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A kind of crystal form optimized concrete synergist mother liquor and preparation method thereof

A concrete synergist and crystal form technology, which is applied in the field of concrete synergists, can solve the problems of large impact on price, impact on concrete adaptability, and relatively large price fluctuations of alcohol amines, so as to reduce cement consumption and cost price fluctuations Small, the effect of increasing the amount of utilization

Active Publication Date: 2021-07-09
北京盛大风华科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the enhancement mechanism of the grinding aid is completely different from that of the concrete synergist. If the raw material of the cement grinding aid is used to prepare the concrete synergist, it may affect the adaptability of the concrete.
At the same time, alcohol amines are subject to relatively large fluctuations in the price of ethylene oxide, and have a relatively large impact on their prices

Method used

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  • A kind of crystal form optimized concrete synergist mother liquor and preparation method thereof
  • A kind of crystal form optimized concrete synergist mother liquor and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0043] 1.1 Raw materials, parts by mass,

[0044] Cement solubilizer: polymethacryloxyethyltrimethylammonium chloride aqueous solution (viscosity average molecular weight 1000, mass concentration 20%);

[0045] Supersaturation stabilizer: sodium polystyrene sulfonate aqueous solution (viscosity average molecular weight 1000, mass concentration 20%);

[0046] Hydration inducer: calcium nitrate;

[0047] Crystal form optimizer: zinc nitrate;

[0048] Defoamer: polyoxyethylene polyoxypropylene glyceryl ether.

[0049] 1.2 The preparation process is:

[0050] At 5°C, with a stirring speed of 300r / min, dissolve 0.2 parts of cement solubilizer and 0.5 parts of supersaturation stabilizer in a reactor filled with 25.05 parts of deionized water, and then add 60 parts of hydration inducer within 1 hour Add 2 parts into the reactor for complexation and dissolution, then add 4 parts of crystal form optimizer into the reactor, stir for 20 minutes, add 0.05 part of defoamer, and stir fo...

Embodiment 2

[0052] 2.1 Raw materials, parts by mass,

[0053] Cement solubilizer: polymethacryloxyethyltrimethylammonium chloride aqueous solution (viscosity average molecular weight 2000, mass concentration 20%);

[0054] Supersaturation stabilizer: sodium polyaspartate aqueous solution (viscosity average molecular weight 1500, mass concentration 20%);

[0055] Hydration inducer: calcium nitrate;

[0056] Crystal form optimizer: zinc nitrate;

[0057] Defoamer: polyoxyethylene polyoxypropylene glyceryl ether;

[0058] 2.2 The preparation process is:

[0059] At 40°C, with a stirring speed of 200r / min, 0.8 parts of cement solubilizer and 1 part of supersaturation stabilizer were dissolved in a reactor filled with 35.25 parts of deionized water, and then 65 parts of hydration inducer were dissolved in Add 4 times within 1 hour to the reactor for complexation and dissolution, then add 8 parts of crystal form optimizer to the reactor, stir for 30 minutes, add 0.15 parts of defoamer, and st...

Embodiment 3

[0061] 3.1 Raw materials, parts by mass

[0062] Cement solubilizer: polyacryloyloxyethyltrimethylammonium chloride aqueous solution (viscosity average molecular weight 1020, mass concentration 20%);

[0063] Supersaturation stabilizer: sodium polystyrene sulfonate aqueous solution (viscosity average molecular weight 1490, mass concentration 20%);

[0064] Hydration inducer: calcium nitrite;

[0065] Crystal form optimizer: ferric nitrate;

[0066] Defoamer: polyoxyethylene polyoxypropylene glyceryl ether.

[0067] 3.2 The preparation process is:

[0068] At 25°C, with a stirring speed of 250r / min, 0.3 parts of cement solubilizer and 0.9 parts of supersaturation stabilizer were dissolved in a reactor filled with 30 parts of deionized water, and then 62 parts of hydration inducer were dissolved in 1h Add 3 times into the reactor for complexation and dissolution, then add 5 parts of crystal form optimizer into the reactor, stir for 25 minutes, add 0.1 part of defoamer, and s...

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Abstract

The present invention specifically relates to a crystal form optimized concrete synergist mother liquor, comprising: 0.2-0.8 parts of cement accelerator; 0.5-1 part of supersaturation stabilizer; 60-65 parts of hydration inducer; 4 parts of crystal form optimizer ~8 parts; defoamer 0.05~0.15 parts; deionized water 25.05~35.25 parts. A method for preparing a crystal form-optimized concrete synergist mother liquor, comprising the following steps: (1) under the conditions of 5°C to 40°C and a stirring speed of 200 to 300r / min, the cement solubilizer and the supersaturation are stabilized (2) Add the hydration inducer into the reactor for 2 to 4 times within 1 hour and stir for complexation and dissolution; (3) Add the crystal form optimizer into the reactor , stirred for 20-30 minutes, then added the defoamer, stirred for 5-10 minutes, and obtained the mother liquor of crystal form-optimized concrete synergist.

Description

technical field [0001] The invention belongs to the technical field of concrete synergists, and in particular relates to a crystal form optimized concrete synergist mother liquor and a preparation method thereof. Background technique [0002] Cement clinker is the main raw material for making cement. In the process of preparing clinker, a large amount of carbon dioxide and nitrogen oxides will be emitted, which will cause great damage to the environment. At the same time, a large amount of solid waste such as fly ash, slag, gangue and steel slag is accumulated, so that a large amount of land resources are occupied. Therefore, the comprehensive utilization of solid waste is imminent, and the concrete industry is the industry that consumes the most solid waste. Therefore, in the case of ensuring that the concrete indicators are qualified, using more industrial solid waste to replace cement and preparing high-performance concrete is of great significance to the energy saving,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/32
CPCC04B40/0046C04B24/2652C04B24/163C04B22/085C04B24/32C04B22/08
Inventor 王玫林春彦
Owner 北京盛大风华科技有限公司
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