A kind of phosphorus slag-based environment-friendly building material and preparation method thereof

A kind of building materials, environmental protection technology, applied in the field of building materials, can solve the problems of not being widely used, low early activity, low strength, etc., to achieve the effect of improving workability, increasing activity, and reducing hydration speed

Active Publication Date: 2019-11-22
中建西部建设贵州有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese Patent Publication No. CN104987003A disclosed on October 21, 2015 that the name of the invention is "a method for preparing concrete with renewable admixtures", which uses waste glass powder as an admixture to prepare concrete, and the strength only meets C15-C40 Concrete, which has the problem of low early strength, is also not widely used
The chemical composition of phosphorus slag and ordinary Portland cement is basically the same, but due to the presence of P in phosphorus slag 2 o 5 and F, have strong retarding effect and low early activity, and their dosage in concrete is small

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of phosphorus slag-based environment-friendly building material, comprising the following steps:

[0025] (1) Use crushing equipment to crush the dried waste cement concrete to obtain waste cement concrete sand with a particle size of 0.01-5.00mm; use grinding equipment to grind the waste concrete sand for 45 minutes to obtain a specific surface area of ​​760m 2 / kg of waste concrete powder;

[0026] (2) Set the specific surface area to 600m 2 / kg of phosphorus slag powder, the specific surface area is 760m 2 / kg of waste concrete powder, the specific surface area is 450m 2 / kg of solid waste fly ash produced by coal power plants, the specific surface area is 18000m 2 / kg microsilica fume, P.O42.5, machine-made sand, tap water, high-efficiency polycarboxylate water-reducer with a water-reducing rate of 25%, according to the mass ratio: phosphorus slag powder: construction waste slag powder: silicon-aluminum sphere material : Nano-scale silica po...

Embodiment 2

[0029] A preparation method of phosphorus slag-based environment-friendly building material, comprising the following steps:

[0030] (1) Use crushing equipment to crush the dried waste cement concrete to obtain waste cement concrete sand with a particle size of 0.01-5.00mm; use grinding equipment to grind the waste concrete sand for 20 minutes to obtain a specific surface area of ​​580m 2 / kg of waste concrete powder;

[0031] (2) Set the specific surface area to 560m 2 / kg of phosphorus slag powder, the specific surface area is 580m 2 / kg of construction waste powder, the specific surface area is 400m 2 / kg of solid waste fly ash produced by coal power plants, the specific surface area is 20000m 2 / kg microsilica fume, slaked lime, machine-made sand, tap water, high-efficiency polycarboxylate water reducer with a water reducing rate of 27%, according to the mass ratio: phosphorus slag powder: construction waste slag powder: silicon-aluminum sphere material: nano-scale sili...

Embodiment 3

[0034] A preparation method of phosphorus slag-based environment-friendly building material, comprising the following steps:

[0035] (1) Use crushing equipment to crush the dried waste cement concrete to obtain waste cement concrete sand with a particle size of 0.01-5.00mm; use grinding equipment to grind the waste concrete sand for 30 minutes to obtain a specific surface area of ​​700m 2 / kg of waste concrete powder;

[0036] (2) Set the specific surface area to 660m 2 / kg of phosphorus slag powder, the specific surface area is 700m 2 / kg of construction waste powder, the specific surface area is 450m 2 / kg of solid waste fly ash produced by coal power plants, the specific surface area is 20000m 2 / kg microsilica fume, quicklime, river sand, tap water, high-efficiency polycarboxylate water reducer with a water reducing rate of 25%, according to the mass ratio: phosphorus slag powder: construction waste slag powder: silicon aluminum sphere material: nano silicon Quality p...

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Abstract

The invention discloses a phosphorus slag based environmentally-friendly building material and a preparation method thereof. The phosphorus slag based environmentally-friendly building material comprises the following components in parts by mass: 14.61 to 44.08 parts of phosphorus slag powder, 1.11 to 18.72 parts of building waste residue powder, 1.11 to 6.24 parts of sialic sphere powder, 1.11 to3.12 parts of nanometer silex, 2.10 to 8.46 parts of an alkaline activator, 20.81 to 66.51 parts of sand, 11.08 to 16.53 parts of water and 0.22 to 1.17 parts of an efficient polycarboxylate superplasticizer. The phosphorus slag based environmentally-friendly building material is low in cost, simple in preparation technology and short in maintenance time.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a phosphorus slag-based environment-friendly building material, and also relates to a preparation method of the phosphorus-slag-based environment-friendly building material. Background technique [0002] With the rapid development of my country's economy, there are more and more construction and industrial solid wastes. my country produces immeasurable old city renovation waste concrete, nearly 10 million tons of waste glass, and more than 95 million tons of phosphorus slag every year, and the trend is increasing year by year. Most solid wastes are stacked in the open air or landfilled, occupying a large amount of land and polluting the environment. A large amount of solid waste cannot be fully utilized again, wasting social resources. Finding an effective and green construction and industrial solid waste disposal method has become an urgent need of the current socie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/08C04B18/16C04B18/08C04B18/14
CPCC04B18/08C04B18/146C04B18/16C04B28/087C04B2201/50C04B14/06C04B22/002C04B24/24C04B2103/0068C04B22/064Y02W30/91
Inventor 林喜华刘数华班录江张广智袁义进周涛柯旭何欣赵士豪何德军
Owner 中建西部建设贵州有限公司
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