Ultra-fine powder cement admixture and manufacturing method thereof

A technology of cement admixture and ultra-fine powder, which is applied in cement production and other directions, can solve the problems of high particle size and unsightly concrete, and achieve the effects of good wear resistance, good durability and excellent environmental performance

Inactive Publication Date: 2014-08-06
王诗友
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And because the particle size is relatively high

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  • Ultra-fine powder cement admixture and manufacturing method thereof

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[0021] The superfine micropowder cement admixture of the present invention is characterized in that it includes 700-900 mesh cement, 1000-1200 mesh mineral powder, 700-900 mesh expansion agent and fly ash, wherein the cement accounts for 65%-75%; The mineral powder accounts for 20%-30%, the expansion agent accounts for 2%, and the fly ash accounts for 3%.

[0022] Wherein the cement is preferably 800 mesh cement, the mineral powder is preferably 1100 mesh mineral powder, and the expansion agent is preferably 800 mesh expansion agent. The proportion of the cement is preferably 70%, and the proportion of the mineral powder is preferably 25%. The mineral powder is obtained by finely grinding water slag, and the expansion agent is an additive that adds water to expand, and it is really blended to achieve the effect of not shrinking. The average particle size of the cement is 5.4, the average particle size of the mineral powder is 4.5, the average particle size of the expansion ag...

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Abstract

The invention relates to an ultra-fine powder cement admixture and a manufacturing method thereof. In the ultra-fine powder cement admixture, 700-to-900-mesh cement accounts for 65 to 75% and has an average particle size of 5.4 mu m; 1100-to-1200-mesh ore powder accounts for 20 to 30% and has an average particle size of 4.5 mu m; a 700-to-900-mesh expanding agent accounts for 2% and has an average particle size of 5.4 mu m; and fly ash accounts for 3% and has an average particle size of 4.5 mu m; and the particle sizes of the above-mentioned materials are controlled by using wind power. The ultra-fine powder cement admixture provided by the invention has the advantages of good workability, high durability, low hydration heat and good thermal stability and is more than 5 times finer than materials of a same kind.

Description

technical field [0001] The invention relates to a superfine micropowder cement admixture and a preparation method thereof. Background technique [0002] The cement used in construction projects in the prior art is generally ordinary Portland cement. During construction, sand, water and admixtures are added to make concrete, and then the concrete mixture is put into a mold for molding and curing, and then disassembled. Formwork, in order to create conditions to fully hydrate the cement, accelerate its hardening, make its strength continuously increase and prevent abnormal shrinkage, cracks and other damages caused by exposure, wind, cold and other conditions after the concrete is formed, it is necessary to remove the formwork After curing the concrete. And because particle size is relatively high, the concrete that makes is not attractive in appearance. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the defici...

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Application Information

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IPC IPC(8): C04B7/26
CPCY02P40/10
Inventor 王诗友
Owner 王诗友
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