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Concrete based on industrial waste as raw material and preparation method thereof

A technology for industrial waste and concrete, applied in the field of building materials, can solve problems such as environmental pollution, admixture failure, waste, etc., and achieve the effect of reducing costs

Inactive Publication Date: 2019-11-22
徐州金盟新型建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the remaining materials in the slurry water are separated and directly precipitated into hard lumps and disposed of as garbage, it will not only cause great waste, but also cause great pollution to the environment.
[0003] In order to improve this situation, people have tried to use slurry water in the preparation process of concrete, however, it is currently limited to slurry water with a concentration of less than 5%.
When the slurry water concentration exceeds 5%, due to the increase of fine aggregate contained in it, the adsorption force of the admixture is enhanced, which leads to the failure of part of the admixture, and at the same time makes the sand rate significantly larger, and the concrete becomes sticky. The amount of water increases, which leads to the unqualified strength of the concrete prepared thereby, and the loss of slump is too fast, and it cannot be constructed after arriving at the construction site, which seriously affects the performance of the concrete
Therefore, at present, for slurry water with a concentration of more than 5%, it can only be used by diluting it to a concentration of less than 5%, which increases the process steps, is time-consuming and labor-intensive, not only reduces production efficiency, but also increases production costs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A kind of concrete based on industrial waste as raw material. The concrete raw material consists of 60 parts of stones, 58 parts of fly ash, 150 parts of slag Portland cement, 353 parts of medium sand, 150 parts of iron powder, and 150 parts of aluminum powder. 780 parts of waste rock, 5.55 parts of reinforcing agent, 2.8 parts of high-efficiency retarding superplasticizer, 1.15 parts of modified rubber particles, 0.36 parts of foaming agent, and 72.9 parts of waste slurry water; the high-efficiency retarding superplasticizer includes : 21 parts of polycarboxylic acid mother liquor, 3.5 parts of plastic retaining agent, 1.35 parts of air-entraining agent, 15 parts of cellulose, 20 parts of water.

[0018] Described preparation method comprises the steps:

[0019] S1. Weigh each component according to the weight of the raw material, mix evenly under the condition of mechanical stirring and dry mix for 5 minutes;

[0020] S2, then add the waste slurry water of mixing rat...

Embodiment 2

[0023] A kind of concrete based on industrial waste as raw material. The concrete raw material consists of 90 parts of gravel, 66 parts of fly ash, 260 parts of slag Portland cement, 389 parts of medium sand, 175 parts of iron powder, and 175 parts of aluminum powder. 950 parts of waste rock, 6.36 parts of strengthening agent, 3.4 parts of high-efficiency retarding superplasticizer, 1.68 parts of modified rubber particles, 0.68 parts of foaming agent, and 78.9 parts of waste slurry water; the high-efficiency retarding superplasticizer includes : 33 parts of polycarboxylic acid mother liquor, 5.5 parts of plastic retaining agent, 1.65 parts of air-entraining agent, 25 parts of cellulose, 30 parts of water.

[0024] Described preparation method comprises the steps:

[0025] S1. Weigh each component according to the weight of the raw material, mix evenly under the condition of mechanical stirring and dry mix for 10 minutes;

[0026] S2, then add the waste slurry water of mixing ...

Embodiment 3

[0029] A kind of concrete based on industrial waste as raw material. The concrete raw material consists of 75 parts of stones, 62 parts of fly ash, 200 parts of slag portland cement, 368 parts of medium sand, 200 parts of iron powder, and 200 parts of aluminum powder. 880 parts of waste rock, 6.15 parts of reinforcing agent, 3.1 parts of high-efficiency retarding superplasticizer, 1.35 parts of modified rubber particles, 0.47 parts of foaming agent, and 76.3 parts of waste slurry water; the high-efficiency retarding superplasticizer includes : 28 parts of polycarboxylic acid mother liquor, 4.5 parts of plastic retaining agent, 1.45 parts of air-entraining agent, 20 parts of cellulose, 25 parts of water.

[0030] Described preparation method comprises the steps:

[0031] S1. Weigh each component according to the weight of the raw material, mix evenly under the condition of mechanical stirring and dry mix for 7 minutes;

[0032] S2, then add the waste slurry water of mixing rat...

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PUM

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Abstract

The invention discloses concrete based on industrial waste as a raw material and a preparation method thereof. The concrete is prepared from the following raw materials in parts by weight: 60-90 partsof small stones, 58-66 parts of fly ash, 150-260 parts of Portland slag cement, 353-389 parts of medium sand, 780-950 parts of waste rock, 5.55-6.36 parts of a reinforcing agent, 2.8-3.4 parts of anefficient retarding water-reducing agent, 1.15-1.68 parts of modified rubber particles, 0.36-0.68 part of a foaming agent and 72.9-78.9 parts of waste slurry water. According to the concrete based onthe industrial waste as the raw material and the preparation method of the concrete, the cost is reduced, and zero emission of wastewater of a concrete factory is achieved.

Description

technical field [0001] The invention relates to a concrete based on industrial waste as a raw material and a preparation method thereof, and relates to the technical field of building materials. Background technique [0002] At present, the main system for producing concrete is the concrete mixing plant, and the slurry water obtained by brushing the truck in the concrete mixing plant contains a large amount of leftover materials. If the leftovers in the slurry water are separated and directly precipitated into hard blocks as garbage, it will not only cause great waste, but also cause great pollution to the environment. [0003] In order to improve this situation, people have tried to use slurry water in the preparation process of concrete, however, it is limited to slurry water with a concentration within 5% at present. When the slurry water concentration exceeds 5%, due to the increase of fine aggregate contained in it, the adsorption force of the admixture is enhanced, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/08C04B38/02C04B38/10C04B111/40
CPCC04B28/08C04B38/02C04B38/10C04B2111/00017C04B2111/40C04B14/02C04B18/08C04B14/06C04B14/34C04B18/12C04B2103/302C04B18/22C04B22/0046
Inventor 何广振
Owner 徐州金盟新型建材有限公司