Influent polymer cement concrete pavement structure on asphalt surface course and contracture method

Abstract

A flow polymer cement concrete road above pitch face layer and relative construction comprise a pitch face layer 3 and a plated adhesive layer 2, wherein above the adhesive layer 2, the invention uses single-stage stage or intermission-stage broke stone to form porous cement concrete, to be laid and flattened, vibrates the porous cement concrete, and sprays the polymer mixture mechanically on the face of concrete, to flow the polymer mixture into the porous cement concrete, then stuffs some holes in the concrete, to form a flow polymer cement concrete face layer 1. The inventive face layer 1 has high strength, anti-crack property, waterproof property and aging resistance or the like, while the adhesive layer 2 can integrate the face layer and the pitch face layer 3, to bear force together.

Description

1. Technical field [0001] The invention relates to pavement engineering such as road engineering and a construction method thereof, in particular to an inflow polymer cement concrete pavement structure and construction method on an asphalt surface layer. 2. Background technology [0002] 1. Cement concrete material and its construction method [0003] Cement concrete is a well-known building material. Although the development of concrete has only a history of more than 100 years, it has become the most widely used and used building material in the world, and it can be seen almost everywhere. Cement concrete uses cement paste of inorganic materials as the adhesive material to bond gravel and sand. Plastic cement concrete has a certain fluidity. In order to ensure the compactness of the solidified concrete, the vibrating process is generally used when pouring plastic concrete. After the cement slurry solidifies, it forms concrete as hard as stone. It has the characteristics ...

AI Technical Summary

Problems solved by technology

[0006] The current polymer-modified cement concrete materials have the following main problems in use: when the above-mentioned first process is adopted, since the shrinkage of polymer-modified cement concrete is generally greater than that of ordinary cement concrete, even the polymer with the best shrinkage performance The shrinkage of modified cement concrete is only the same as that of ordinary concrete. Therefore, shrinkage compensation joints must be set when paving polymer modified cement concrete, and continuous laying is not possible.

When paving the cement concrete surface layer, the thickness is generally thicker, which is economically wasteful; when paving the asphalt layer, due to the poor durability of asphalt materials and the short service life, additional paving may still be required after a few years, and the overall cost is expensive

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