Novel liquid cement grinding aid and preparation method thereof

A cement grinding aid and liquid technology, which is applied in the field of new liquid cement grinding aid and its preparation, can solve the problems of urgent triethanolamine substitutes and high price of triethanolamine, so as to improve powder efficiency, save power consumption and reduce costs Effect

Inactive Publication Date: 2012-06-20
SHENYANG JIANZHU UNIVERSITY
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Problems solved by technology

Although all meet the "Cement Grinding Aids" standard, but because the main componen

Method used

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  • Novel liquid cement grinding aid and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0016] First, add 15 kg of molasses to 38 kg of water, heat and stir slightly at a temperature of 30°C, and after it is completely dissolved, successively add 20 kg of triisopropanolamine, 15 kg of glycerin, 4 kg of diethylene glycol, and 5 kg of diethylene glycol. Propylene glycol and 5 kg of ethylene glycol are added therein and stirred evenly, after cooling and filtering.

Embodiment 2

[0018] First, add 10 kg of molasses to 45 kg of water, heat and stir slightly at a temperature of 30°C. After it is completely dissolved, successively add 25 kg of triisopropanolamine, 10 kg of glycerin, 2 kg of diethylene glycol, and 8 kg of diethylene glycol. Propylene glycol and 10 kg of ethylene glycol are added therein and stirred evenly, after cooling and filtering.

Embodiment 3

[0020] First, add 20 kg of molasses to 30 kg of water, heat and stir slightly at a temperature of 30°C. After it is completely dissolved, successively add 10 kg of triisopropanolamine, 20 kg of glycerin, 6 kg of diethylene glycol, and 2 kg of diethylene glycol. Propylene glycol and 3 kg of ethylene glycol are added therein and stirred evenly, after cooling and filtering.

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Abstract

The invention relates to a novel liquid cement grinding aid and a preparation method thereof. The novel liquid cement grinding aid is prepared from the following raw materials by weight ratio: 10-25 parts of triisopropanolamine, 10-20 parts of glycerol, 10-20 parts of molasses, 2-8 parts of propylene glycol, 3-6 parts of diglycol, 3-10 parts of ethylene glycol and 30-45 parts of water. The novel liquid cement grinding aid has low toxicity, stable and sufficient source of raw materials and low cost, is non-volatile and is easy to process and prepare. All the indexes of the novel liquid cement grinding aid meet the standard requirements of the cement grinding aid JC/T667-2004. Mixed with the cement, the novel liquid cement grinding aid can reduce the free energy on the surface of the powder and change the distribution and the morphology of the particles of the powder, can not cause bad influence on the quality of the cement and can be generally used. Due to the adoption of the novel liquid cement grinding aid, the efficiency of grinding the cement into powder by using a grinding machine can be significantly improved, the early and later-stage strength of the cement can be increased by 2-5MPa, the cement clinker can be saved, and the mixing amount of the cement admixture can be increased by 5%.

Description

technical field [0001] The invention belongs to the technical field of cement process admixtures, and in particular relates to a novel liquid cement grinding aid and a preparation method thereof. Background technique [0002] When cement production enterprises produce cement, in order to solve the problems of high grinding power consumption, low grinding efficiency, improve cement strength and other physical properties, increase the amount of mixed materials, and reduce costs in the cement production process, they often add cement grinding aids. agent. Nowadays, most of the cement liquid grinding aids sold on the market are compounded with pure chemical components such as triethanolamine or industrial waste. Although they all meet the standard of "Cement Grinding Aids", because the main component triethanolamine is expensive, it is urgent to seek a substitute for triethanolamine. Contents of the invention [0003] The purpose of the present invention is to overcome the ...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B103/52
Inventor 孙小巍王晴陈彦文潘文浩刘阳王丽华
Owner SHENYANG JIANZHU UNIVERSITY
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