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Ultra-fine mordenite powder additive for cement concrete

A technology of cement concrete and mordenite, which is applied in the field of cement concrete admixtures, can solve the problems of insufficient strength, unsatisfactory compressive strength, unsatisfactory durability, and low particle dispersion.

Inactive Publication Date: 2006-09-13
王芳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The cement concrete admixture with mordenite as raw material has been reported at home and abroad. This cement concrete admixture is a mineral neutral inorganic material. Therefore, in use, it is the same as the cement concrete with organic materials as raw materials. Compared with the admixture, its durability is doubled, and the possibility of polluting the environment has been avoided, but the existing cement concrete admixture with mordenite as raw material still has the following problems, (1) this cement The dispersion of the particles of the concrete admixture is not high, and the adsorption is not good; (2) After the cement concrete paste is mixed with this cement concrete admixture, the SiO 2 The agglomeration phenomenon has not been well resolved, the bulk density of the system is still high, the strength is still not enough, the cohesive force is not strong, the impermeability is still not high, the acid corrosion resistance is not good, and the compressive strength and durability are still low. very unsatisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Embodiment 1: A kind of superfine mordenite powder cement concrete admixture, comprises selected mordenite; Raw material comprises the grinding aid that pH value is 7 and selected mordenite, and the preparation ratio of the two is: 1: 1000; the particle size of the finished product is 292.9-341.5 nm. The grinding aid used was triethanolamine. Put the selected mordenite into a self-impact ultrafine powder grinder for grinding, add a grinding aid with a pH value of 7 according to the above ratio during the grinding process, and after the grinding is completed, put the ground material at 120 ° C Drying under low temperature conditions, fully stirring the dried materials to disperse them, and then vacuum packaging, can be made into finished products.

Embodiment 2

[0009] Embodiment 2: a kind of superfine mordenite powder cement concrete admixture, comprises selected mordenite; Raw material comprises the grinding aid that pH value is 7.2 and selected mordenite, and the preparation ratio of the two is: 1.5: 1000; the particle size of the finished product is 292.9-341.5 nm. The grinding aids used are silanolates. Put the selected mordenite into a self-impact ultrafine powder grinder for grinding, add a grinding aid with a pH value of 7.2 according to the above ratio during the grinding process, and after the grinding is completed, put the ground material at 125 °C Drying under low temperature conditions, fully stirring the dried materials to disperse them, and then vacuum packaging, can be made into finished products.

Embodiment 3

[0010] Embodiment 3: a kind of superfine mordenite powder cement concrete admixture, comprises selected mordenite; Raw material comprises the grinding aid that pH value is 7 and selected mordenite, and the preparation ratio of the two is: 1.5: 1000; the particle size of the finished product is 292.9-341.5 nm. The grinding aids used are silicon alkoxides. Put the selected mordenite into a self-impact ultrafine powder grinder for grinding, add a grinding aid with a pH value of 7 according to the above ratio during the grinding process, and dry the ground material at 125°C after the grinding is completed After drying, fully stir the dried material to disperse it, and then vacuum pack it to make a finished product.

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Abstract

The invention discloses an ultra-fine mordenite powder additive for cement concrete wherein the raw material comprises pH=7-7.2 alkaline grinding aid and carefully chosen mordenite, the proportion of the two being 1-1.5:1000, the granularity of the end product is 292.9-341.5 nm.

Description

technical field [0001] The invention relates to a cement concrete admixture, in particular to an ultrafine mordenite powder cement concrete admixture. Background technique [0002] The cement concrete admixture with mordenite as raw material has been reported at home and abroad. This cement concrete admixture is a mineral neutral inorganic material. Therefore, in use, it is the same as the cement concrete with organic materials as raw materials. Compared with the admixture, its durability is doubled, and the possibility of polluting the environment has been avoided, but the existing cement concrete admixture with mordenite as raw material still has the following problems, (1) this cement The dispersion of the particles of the concrete admixture is not high, and the adsorption is not good; (2) After the cement concrete paste is mixed with this cement concrete admixture, the SiO 2 The agglomeration phenomenon has not been well resolved, the bulk density of the system is still...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B22/08C04B38/08C04B14/04
Inventor 王芳徐忠和秦斌青厉炳祥
Owner 王芳