Fly ash cement and preparation method thereof

A technology for fly ash cement and fly ash, which is applied in the field of fly ash cement and its preparation, can solve the problems of occupying large farmland, destroying ecological balance, groundwater and air pollution, etc., so as to reduce pollution, improve quality, and reduce The effect of energy consumption

Inactive Publication Date: 2014-10-15
TIANJIN JIANKUN CEMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a large amount of fly ash is not properly treated and utilized, it will not only occupy a large amount of farmland, but also cause groundwater, air and environmental pollution, and destroy the ecological balance.

Method used

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  • Fly ash cement and preparation method thereof
  • Fly ash cement and preparation method thereof
  • Fly ash cement and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of fly ash cement, its composition and parts by weight are as follows:

[0035]

[0036] The preparation method of fly ash cement as mentioned above, step is as follows:

[0037] After weighing the fly ash, rotary kiln clinker, slag, gypsum, and stone salt, after drying, they are respectively sent to the mill for fine grinding, and the powdered materials obtained after fine grinding are homogenized, and the homogenized The final raw materials are mixed and ground after mixing. Mineralizer is added during grinding, and the grinding time is more than 25 minutes to obtain fly ash cement.

Embodiment 2

[0039] A kind of fly ash cement, its composition and parts by weight are as follows:

[0040]

[0041] The preparation method of fly ash cement as mentioned above is the same as embodiment 1.

Embodiment 3

[0043] A kind of fly ash cement, its composition and parts by weight are as follows:

[0044]

[0045]

[0046] The preparation method of fly ash cement as mentioned above is the same as embodiment 1.

[0047] Fly ash cement detection result of the present invention:

[0048] The fly ash cement of the invention is tested and exceeds the national P?F32.5 fly ash cement standard, and its strength level is not inferior to that of traditional slag P?S?A32.5 cement.

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Abstract

The invention relates to a fly ash cement. The fly ash cement comprises, by weight, 30 to 34 parts of fly ash, 40 to 44 parts of rotary kiln clinker, 20 to 23 parts of slag, 1 to 5 parts of gypsum, 1 to 3 parts of aggregate chips and 0.5 to 2 parts of a mineralizer. According to the invention, since fly ash, rotary kiln clinker and slag are used as the components of the fly ash cement, a great amount of fly ash produced after combustion of coal can be effectively utilized and rotary kiln clinker and slag are utilized at the same time; thus, a good promotion effect is exerted on environmental protection and resource utilization, production cost of an enterprise is reduced, and production efficiency of the enterprise is improved. According to detection results, the fly ash cement exceeds national standards for P-F32.5 fly ash cement in China, and the strength of the fly ash cement is not inferior to that of traditional slag P-S-A32.5 cement.

Description

technical field [0001] The invention belongs to the technical field of cement preparation, in particular to fly ash cement and a preparation method thereof. Background technique [0002] The large-scale and rapid development of my country's infrastructure construction requires a large amount of general-purpose cement, and the characteristics of the cement industry itself, such as high energy consumption, high resource consumption, and high environmental pollution, are facing huge unsustainable challenges and impacts. Manufacture of cement from waste residues as a substitute for natural resources is an effective and feasible way to alleviate or alleviate the contradiction between needs and challenges. The utilization of industrial waste residue can not only slow down the consumption of natural resources, but also eliminate the environmental pollution caused by the waste residue itself. [0003] Fly ash is the pulverized coal ash discharged from the pulverized coal boilers of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
Inventor 赵金涛
Owner TIANJIN JIANKUN CEMENT
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