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High-strength white cement and preparation process thereof

A preparation process, white cement technology, applied in the field of cement manufacturing, can solve the problems of reduced whiteness, high strength, high content of iron and aluminum components, etc., to achieve the effect of improving whiteness and strength, improving mechanical strength, and improving later strength

Active Publication Date: 2020-01-14
四川宗盛特种水泥有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it is difficult to improve whiteness and strength at the same time with the existing white cement, and only one of them can be taken into account.
The well-known high-strength component cannot be separated from the iron-aluminum component. The content of the iron-aluminum component is high, and the strength is high, but the whiteness is significantly reduced

Method used

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  • High-strength white cement and preparation process thereof
  • High-strength white cement and preparation process thereof
  • High-strength white cement and preparation process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] The invention discloses a preparation process of high-strength white cement, which includes the following preparation process:

[0049] S1: Preparation of modified white Portland cement clinker:

[0050] 1): Crushing of raw materials: breaking silica, bauxite, fluorite and limestone into pieces;

[0051] 2): raw material ingredients: get the following raw materials by weight percentage:

[0052]

[0053]

[0054] Preparation of bleaching agent: after mixing 30% of barium sulfate, 30% of coke and 40% of ammonium chloride, the bleaching agent is prepared;

[0055] Fluorite uses CaF 2 50% natural fluorite;

[0056] 3): Grinding raw materials: mixing the raw materials in step 2) and then grinding to obtain grinding materials;

[0057] 4): Homogenization of raw material: Homogenize the powder and abrasive material to obtain homogenized material;

[0058] 5): Clinker calcination: import the homogenized material into the rotary kiln for calcination treatment, after ...

Embodiment 1

[0068] The difference between embodiment 10-13 and embodiment 1 is that the bleaching agent comprises the following raw materials in weight percent:

[0069]

[0070]

[0071] The difference between embodiments 14-17 and embodiment 1 is that the reinforcing agent comprises the following raw materials in weight percentage:

[0072]

[0073] Detect and calculate KH value, n value and whiteness of white cement clinker in embodiment 1-5.

[0074]

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Abstract

The invention relates to high-strength white cement and a preparation process thereof, wherein the high-strength white cement comprises, weight, 60-80 parts of modified white Portland cement clinker,6-8 parts of industrial lithium residue, 26-30 parts of limestone, and 4-6 parts of gypsum. According to the invention, by adding a certain amount of white industrial lithium residue during the grinding of white cement, the industrial waste residue can be utilized, the later strength of the white cement is improved, and the cement cost is reduced; and by modifying the white Portland cement clinker, the whiteness of the white cement is increased, so that the whiteness of the white cement is improved while the strength of the white cement is improved.

Description

technical field [0001] The invention relates to the technical field of cement production, in particular to a high-strength white cement and a preparation process thereof. Background technique [0002] White cement, also known as white Portland cement, is widely used in the construction industry. White cement is made of clay and limestone with low iron content as the main raw materials, and is made through batching, grinding, molding, calcination and re-grinding. [0003] The calcination temperature of white cement is generally 1300-1400 ℃, which consumes a lot of energy and the whiteness of the product is low. On the one hand, white cement has the gelling properties and excellent physical and mechanical properties of ordinary Portland cement, and on the other hand, it has a bright white luster, beautiful and generous. With the rapid development of the national economy, the people's requirements for the living environment are getting higher and higher, which in turn increas...

Claims

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Application Information

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IPC IPC(8): C04B7/147C04B7/44C04B7/42C04B7/36C04B7/52
CPCC04B7/147C04B7/36C04B7/422C04B7/425C04B7/44C04B7/52Y02P40/10
Inventor 杨德勇陈武双
Owner 四川宗盛特种水泥有限公司