease.

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