Durable ultrathin asphalt skid-resistant surface layer pavement structure and construction method

Abstract

The invention discloses a durable ultrathin asphalt skid-resistant surface layer pavement structure and a construction method. The durable ultrathin asphalt skid-resistant surface layer pavement structure comprises a concrete pavement base course or an asphalt pavement base course, and further comprises a wheel-bonding-free interlayer bonding layer and an ultrathin asphalt skid-resistant surface layer, wherein the wheel-bonding-free interlayer bonding layer is spread on the concrete pavement base course or the asphalt pavement base course and used for preventing interlayer slippage damage, and the ultrathin asphalt skid-resistant surface layer is compacted on the wheel-bonding-free interlayer bonding layer, and the compaction thickness of the ultrathin asphalt skid-resistant surface layer is 15mm-25mm; and the ultrathin asphalt skid-resistant surface layer is prepared by adopting an open-graded hot-mix asphalt mixture in a compacted mode, the maximum particle diameter of aggregate of the ultrathin asphalt skid-resistant surface layer is not greater than 9.5 mm, and the asphalt-aggregate ratio is not smaller than 6%; and the wheel-bonding-free interlayer bonding layer is spread by adopting hot-melt type modified asphalt, the spreading used amount of the wheel-bonding-free interlayer bonding layer is 0.1-1 Kg/m<2>, and the curing time for avoiding wheel bonding is shorter than 3 minutes. According to the durable ultrathin asphalt skid-resistant surface layer pavement structure and the construction method, the skid-resistant property is good, the durability is good, the smoothness of a pavement is good, and the traffic noise can be reduced effectively.

Description

technical field [0001] The invention relates to a pavement structure and construction technology, in particular to a durable ultra-thin asphalt anti-skid surface pavement structure and a construction method. Background technique [0002] In recent years, due to the sharp increase in overloading, heavy-duty vehicles and traffic flow, most roads built in the early days have structural integrity, but the performance of the road surface such as skid resistance, smoothness, and comfort has been greatly reduced, and some even fail to meet the requirements of the road. Use requirements, there is a greater security risk. [0003] For this reason, the technology of adding a layer of asphalt concrete overlay is used to restore its surface function. [0004] As an important part of the asphalt concrete overlay maintenance technology, the function of the interlayer bonding material is to firmly bond the original asphalt mixture pavement surface layer and the asphalt concrete overlay su...

AI Technical Summary

Problems solved by technology

[0006] However, the existing asphalt concrete overlay maintenance technology has the disadvantages of large paving thickness, poor durability, short service life, poor drainage and anti-skid performance, insufficient interlayer bonding ability, easy to cause interlayer damage, and vehicle driving noise is relatively high. Big

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