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Environment-friendly, high-efficient and composite liquid cement grinding aid and preparation method thereof

A cement grinding aid and composite technology, which is applied in the field of environmental protection and high-efficiency compound liquid cement grinding aid and its preparation, can solve the problem of failure to exert the best effect of cement grinding aid, inability to effectively cooperate with grinding aid ingredients, It can't solve the problems of cement production enterprises to save costs, and achieve the effect of improving the distribution and shape of split particles, improving the stability of cement, and cost-effective

Inactive Publication Date: 2012-06-20
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although they all meet the standard of "Cement Grinding Aids", the effect is quite different due to the different components
The performance of the existing cement liquid grinding aids is relatively single. The main purpose is to increase the output of the mill, increase the strength of the cement and change some physical properties of the cement. It cannot comprehensively solve the problems in the cement production and cannot save more for the cement production enterprise. the cost of
At the same time, the existing products cannot combine the effective grinding aid ingredients together, thus failing to exert the best effect of the cement grinding aid, and the chloride ion or alkali in the cement grinding aid will cause harm to the concrete

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] First, add 5 kg of sodium tripolyphosphate into 35 kg of water, heat and stir slightly, the temperature is 30°C, after it is completely dissolved, add 5 kg of sodium hexametaphosphate into the solution, continue heating, the temperature does not exceed 50°C , stirred to dissolve. Finally, 10 kilograms of triethanolamine, 10 kilograms of triisopropanolamine, 15 kilograms of glycerol, 15 kilograms of molasses and 5 kilograms of propylene glycol were added into the solution and stirred evenly, and then cooled and filtered.

Embodiment 2

[0021] First add 6 kg of sodium tripolyphosphate to 30 kg of water, heat and stir slightly, the temperature is 30°C, after it is completely dissolved, add 3 kg of sodium hexametaphosphate into the above solution, continue heating, the temperature does not exceed 50°C , stirred to dissolve. Finally, 1 kg of triethanolamine, 20 kg of triisopropanolamine, 10 kg of glycerol, 20 kg of molasses and 2 kg of propylene glycol are added to the above solution and stirred evenly, and then cooled and filtered.

Embodiment 3

[0023] First, add 3 kg of sodium tripolyphosphate into 50 kg of water, heat and stir slightly, the temperature is 30°C, after it is completely dissolved, add 8 kg of sodium hexametaphosphate into the above solution, continue heating, the temperature does not exceed 50°C , stirred to dissolve. Finally, 20 kilograms of triethanolamine, 1 kilogram of triisopropanolamine, 20 kilograms of glycerol, 10 kilograms of molasses and 8 kilograms of propylene glycol were added to the above solution and stirred evenly, and then cooled and filtered.

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Abstract

The invention relates to an environment-friendly, high-efficient and composite liquid cement grinding aid and a preparation method thereof. The grinding aid is prepared from following materials: 1-20 parts of triethanolamine, 1-20 parts of triisopropanolamine, 10-20 parts of glycerol, 10-20 parts of molasses, 2-8 parts of propylene glycol, 3-6 parts of sodium tripolyphosphate, 3-8 parts of sodiumhexametaphosphate and 30-50 parts of water. The grinding aid of the invention has low toxicity, does not volatilize and has stable source, sufficient supply, simple processing and preparation and lowcost; the indexes meet standard requirement of JC / T667-2004 Cement Grinding Aid; after the cement is doped, the distribution and shape of the separated particles can be improved and no bad influence for cement quality exists; the yield and quality of the cement are good. The performance is stable, the price is low and the performance cost ratio is high. The adaptability is wide, the doping quantity is low, the grinding effect is improved, the free calcium oxide in the cement is reduced, and the early strength and long-term strength of the cement are improved.

Description

technical field [0001] The invention belongs to the technical field of cement process admixtures, and in particular relates to an environment-friendly and high-efficiency composite liquid cement grinding aid and a preparation method thereof. Background technique [0002] 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, cement manufacturers generally adopt the method of adding cement grinding aids. 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", due to the different components, the effect is quite different. The performance of the existing cement liquid grinding aids is relatively single. The main purpose is to incre...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B103/52
Inventor 孙小巍李晓戴民牛晚扬礼航
Owner SHENYANG JIANZHU UNIVERSITY
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