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Cement reinforcement agent, its preparation and application

A cement enhancer and cement preparation technology, which is applied in the field of enhancer that can enhance the strength of cement, can solve the problems of late strength influence of cement, increase of cement cost, high price of triethanolamine, etc., achieve low use cost, increase strength, and less addition ratio Effect

Inactive Publication Date: 2006-07-19
徐福明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, salt is used in various admixtures, and the addition of salt can enhance the early strength of cement. However, after a period of research, it has been found that adding salt will have an adverse effect on the later strength of cement.
Another proven effective additive is triethanolamine. At present, in order to achieve a certain cement strengthening effect, the amount of triethanolamine added must be more than 2 / 10,000 of the total amount of cement, and the price of triethanolamine is relatively high, which causes Increased cost of cement

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Take 57 kg of water into a container with a stirring device, start the stirrer, and slowly add 2.5 kg of anhydrous sodium sulfite. After it is completely dissolved, add 3 kg of sodium acetate, stir to dissolve, and add 19 Kg of syrup, add 3 kg of triethanolamine, 0.5 kg of ethylene glycol, 3 kg of glycerol, and 12 kg of diethylene glycol in sequence after stirring. After all of them are added, continue to stir for 15 minutes to obtain the finished product.

[0026] The obtained cement enhancer is liquid, with a specific gravity of 1.05-1.10 and a pH value of 8-9.

[0027] In this embodiment, the triethanolamine used is industrial grade with a content of 85% or more; ethylene glycol is polyester grade with a content of 85% or more; glycerol is industrial grade with a content of 85% or more; and diethylene glycol is industrial grade. The content is more than 85%; the syrup can be industrial grade or food grade, the content is 70%; the anhydrous sodium sulfite is in...

Embodiment 2

[0030] Example 2: Take 56 kg of water into a container with a stirring device, start the stirrer, slowly add 4 kg of anhydrous sodium sulfite, and after it is completely dissolved, add 1.5 kg of sodium hexametaphosphate and stir to dissolve it. Put in 4 kg of anhydrous sodium sulfite and continue to stir, add 20 kg of syrup, and then add 4 kg of triethanolamine, 1 kg of ethylene glycol, 1 kg of propylene glycol, 4.5 kg of glycerol, and 8 kg of diethylene glycol. , Continue to stir for 20 minutes to obtain the finished product.

[0031] In this embodiment, the propylene glycol used is industrial grade with a content of more than 85%; sodium hexametaphosphate is industrial grade with a total phosphate content of more than 65%; the rest of the raw materials are the same as in the first embodiment.

[0032] The cement grinding head is mixed with 0.14% by weight of the cement enhancer, and is ground together with cement clinker, gypsum, and mixed materials to obtain reinforced cement. ...

Embodiment 3

[0034] Example 3: Take 47 kg of water into a container with a stirring device, start the stirrer, slowly add 2 kg of anhydrous sodium sulfite, and after it is completely dissolved, add 1 kg of sodium hexametaphosphate and stir to dissolve it. Put in 4 kg of anhydrous sodium sulfite, 8 kg of sodium acetate and continue to stir, put in 16 kg of syrup, and then add 4 kg of triethanolamine, 1 kg of ethylene glycol, 1 kg of propylene glycol, 4 kg of glycerol, and 12 kg of diethylene glycol after stirring. After all the addition is complete, continue to stir for 20 minutes to obtain the finished product.

[0035] The cement grinding head is mixed with 0.1% by weight of the cement enhancer, and is ground together with cement clinker, gypsum, and mixed materials to obtain reinforced cement.

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Abstract

The invention discloses a cement reinforcing agent, which mainly comprises triethanolamine 2-4%, glycerol 3-5%, diethylene glycol 8-15%, sugar 15-20%, anhydrous sodium sulfite 2-4% and water.

Description

Technical field [0001] The invention relates to an admixture used for grinding cement and playing a grinding aid function, in particular to a reinforcing agent capable of enhancing the strength of cement. Background technique [0002] In the production of cement, various mixtures are usually added to the cement clinker and then ground to obtain the required cement. The addition of admixture can effectively reduce the cost of cement. However, as the amount of admixture increases, the strength of cement gradually decreases. How to increase the amount of admixture while ensuring the quality of cement has always been the focus of research by technicians in this industry. [0003] In the prior art, a variety of admixtures for enhancing the strength of cement have appeared. Among them, table salt is used in a variety of admixtures. The addition of table salt can enhance the early strength of cement. However, after a period of research, it has been found that the ...

Claims

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Application Information

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IPC IPC(8): C04B24/00C04B22/08C04B7/36C04B7/52C04B103/52
Inventor 徐福明窄士俊沈黎明
Owner 徐福明
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