A novel masonry cement

A new type of technology for masonry cement, applied in the field of cement, can solve the problems of difficult popularization and application of special admixtures, difficulty in ensuring the accuracy of admixtures, and inconformity with sustainable development, so as to solve the problems of cracking and hollowing, economic benefits and Significant social benefits, promote the effect of promotion

Inactive Publication Date: 2006-10-11
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the price of these admixtures is usually high, and the amount of admixtures is small, and it is difficult to ensure the accuracy of the amount of admixtures in the method of adding admixtures on the construction site; in addition, there may be compatibility problems between admixtures and cement. The existence of problems makes it difficult for special admixtures to be widely applied
Since ordinary Portland cement is still used, it does not meet the requirements of sustainable development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The mass ratio of raw materials is Portland cement clinker: granulated blast furnace slag: fly ash: limestone: gypsum: cellulose ether = 23:35:30:5:6.5:0.5. Its performance test values ​​are shown in Table 1.

Embodiment 2

[0028] The mass ratio of raw materials is Portland cement clinker: granulated blast furnace slag powder: steel slag powder: fly ash: gypsum: cellulose ether=44.5:23:10:20:2:0.5. Its performance test values ​​are shown in Table 1.

Embodiment 3

[0030] The mass ratio of raw materials is Portland cement clinker: granulated blast furnace slag: gypsum: cellulose ether: expansion agent: slaked lime powder: grinding aid = 23: 57: 8: 0.8: 4: 7: 0.2, and the grinding aid is Triethanolamine. Its performance test values ​​are shown in Table 1.

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PUM

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Abstract

The invention discloses a novel type of masonry cement, which comprises silicate cement clinker aggregate, mixed material, gypsum, cellulose ether, grinding aid, dispersant emulsion powder, water reducing agent, air-entrainer, quick-setting agent, retarders, instant coagulant, thixotropy lubricating agent, defoaming agent, hydrophobing agent, starch ether, plumping agent, shrinkage reduction agent, exciting agent, pigment and fabric.

Description

technical field [0001] The invention belongs to the field of cement, and in particular relates to a novel masonry cement. Background technique [0002] Masonry cement is mainly used for masonry and plastering mortar and cushion concrete, and its conventional components are mixed materials, Portland cement clinker and gypsum. Due to the lack of water retention of traditional masonry cement, wet water treatment (also known as wet construction) must be performed on new wall materials before construction. Because wet water treatment will increase the moisture content of new wall materials, on the one hand, it will cause the inner wall to be damaged. It is easy to condense and be damp and moldy. On the other hand, it will increase the shrinkage value of the new wall material, which will lead to cracking and hollowing of the plastering mortar. [0003] Because the existing masonry cement has the above-mentioned shortcomings, ordinary portland cement is often used in engineering t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B22/14C04B24/38
Inventor 杨医博梁松莫海鸿陈尤雯
Owner SOUTH CHINA UNIV OF TECH
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