Composite pavement structure surface layer and construction method thereof: Fid-Bau Portal

Composite pavement structure surface layer and construction method thereof

LIU FUCAI / XIAO MIN / HUANG HEMING / CUI HAIBO / NIE YIHUA

The invention relates to the technical field of composite pavements, in particular to a composite pavement structure surface layer and a construction method thereof. The invention aims to solve the problem of poor mechanical strength of the existing asphalt pavement structure surface layer. The first purpose of the invention is to provide a construction method of a composite pavement structure surface layer. The construction method comprises the following steps: pouring a modified asphalt mixture into a mold to prepare a modified asphalt surface layer; the ultra-high performance concrete mixture is poured to the upper surface of the modified asphalt surface layer to form an ultra-high performance concrete layer, meanwhile, part of the ultra-high performance concrete mixture is poured into pores of the modified asphalt surface layer to be compounded to form a modified asphalt composite layer, and a semi-finished product is prepared; and the semi-finished product is subjected to maintenance treatment and demolding in sequence, the modified asphalt composite layer is arranged on the upper layer, and the composite pavement structure surface layer is obtained. The second purpose of the invention is to provide the composite pavement structure surface layer prepared based on the construction method.

本发明涉及复合路面技术领域，更具体地，涉及一种复合式路面结构面层及其施工方法。本发明的目的在于解决现有沥青路面结构面层机械强度差的问题。本发明的第一目的是提供一种复合式路面结构面层的施工方法：将改性沥青混合物浇筑至模具中，制得改性沥青面层；将超高性能混凝土拌合物浇筑到改性沥青面层的上表面形成超高性能混凝土层，同时，部分超高性能混凝土拌合物灌注到改性沥青面层的孔隙中复合形成改性沥青复合层，制得半成品；对半成品依次进行养护处理、脱模，并使改性沥青复合层置于上层，得到复合式路面结构面层。本发明的第二目的是提供基于上述施工方法制得的一种复合式路面结构面层。

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