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Environment-friendly admixture concrete and preparation method thereof

A technology of concrete and admixture, applied in the field of concrete, can solve the problems of urban water quality, poor water permeability, poor strength performance, etc., and achieve the effects of improving COD removal rate, improving adsorption performance, and alleviating resource shortage.

Inactive Publication Date: 2021-03-05
四川腾翔建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that the concrete prepared by using construction waste as recycled aggregate has poor strength performance and forms a pavement structure with poor water permeability and air permeability, and the increasingly serious urban pollution has a serious impact on urban water quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044]An environmentally friendly admixture concrete, including the following raw materials: 80kg of water, 220kg of ordinary Portland cement, 350kg of artificial sand, 550kg of industrial waste rock, 20kg of steel slag powder, 15-kg of slag powder, and 2 water reducers kg, 45 kg of adsorption and purification material, 2 kg of water-permeable regulator, said adsorption and purification material includes 5 kg of chitosan solution and 40 kg of biochar powder;

[0045] Among them, the ordinary portland cement is P.O42.5, the water reducer is polycarboxylate water reducer, and the solid content is 25%; the apparent density of artificial sand is 2600㎏ / m³, and the specific surface area of ​​slag powder is 430㎡ / ㎏, the specific surface area of ​​steel slag powder is 300㎡ / ㎏, the density of biochar powder is 1.56㎏ / m³, the biochar powder is coconut shell activated carbon, and the concentration of chitosan solution is 8%;

[0046] The preparation method of environment-friendly admixture...

Embodiment 5

[0057] The difference with Example 4 is that the cellulose acetate is 1kg, the silica dimethyl silylate is 5kg, and the rest are the same as Example 4.

Embodiment 6

[0059] The difference from Example 4 is that the cellulose acetate is 1 kg, the silica dimethyl silylate is 3.5 kg, and the rest are the same as in Example 4.

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Abstract

The invention relates to the field of concrete, and particularly discloses environment-friendly admixture concrete and a preparation method thereof. The environment-friendly admixture concrete comprises the following raw materials in parts by weight: 80-110 parts of water, 220-260 parts of ordinary Portland cement, 500-600 parts of artificial sand, 700-900 parts of industrial waste stone, 20-35 parts of steel slag powder, 15-30 parts of slag powder, 2-6 parts of a water reducing agent, 45-80 parts of an adsorption purification material and 2-6 parts of a permeable regulator. The preparation method of the environment-friendly admixture concrete comprises the following steps: step 1, preparing the permeable regulator; step 2, pretreating the industrial waste stone; step 3, preparing the adsorption purification material; and step 4, mixing, stirring and homogenizing the water, the ordinary Portland cement, the artificial sand, the industrial waste stone, the steel slag powder, the slag powder, the adsorption purification material and the permeable regulator according to a formula ratio so as to obtain the concrete. The concrete is prepared from industrial waste raw materials; the prepared concrete is good in compressive strength; COD of water can be removed; water quality conditions are improved; and an urban ecological environment is improved.

Description

technical field [0001] The application relates to the field of concrete, more specifically, it relates to an environment-friendly admixture concrete and a preparation method thereof. Background technique [0002] Concrete, referred to as "concrete" for short, usually refers to the concrete that uses cement as the cementitious material, sand and stone as the aggregate, and water (may contain admixtures and admixtures) in a certain proportion, and is obtained by stirring. BS. As an important building material, concrete is of great significance to the economic and social development of our country, and has a wide range of applications in civil engineering, water conservancy and hydropower, transportation and other fields. [0003] At present, the patent application publication number CN106830773A discloses a construction waste recycled concrete, including 24%-36.5% of recycled coarse aggregate, 36.5%-48% of recycled fine aggregate, 18% of cement and 10% of water, and the const...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00017C04B14/06C04B18/12C04B18/142C04B18/141C04B2103/302C04B24/38C04B14/022C04B24/383C04B24/42
Inventor 陈丛杰邹杰
Owner 四川腾翔建材有限公司
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