Water permeable concrete

A technology of concrete and water permeability, which is applied in the field of concrete for construction. It can solve the problems of unsatisfactory concrete water permeability and compressive strength, the inability to apply large-scale infrastructure, and the high cost of concrete pavement, so as to prevent slipping and excellent compressive strength. , the effect of reducing the temperature of the road surface

Inactive Publication Date: 2016-08-24
CHONGQING WENYANG CONSTR ENG CONSULTING CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the high price of the acrylic resin binder used and the small size of the aggregate used, the production cost is high, so the cost of the medium concrete pavement is too high for practical use, resulting in the impossibility of large-scale Scale application to infrastructure, especially road paving
In addition, the water permeability and compressive strength of the concrete manufactured by the above process are not ideal.

Method used

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  • Water permeable concrete
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The measurement method of water permeability is as follows: 100 kg of cement (PO 42.5 type), 31 kg of water, 8 kg of binder (styrene-butadiene copolymer binder, SN623 type), 500 kg of particle size Concrete was prepared by mixing aggregates of 5-35mm, and after natural curing for 28 hours, its water permeability and compressive strength were measured. Among them, the measurement of the compression method can be carried out according to GB / T5003-2002 or JTJ053-94 experiment. The water permeability measurement method is as follows:

[0018] Preparation of concrete specimens with vertical perimeter walls for measurement;

[0019] Lay the test piece flat, and then put the bottomless glass cylinder on it, aligning all sides.

[0020] Wrap the test piece and the lower part of the bottomless glass cylinder tightly with plastic paper, and then wrap it tightly from the outside with wide-band glue; there must be no wrapping or blocking at the top and bottom of the test piece, a...

Embodiment 2

[0033] 100 kilograms of cement (PO 42.5 type), 27 kilograms of water, 4 kilograms of binding agent (SN623 type), 468 kilograms of aggregates with a particle size of 8-35mm are mixed to prepare concrete, after 28 days of natural curing, adopt embodiment 1 Its water permeability and compressive strength were measured by the method in . The results are shown in Table 1 below.

Embodiment 3

[0035] 100 kilograms of cement (PO 42.5 type), 32 kilograms of water, 2 kilograms of binding agent (SN623 type), 518 kilograms of aggregates with a particle size of 8-35mm are mixed to prepare concrete, and after 28 days of natural curing, adopt embodiment 1 Its water permeability and compressive strength were measured by the method in . The results are shown in Table 1 below.

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Abstract

The invention provides a water permeable concrete, which comprises the following components in parts by weight: 100 parts of cement (P.042.5 grade), 400 to 600 parts of broken stone, 1 to 10 parts of binding agent, and 20 to 40 parts of water, wherein the binding agent is styrene-butadiene copolymer and the particle size of the aggregate is 5 to 40 millimeters. The water permeability of provided concrete can reach 10 to 40 millimeters / second, and the compressive strength can reach 15 to 35 MPa. The cost of the water permeable concrete is low, and the water permeable concrete is suitable for pavement, light type road, square, and parking lot and is especially suitable for places which are hard to drain.

Description

technical field [0001] The present invention relates to a kind of concrete for building, more particularly, relates to a kind of permeable concrete. Background technique [0002] With the progress and development of society, the roads, squares and buildings in the city have increased a lot, causing a lot of rainwater loss, which cannot be effectively infiltrated into the soil. In addition, due to the increase of urban population, the demand for domestic and industrial water has increased sharply, and the continuous exploitation of groundwater has led to the decline of groundwater levels, which has seriously affected the natural water environment. The influence of the water environment causes the destruction of vegetation and the living environment of surface organisms, and even affects the climate. [0003] At present, urban permeable roads mainly include asphalt pavement and concrete pavement. Exposure of asphalt pavement to the sun will cause the asphalt to sinter, there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B24/26
Inventor 王佳容陆凤
Owner CHONGQING WENYANG CONSTR ENG CONSULTING CO LTD
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