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A kind of permeable ecological concrete and its preparation process

An ecological concrete and uniform mixing technology, applied in the field of concrete, can solve the problems of reducing the water permeability of concrete, affecting plant growth, reducing mechanical strength, etc., to increase plant coverage, increase nutrient elements, and improve compressive strength and flexural strength Effect

Active Publication Date: 2021-06-11
辛集市建和预拌混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the application process of ecological concrete, there are also some problems. Due to the porous structure of ecological concrete, its mechanical strength is reduced, especially its compressive performance, which reduces the scope of application and cannot meet the needs of greening substrates such as parks and squares. However, reducing the porosity of ecological concrete will simultaneously reduce the water permeability of concrete and affect the growth of plants. Therefore, how to increase the compressive strength of ecological concrete without reducing the water permeability of ecological concrete to adapt to sidewalks, parks etc. is a problem to be solved in the field of ecological concrete technology

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  • A kind of permeable ecological concrete and its preparation process

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Embodiment 1

[0039] A kind of permeable ecological concrete

[0040] (1) Mix polycarboxylate water reducer, petroleum sulfonate, 3-aminopropyltriethoxysilane, and water evenly to obtain a mixed solution, and divide it into three parts on average for subsequent use;

[0041] (2) Mix Portland cement, continuous-grade gravel with a particle size of 5-25mm, continuous-grade river sand with a particle size of 0.35-0.55mm, fibrous mixed additives, nano-titanium dioxide, and special composite admixtures, and then Add three parts of mixed solutions and stir evenly to obtain permeable ecological concrete.

[0042] Among them, the fibrous mixed additive is prepared by the following method: uniformly mix polyamide fiber, polyvinyl alcohol fiber, graphite fiber, and starch to obtain a mixture, then heat the mixture to soften it, stir and mix it uniformly, cool, pulverize, Grind to obtain a fibrous mixed additive.

[0043] Wherein, the special composite admixture is prepared by the following method: ...

Embodiment 2

[0045] A kind of permeable ecological concrete

[0046] (1) Mix the polycarboxylate superplasticizer, rosin resin, γ-glycidyl etheroxypropyl trimethoxysilane, and water evenly to obtain a mixed solution, which is divided into three parts on average for subsequent use;

[0047] (2) Mix Portland cement, continuous-grade gravel with a particle size of 5-25mm, continuous-grade river sand with a particle size of 0.35-0.55mm, fibrous mixed additives, nano-titanium dioxide, and special composite admixtures, and then Add three parts of mixed solutions and stir evenly to obtain permeable ecological concrete.

[0048] Among them, the fibrous mixed additive is prepared by the following method: uniformly mix polyamide fiber, polyvinyl alcohol fiber, graphite fiber, and starch to obtain a mixture, then heat the mixture to soften it, stir and mix it uniformly, cool, pulverize, Grind to obtain a fibrous mixed additive.

[0049] Wherein, the special composite admixture is prepared by the foll...

Embodiment 3

[0051] A kind of permeable ecological concrete

[0052] (1) Mix the polycarboxylate superplasticizer, rosin resin, γ-glycidyl etheroxypropyl trimethoxysilane, and water evenly to obtain a mixed solution, which is divided into three parts on average for subsequent use;

[0053] (2) Mix Portland cement, continuous-grade gravel with a particle size of 5-25mm, continuous-grade river sand with a particle size of 0.35-0.55mm, fibrous mixed additives, nano-titanium dioxide, and special composite admixtures, and then Add three parts of mixed solutions and stir evenly to obtain permeable ecological concrete.

[0054] Among them, the fibrous mixed additive is prepared by the following method: uniformly mix polyamide fiber, polyvinyl alcohol fiber, graphite fiber, and starch to obtain a mixture, then heat the mixture to soften it, stir and mix it uniformly, cool, pulverize, Grind to obtain a fibrous mixed additive.

[0055] Wherein, the special composite admixture is prepared by the fo...

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Abstract

The invention relates to a permeable ecological concrete and its preparation process, which belongs to the technical field of concrete and solves the technical problem of low compressive strength and flexural strength of ecological concrete in the prior art. The raw materials of the permeable ecological concrete include water, silicon Salt cement, coarse aggregate, fine aggregate, fibrous mixed additives, nano-titanium dioxide, high-efficiency water reducer, air-entraining agent, silane coupling agent, special composite admixture, special composite admixture including ammonium sulfate, silicic acid Sodium, potassium dihydrogen phosphate, silicon dioxide, and the mixed solution is divided into three parts, added to the raw materials in turn, mixed evenly, to obtain a permeable ecological concrete. The permeable ecological concrete improves the compressive strength and flexural strength of the ecological concrete without reducing the water permeability of the ecological concrete, and reduces the pH value of the ecological concrete, adapts to the growth of plants, and improves the ecological concrete. It also has the advantages of simple preparation method and uniform mixing.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a permeable ecological concrete and a preparation process thereof. Background technique [0002] Ecological concrete is also called porous concrete. Ecological concrete has received extensive attention due to its porous structure, good rainwater permeability, sound absorption, and suitable for the growth of herbaceous plants. However, in the application process of ecological concrete, there are also some problems. Due to the porous structure of ecological concrete, its mechanical strength is reduced, especially its compressive performance, which reduces the scope of application and cannot meet the needs of greening substrates such as parks and squares. However, reducing the porosity of ecological concrete will simultaneously reduce the water permeability of concrete and affect the growth of plants. Therefore, how to increase the compressive strength of ecological concrete withou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
Inventor 赵文
Owner 辛集市建和预拌混凝土有限公司