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Cement mortar additive

A cement mortar and additive technology, applied in the field of building materials, can solve the problems of increasing the viscosity of cement slurry, accelerating the setting time, hollowing, cracking, etc., to increase water retention and adhesion, improve workability, and prevent turtles. cracked effect

Inactive Publication Date: 2006-11-15
陆景太
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some effects have been received, there are still large differences in increasing the viscosity of the cement slurry and accelerating the setting time
Especially the internal and external walls and ceiling plastering, the problem of cracking and hollowing has not been solved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Add 11Kg of montmorillonite powder and 11Kg of gypsum powder into the calciner, and calcinate at a temperature of 140-150°C for 2-3 hours, then combine the calcined montmorillonite powder and gypsum powder with 21Kg of organic bentonite, 24Kg of light-burned magnesium oxide, Put 14Kg of kaolin and 9Kg of dispersant sodium tripolyphosphate into the reaction kettle, stir for 2-3 hours, grind and sieve to obtain this additive.

Embodiment 2

[0020] Put 15Kg of montmorillonite powder and 15Kg of gypsum powder into the calciner, and calcinate at a temperature of 140-150°C for 2-3 hours, then combine the calcined montmorillonite powder and gypsum powder with 30Kg of organic bentonite, 18Kg of light-burned magnesium oxide, Add 13Kg of kaolin and 8Kg of dispersant sodium tripolyphosphate into the reaction kettle, stir for 2-3 hours, grind and sieve to obtain this additive.

Embodiment 3

[0022] Add 19Kg of montmorillonite powder and 19Kg of gypsum powder into the calciner, and calcinate at a temperature of 140-150°C for 2-3 hours, then combine the calcined montmorillonite powder and gypsum powder with 39Kg of organic bentonite, 11Kg of light-burned magnesium oxide, Add 11Kg of kaolin and 6Kg of sodium dodecylbenzenesulfonate as a dispersant into the reaction kettle, stir for 2 to 3 hours, grind and sieve to obtain the additive.

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PUM

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Abstract

An additive of cement mortar for improving physical and mechanical properties to prevent crack generation and osmosis is proportionally prepared from montmorillonite powder, gypsum powder, benton, magnesium oxide, kaolin and disperser.

Description

technical field [0001] The invention relates to a building material, in particular to a cement mortar additive capable of preventing wall cracks and hollowing. Background technique [0002] Cement mortar is used in masonry, cement prefabricated masonry, interior and exterior walls, and ceiling plastering. Cement mortar is mainly made of cement, lime, sand and water, and the ratio between them is 1:0.6:6 : 1.8. The preparation of this cement mortar is not only cumbersome, time-consuming and labor-intensive, but also consumes a large amount of lime, resulting in high cost. There are still many disadvantages during use, such as poor water-reducing performance and long setting time due to the addition of lime paste; its workability and viscosity are average, and the plastered walls and ceilings are prone to cracks and hollows, and more ash is lost during construction, resulting in waste; The construction is inconvenient, and the mortar will condense if it is not used in time. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B22/00C04B14/10C04B14/12C04B22/08C04B22/14
Inventor 陆景太
Owner 陆景太
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