Concrete pavement structure and its design method based on pva and pan materials

Abstract

The invention relates to a concrete road surface structure based on PVA and PAN materials and a design method thereof. The method comprises the following steps that a to-be-constructed concrete road surface structure comprises a bottom layer arranged on a foundation layer, an intermediate layer arranged on the bottom layer and a surface layer arranged on the intermediate layer; the material of the bottom layer is designed to be PVA fiber concrete; the strength design value and the thickness design value of the intermediate layer are obtained through designing; and the material of the surface layer is designed to be PAN fiber concrete through designing. Aiming at the intermediate layer of the concrete road surface structure based on the PVA and PAN materials, the strength and the thickness are designed so that the strength and the thickness can meet the bearing requirement of a heavy haul locomotive and further meet the design requirement of the bearing capacity of the foundation layer, the structural strength of the intermediate layer can be improved, the stress capacity of the concrete road surface structure is improved, and the problems of cracking and fracturing of the concrete road surface structure are solved. The water resistance and flexibility of the road surface structure are improved through the PAN and PVA fiber concrete of the bottom layer and the surface layer, and the problems of water permeating and cracking are solved.

Description

technical field [0001] The invention relates to a concrete pavement structure and a design method, in particular to a concrete pavement structure based on PVA and PAN materials and a design method thereof. Background technique [0002] Generally, the pavement of factories or construction sites is made of concrete pavement, and its thickness ranges from 15cm to 50cm. Because the cost of using reinforced concrete reinforcement is too high, and the cost of steel rust protection or epoxy protection is also high, so In order to save costs, plain concrete is generally used to form it. On the one hand, the structural strength of the concrete pavement formed by plain concrete is not high. Most of the equipment transported or used on the construction site are heavy-duty locomotives, which have high load-bearing requirements on the concrete pavement. Due to the rolling of heavy-duty locomotives, the concrete pavement formed by plain concrete pouring often has problems of cracking and ...

Images