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Ecological porous concrete, preparation method and applications thereof

A porous concrete and ecological technology, applied in the field of concrete, can solve the problems of complex alkali reduction process, high solution pH value, high concrete production cost, etc., and achieve the effects of high mechanical properties, not easy to fall off, high economic benefits and ecological benefits

Active Publication Date: 2019-11-05
HUAXIN CEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The alkali reduction process of the prior art is complicated, and the pH value of the solution in the pores of the concrete in the early stage is still high; and the cementitious material used in the concrete is still ordinary Portland cement, and the production cost of the concrete is relatively high

Method used

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Examples

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Effect test

preparation example Construction

[0045] The preparation method of above-mentioned ecological porous concrete comprises the steps:

[0046] Mixing step: uniformly mixing the low-alkalinity gelling material and the high molecular polymer to obtain a mixture;

[0047] When the high molecular polymer is in the form of powder, add the high molecular polymer in the mixing step; when the high molecular polymer is in the form of emulsion, the high molecular polymer can be added in the mixing step, or in the step of preparing the slurry join in.

[0048] The step of preparing the slurry: stirring the mixture, half of the weight of water and the water reducer evenly to obtain the slurry;

[0049] Wetting step: mix the stones with the remaining water to obtain wet stones;

[0050] The steps of preparing the ecological porous concrete are as follows: uniformly stirring wetted stones and slurry to obtain the ecological porous concrete.

[0051] As a further embodiment, after the step of preparing the ecological porous ...

Embodiment 1

[0055] An ecological porous concrete comprises the following components by weight: 16 parts of low-alkalinity cementitious material, 4.2 parts of water, 0.5 part of high molecular polymer, 0.3 part of water reducing agent and 79 parts of stones.

[0056] The low-alkalinity cementitious material includes the following components by weight: 10 parts of silica fume, 65 parts of mineral powder, 20 parts of desulfurized gypsum and 5 parts of P.I 52.5 portland cement. High molecular polymer is rubber powder.

[0057] The preparation method of above-mentioned ecological porous concrete comprises the following steps:

[0058] Mixing step: uniformly mixing the low-alkalinity gelling material and the high molecular polymer to obtain a mixture;

[0059] The step of preparing the slurry: stirring the mixture, half of the weight of water and the water reducing agent in a mixer evenly to obtain the slurry;

[0060] Wetting step: Stir the stones and the remaining water in a stirring pot unti...

Embodiment 2

[0065] An ecological porous concrete comprises the following ingredients in parts by weight: 18 parts of low-alkalinity cementitious material, 4 parts of water, 1 part of high molecular polymer, 0.4 part of water reducing agent, and 76.6 parts of stones.

[0066] The low-alkalinity cementitious material includes the following components by weight: 30 parts of fly ash, 45 parts of mineral powder, 15 parts of yellow gypsum and 10 parts of P.O 42.5 cement. The high molecular polymer is EVA emulsion.

[0067] The preparation method of above-mentioned ecological porous concrete comprises the following steps:

[0068] The mixing step: uniformly mixing the low-alkalinity gelling material to obtain a mixture;

[0069] The step of preparing the slurry: stirring the mixture, half of the weight of water, high molecular polymer and water reducing agent in a mixer to obtain the slurry;

[0070] Wetting step: Stir the stones and the remaining water in a stirring pot until the surface of t...

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Abstract

The invention discloses ecological porous concrete, which comprises, by weight, 1-30 parts of a low-alkalinity cementing material, 1-10 parts of water, 0.1-5 parts of a macromolecule polymer, 0.1-3 parts of a water reducing agent, and 65-90 parts of stone. The invention further discloses a preparation method and applications of the ecological porous concrete. According to the present invention, the ecological porous concrete has characteristics of high mechanical property, high porosity and high durability; the pH value of the solution in the pores of the concrete is low after the hydration ofthe low-alkalinity cementing material; the comprehensive utilization of industrial waste can be achieved, and the production cost of ecological porous concrete can be reduced; the preparation methodis simple and easy to operate; and the ecological porous concrete can be used in ecological slope protection, slope greening, isolation belt greening and mine greening engineering.

Description

technical field [0001] The invention relates to the field of concrete, in particular to an ecological porous concrete and its preparation method and application. Background technique [0002] Ecological porous concrete refers to a type of special concrete material with special structure and surface characteristics, which can reduce environmental load, adapt to biological growth, and play a positive role in regulating ecological balance, beautifying the environment and realizing the coordination between human and nature. [0003] Porous concrete is a special functional building material with a porous structure made of coarse aggregate covered with a layer of cement slurry on the surface, and there are a large number of continuous pores inside. The plant root system can grow in its pores and go deep into the soil layer through the porous concrete matrix. It can not only continuously absorb nutrients in the lower soil layer, and provide water, air, heat, fertilizer and other su...

Claims

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Application Information

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IPC IPC(8): C04B28/08C04B38/00E02D17/20
CPCC04B28/08C04B2201/50E02D17/205C04B18/146C04B22/145C04B22/00C04B14/04C04B2103/302C04B2103/0045C04B38/0041C04B18/08C04B22/143C04B14/02C04B24/2623C04B24/2676
Inventor 秦节发陈超黄劲石华任政
Owner HUAXIN CEMENT
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