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Aerated concrete blocks added with high chlorine silicon slag slurry

A kind of technology of aerated bricks and silicon slag, which is applied in the field of waste recycling, can solve the problems of great influence on the quality of finished products, and achieve the effects of saving resources, saving mining and production costs, saving and protecting the environment

Inactive Publication Date: 2017-11-24
云南巧消渣科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that in addition to the preparation of the process, the choice of raw materials has a greater impact on the quality of the finished product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The aerated brick with high chloride silicon slag added according to the present invention, its addition method is:

[0023] a. Mix 300 parts of limestone powder with 80 parts of high-chloride silicon slag, and adjust the fixed liquid ratio to 1.1 g / cm 3 After injecting the slurry into the mixer, add quicklime, cement, fly ash and foaming agent; the addition amount is 60 parts of quicklime, 60 parts of cement, 30 parts of fly ash, and 0.5 part of foaming agent; the limestone powder is finely ground limestone Powder: The specific surface area of ​​stone powder is controlled at 70-150 square meters per gram. The dosage is 450 parts, which acts as the skeleton of the product; fly ash is industrial grinding waste residue such as thermal power generation. The thickening agent can determine the length of the thickening time according to the amount of quicklime used. A reasonable amount of quicklime in the aerated brick process of the present invention can save the finished p...

Embodiment 2

[0027] The aerated brick with high chloride silicon slag added according to the present invention, its addition method is:

[0028] a. Mix 500 parts of limestone powder with 100 parts of high chloride silicon slag to adjust the density to 1.4 g / cm 3 After injecting the slurry into the mixer, add quicklime, cement, fly ash and foaming agent; the addition amount is 120 parts of quicklime, 120 parts of cement, 60 parts of fly ash, and 0.1 part of foaming agent; the limestone powder is finely ground limestone Powder: The specific surface area of ​​stone powder is controlled at 70-100 square meters per gram. The dosage is 500 parts, which acts as the skeleton of the product; fly ash is industrial grinding waste residue such as thermal power generation. The thickening agent can determine the length of the thickening time according to the amount of quicklime used. A reasonable amount of quicklime in the aerated brick process of the present invention can save the finished product, an...

Embodiment 3

[0032] The aerated brick with high chloride silicon slag added according to the present invention, its addition method is:

[0033] a. Mix 420 parts of limestone powder with 90 parts of high chloride silicon slag to adjust the density to 1.35 g / cm3 After injecting the slurry into the mixer, add quicklime, cement, fly ash and foaming agent; the addition amount is 90 parts of quicklime, 90 parts of cement, 45 parts of fly ash, and 0.8 part of foaming agent; the limestone powder is finely ground limestone Powder: The specific surface area of ​​stone powder is controlled at 70-100 square meters per gram. The dosage is 540Kg / m 3 , which acts as the skeleton of the product; fly ash is industrial grinding waste residue such as thermal power generation, has a certain activity of cementitious material, can replace part of cement, and provides strength after steaming, and the dosage is 58Kg / m 3 Quicklime is a thickening agent, and the length of the thickening time can be determined acc...

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PUM

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Abstract

The invention relates to reuse of wastes, in particular relates to an application of waste residues in aerated concrete blocks and adjustment in production of the aerated concrete blocks. According to the invention, coal ash is replaced by high chlorine silicon slag slurry to provide strength subsidy after steam curing. Meanwhile, part of stone powder is replaced by the high chlorine silicon slag slurry, so that the dosage of limestones or quartz sand can be saved. The high chlorine silicon slag slurry mainly exists in form of fine silicon oxide and sodium chloride, and the specific surface area even can reach 300-350 sq / g, the use amount of the stone powder can be reduced since part of stone powder is partially replaced, and the energy consumption and the cost caused by a grinding process are reduced. By controlling the specific surface area (220+ / -10mm) of the mixed slurry and keeping a certain density, the problem of insufficient foaming or collapse as the slurry is too thick or too thin is solved. By taking an aluminum powder single product as a foaming agent, a compound foaming process of combining the aluminum powder with part of K12(lauryl sodium sulfate) or sodium dodecyl sulfate can be adopted. The mass fraction of the aluminum powder to K12 is 8: 2 or 9: 1. The uniformity and stability of bubbles are better. By adjusting the mass fraction, the foaming speed and controllability are higher. According to the invention, a foam stabilizer is also introduced, for example, resins, acacia gum, bone glue and the like, so that the production quality stability is guaranteed.

Description

technical field [0001] The invention relates to the reuse of waste, in particular to the application of waste slag in aerated bricks and the adjustment of the production of aerated bricks. Background technique [0002] Aerated brick is a lightweight, porous new wall material, widely used in non-load-bearing or enclosure filling structures of industrial and civil buildings. The process uses calcareous materials (quicklime, cement), siliceous materials (fly ash, slag powder, etc.) It is made through the processes of batching, stirring, pouring, thickening, cutting and steaming. Its structure contains a large number of uniform and fine pores, which can be made into blocks, plates and insulation products of different specifications. It is vigorously promoted by the country because of its superior sound insulation and heat insulation performance. It can be seen that in addition to the preparation of the process, the choice of raw materials has a greater impact on the quality ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/12C04B38/02C04B38/10C04B111/40
CPCC04B28/12C04B38/02C04B38/10C04B2111/00017C04B2111/40C04B14/28C04B18/0427C04B7/00C04B18/08
Inventor 徐兴卫郭海
Owner 云南巧消渣科技有限公司
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