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Influent polymer cement concrete pavement structure on stabilization base course and contracture method

A cement concrete and pavement structure technology, which is applied to cohesive pavement paved on site, roads, roads, etc., can solve the problems of non-continuous paving and difficult implementation, and achieve reduced brittleness, good crack resistance, and good water resistance Effect

Active Publication Date: 2007-08-15
易志坚
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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.
Due to the characteristics of polymer cement concrete materials, there will be many problems in construction, and it is difficult to implement in engineering

Method used

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  • Influent polymer cement concrete pavement structure on stabilization base course  and contracture method

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Embodiment Construction

[0030] An example below:

[0031] Its structure is: stable base 3, adhesive layer 2, inflow polymer cement concrete surface layer 1, the stable base 3 has an adhesive layer 2 on the surface, and an inflow polymer cement concrete surface on the adhesive layer 2 Layer 1.

[0032]First, clean the previously formed cement-stabilized gravel base, and then manually spread polymer cement mortar on it to form a bonding layer. The weight ratio of the bonding layer is - polymer (styrene butadiene rubber emulsion ): Filler (Ordinary Portland Cement PO 42.5): Water: Auxiliary (silicone oil defoamer) = 1:3:1:0.01, add water to dilute the bonding layer material to facilitate construction; after 1 hour, use cement The concrete mixer prepares porous cement concrete with a certain dry consistency and is suitable for the self-leveling and self-vibration process of asphalt paver. The weight ratio is - ordinary portland cement PO 42.5: crushed stone (single grade, Diameter 5-10mm): sand: water ...

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Abstract

A flow polymer cement concrete road above cement concrete with stable base layer and relative construction comprise a stable base 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 a stable base. 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 of convenie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01C7/32E01C7/08E01C7/14
Inventor 易志坚杨庆国李祖伟张太雄钟宁阳光佘键何兵
Owner 易志坚
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