Porous cement concrete cement overlay having bond coat laying on bituminous surface and construction method therefor

A technology of cement concrete and asphalt pavement, which is applied to cohesive pavement paved on site, roads, roads, etc., can solve the problems of poor durability, small deformation capacity, and sensitive support conditions of asphalt materials, so as to improve service performance, Enhanced deformation ability, increased adaptability effect

Active Publication Date: 2007-08-15
易志坚
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Problems solved by technology

[0007] When laying the cement concrete layer, the traditional ordinary cement concrete is a brittle material with small deformation capacity, easy to crack, sensitive to the support condition, and prone to disease on the road surface. In addition, the large shrinka

Method used

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  • Porous cement concrete cement overlay having bond coat laying on bituminous surface and construction method therefor

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Embodiment Construction

[0028] An example below:

[0029] Its structure is asphalt surface layer 3, adhesive layer 2, porous cement concrete overlay layer 1, adhesive layer 2 is laid on the asphalt surface layer 3, and porous cement concrete overlay layer 1 is paved on the upper surface of the adhesive layer 2.

[0030] The specific embodiment of the present invention is: at first cleaning the bituminous concrete pavement 3 that formed earlier, then polymer material elastic acrylic emulsion, cement, water, according to the weight mixing ratio—polymer: cement: water:=1:6:1 , using artificial mixing, and then artificially brush the formed polymer cement slurry on the asphalt concrete road surface, the polymer cement slurry will form a bonding layer 2 after solidification, when the acrylic cement slurry is not completely solidified, use a cement concrete mixer to prepare Porous cement concrete with a certain dry consistency, suitable for asphalt paver self-leveling and self-vibration process, its weight...

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Abstract

The invention relates to a porous cement concrete road which has an adhesive layer above a pitch face layer, wherein above the pitch face layer 3, the invention mixes polymer and stuff uniformly, to form polymer mixture, then lays uniform the mixture mechanically or hand-operated on the pitch face layer 3 to form an adhesive layer 2, then uses cement concrete mixer to mix uniformly cement, broken stone, sand and water to form porous cement concrete, mechanically lays porous cement concrete, flattens and presses the concrete mechanically or hand-operated to form a porous cement concrete face layer 1 to be adhered on the adhesive layer 2. The inventive cover structure has high strength, better anti-crack property, noise-reduction property or the like.

Description

1. Technical field [0001] The invention relates to pavement engineering such as road engineering and its construction method, in particular to a porous cement concrete overlay with a bonding layer on the asphalt surface and its construction method. 2. Background technology [0002] 1. Asphalt surface overlay and overlay method [0003] Asphalt pavement is one of the main pavement forms commonly used in highways and urban roads. When the asphalt pavement needs to be overlaid or overlaid, the following two methods are currently used: [0004] First, add cement concrete on the asphalt surface. In this case, the overlay material is cement concrete, and the overlay cement concrete belongs to a dense structure, which is formed by pouring and vibrating processes. [0005] Second, add asphalt concrete on the asphalt surface. Before laying asphalt concrete, it is necessary to sprinkle asphalt and sticky asphalt on the cement concrete surface below to ensure that the asphalt concre...

Claims

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Application Information

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IPC IPC(8): E01C7/32
Inventor 易志坚杨庆国周超马银华何小兵
Owner 易志坚
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