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Cement reinforcing agent

A technology of cement reinforcing agent and anhydrous sodium acetate, which is applied in the field of cement, can solve problems such as the reduction of cement compressive strength, and achieve the effects of reducing cement costs, saving energy, and saving costs

Inactive Publication Date: 2009-04-15
谭永中
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, limited by the requirements of the cement strength standard, the amount of the above-mentioned mixture should generally not exceed 20%, otherwise, the compressive strength of the cement will be significantly reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1, described cement reinforcing agent is made up of triethanolamine, ethylene glycol, sodium acetate or anhydrous sodium acetate, urea, calcium chloride and calcium lignosulfonate, and the weight percent of its component is: triethanolamine 7% , ethylene glycol 25%, sodium acetate or anhydrous sodium acetate 10%, urea 13%, calcium chloride 25% and calcium lignosulfonate 20%. The mixed material in the original cement formula is 15%, and then the slag, furnace ash and fly ash mixed with 10% of the clinker weight are added before the original cement clinker ball milling, so that the mixed material in the cement clinker reaches 25%. , (that is, the raw materials that can be reduced by 10% in the original cement clinker), and then add a cement reinforcing agent with a total weight of 0.6‰ of the clinker and the mixture and an appropriate amount of gypsum (gypsum acts as a lubricant), and the cement is made by ball milling . The compressive strength of the cement ...

Embodiment 2

[0017] Embodiment 2, described cement reinforcing agent is made up of triethanolamine, ethylene glycol, sodium acetate or anhydrous sodium acetate, urea, calcium chloride and calcium lignosulfonate, and the weight percent of its component is: triethanolamine 25% , ethylene glycol 5%, sodium acetate or anhydrous sodium acetate 4%, urea 30%, calcium chloride 30% and calcium lignosulfonate 6%. The mixture in the original cement clinker formula is 15%. Before the original cement clinker is ball milled, 12% of the clinker weight of slag, furnace ash and fly ash mixture is added to make the amount of mixture in the cement clinker reach 27%, (that is, the raw materials that can be reduced by 12% in the original cement clinker), and then add 0.9% of the total weight of the clinker and the mixture cement enhancer and an appropriate amount of gypsum (gypsum acts as a lubricant), and it is made by ball milling into cement. The compressive strength of the cement has been tested: the 3-da...

Embodiment 3

[0018] Embodiment 3, described cement reinforcing agent is made up of triethanolamine, ethylene glycol, sodium acetate or anhydrous sodium acetate, urea, calcium chloride and calcium lignosulfonate, and the weight percent of its component is: triethanolamine 16% , ethylene glycol 16%, sodium acetate or anhydrous sodium acetate 8%, urea 30%, calcium chloride 15% and calcium lignosulfonate 15%. The mixed material in the original cement formula is 15%, and before the original cement clinker is ball milled, slag, furnace ash and fly ash mixed with 14% of the clinker weight are added to make the mixed material in the cement clinker reach 29%. , (that is, the raw materials that can be reduced by 14% in the original cement clinker), then add cement reinforcing agent with a total weight of 1.4‰ of clinker and mixture and an appropriate amount of gypsum (gypsum acts as a lubricant), and make cement by ball milling . The compressive strength of the cement has been tested: the 3-day com...

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Abstract

The present invention discloses a cement reinforcer. 0.5-1.5 part per thousand of cement intensifier and modest plaster are added to cement clinker to be ball-milled to crank out the cement. The cement reinforcer is composed of triethanolamine, ethylene glycol, acetic acid sodium or anhydrous sodium acetate, urea, calcium chloride and calcium lignosulfonate, wherein, the mass percentage of the components is: triethanolamine: 5-25 percent; ethylene glycol: 5-25 percent, acetic acid sodium or anhydrous sodium acetate 1-10percent; urea: 10-30 percent; calcium chloride: 5-30 percent; calcium lignosulfonate: 3-20 percent. Under the condition of equivalent clinker, the application of the cement reinforcer provided by the invention can help improve 3-10 MPa of the cement compressive strength and reduce 10-15 percent of the clinker amount (namely, the dosage of the re-introduction of cheap mixed materials) in the original cement formula, so as to save 6-15 yuan on the cement cost per ton. Moreover, the invention can make full use of industrial mixed waste materials so as to save the mineral resources, reduce the cement costs and improve the ecological environment. The cement intensifier is easy to use and simple to be operated, and need not change the existing cement production process.

Description

technical field [0001] The present invention relates to cement, and in particular to auxiliary additives for the manufacture of cement. Background technique [0002] As we all know, cement is one of the main products of building cementitious materials. Cement is silicate clinker made by mixing limestone, coal, iron powder and clay and other mineral raw materials, and then adding gypsum to the clinker and grinding finely made. With the rapid development of my country's economy, the amount of cement is increasing exponentially. Therefore, the consumption of mineral raw materials such as limestone, coal, iron powder and clay is increasing day by day, and the mineral resources are continuously decreasing. At present, under the premise of ensuring the strength of cement, cement manufacturers appropriately mix some mixed materials (industrial waste) through technical means, so as to achieve the purpose of saving mineral resources, reducing cement costs and protecting the environm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/18C04B24/12C04B24/02C04B24/04C04B22/12
CPCC04B40/0039
Inventor 谭永中
Owner 谭永中
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