Water-permeable cement concrete

A permeable cement and concrete technology, applied in the field of concrete, can solve problems such as inability to balance strength and porosity, poor temperature regulation ability, poor ventilation and drainage ability, etc., achieve good ventilation and drainage capabilities, good bending and tensile strength, and prevent road accumulation Effect

CN102180623AInactive Publication Date: 2011-09-14FUJIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2011-09-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides water-permeable cement concrete. The water-permeable cement concrete is prepared by uniformly mixing cement, stones, sand, water, a water reducing agent, stone powder or stone slag, and polypropylene fibers in a weight ratio of 1:(3.5-5.5):(0.5-0.9):(0.2-0.35):(0.01-0.02):(0.15-0.25):(0.002-0.003), wherein the using amount of the cement per cubic meter of water-permeable cement concrete is 300 to 400kg. The water-permeable cement concrete has the advantages of high strength, toughness, water permeability and air permeability, small using amount of the cement, and the like, and is easy to construct.
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Description

Technical field

[0001] The invention relates to the technical field of concrete, in particular to a permeable cement concrete and a construction method.

Background technique

[0002] At present, the surface of modern cities is mostly covered by reinforced concrete buildings and impermeable pavement. Compared with natural soil, ordinary concrete pavement lacks breathability and has poor ability to absorb heat and infiltrate rainwater. A series of environmental problems have been caused. Concrete has always been considered the culprit of destroying nature, but as long as continuous pores are formed, it can create a connection point with the natural environment and greatly change the image of the past. Permeable cement concrete is a creative material for restoring the constantly damaged earth environment because of its honeycomb porous structure. It has characteristics different from ordinary concrete: small bulk density, insignificant capillary phenomenon of water, air per...

Examples

Embodiment Construction

[0010] The invention relates to a permeable cement concrete. The permeable cement concrete is composed of cement, stones, sand, water, water reducing agent, stone powder (slag) and polypropylene fiber. The cement consumption per cubic meter of permeable cement concrete is 300kg-400kg , the sand rate is 10%-20%, and it is made by uniformly mixing according to the following weight ratio: cement: gravel: sand: water: water reducing agent: stone powder (slag): polypropylene fiber The weight ratio is 1: 3.5 ~ 5.5: 0.5 ~0.9: 0.2~0.35: 0.01~0.02: 0.15~0.25: 0.002~0.003. Add the components in the above ratio to the mixer, mix them evenly to make concrete, and then carry out paving construction.

[0011] When utilizing the permeable cement concrete of the present invention to carry out construction, comprise the following steps:

[0012] 1. Add the components of the permeable cement concrete into the concrete mixer according to a certain ratio, and after stirring for a certain period ...