High-dispersion viscosity-reducing mortar

A high-dispersion and viscosity-reducing technology, applied in the field of mortar, can solve the problems of poor viscosity-reducing performance, poor dispersibility, and easy agglomeration.

Pending Publication Date: 2021-11-09
王国兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the object of the present invention is to effectively improve the problems of poor dispersion, easy agglomeration and poor viscosity-reducing performance of the mortar after mixing

Method used

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  • High-dispersion viscosity-reducing mortar

Examples

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Effect test

Embodiment 1

[0023] Example 1

[0024] A high-dispersion viscosity-reducing mortar, characterized in that: the mortar is composed of powder and liquid, and the powder has the following ingredients in parts by mass: 30 parts of Portland cement, 55 parts of sand, 15 parts of silica fume powder , 10 parts of slag, the following ingredients of the liquid material in parts by mass: 2 parts of hydroxypropyl methylcellulose ether, 6 parts of styrene-butadiene emulsion, 9 parts of dispersed viscosity-reducing water reducer, 40 parts of water,

[0025] The preparation method of the highly dispersed viscosity-reducing mortar comprises the following steps:

[0026] Weigh the liquid materials hydroxypropyl methylcellulose ether, styrene-butadiene emulsion, dispersed viscosity-reducing water reducer, and water according to the proportion and mix them evenly for later use;

[0027] Weigh the powdered Portland cement, sand, silica fume powder and slag according to the proportion, add them to the mortar ...

Embodiment 2

[0033] A high-dispersion viscosity-reducing mortar, characterized in that: the mortar is composed of powder and liquid, and the powder has the following ingredients in parts by mass: 28 parts of Portland cement, 54 parts of sand, and 10 parts of silica fume powder , 18 parts of slag, the following ingredients of the liquid material in terms of parts by mass: 3 parts of hydroxypropyl methylcellulose ether, 5 parts of styrene-butadiene emulsion, 8 parts of dispersed viscosity-reducing superplasticizer, 35 parts of water,

[0034] The preparation method of the highly dispersed viscosity-reducing mortar comprises the following steps:

[0035] Weigh the liquid materials hydroxypropyl methylcellulose ether, styrene-butadiene emulsion, dispersed viscosity-reducing water reducer, and water according to the proportion and mix them evenly for later use;

[0036] Weigh the powdered Portland cement, sand, silica fume powder and slag according to the proportion, add them to the mortar mixe...

Embodiment 3

[0042] A high-dispersion viscosity-reducing mortar, characterized in that: the mortar is composed of powder and liquid, and the powder has the following ingredients in parts by mass: 20 parts of Portland cement, 60 parts of sand, 20 parts of silica fume powder , 12 parts of slag, the following ingredients of the liquid material in parts by mass: 1 part of hydroxypropyl methylcellulose ether, 6 parts of styrene-butadiene emulsion, 8 parts of dispersed viscosity-reducing water reducer, 34 parts of water,

[0043] The preparation method of the highly dispersed viscosity-reducing mortar comprises the following steps:

[0044] Weigh the liquid materials hydroxypropyl methylcellulose ether, styrene-butadiene emulsion, dispersed viscosity-reducing water reducer, and water according to the proportion and mix them evenly for later use;

[0045] Weigh the powdered Portland cement, sand, silica fume powder and slag according to the proportion, add them to the mortar mixer and mix them ev...

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Abstract

The invention provides a high-dispersion viscosity-reducing mortar which is characterized in that the mortar is composed of a powder material and a liquid material, and the powder material is prepared from the following components in parts by mass: 20-30 parts of Portland cement, 50-60 parts of sand, 10-20 parts of silica fume powder and 10-20 parts of slag; the liquid material is prepared from the following components in parts by mass: 1-3 parts of hydroxypropyl methyl cellulose ether, 5-10 parts of styrene-butadiene emulsion, 8-10 parts of a dispersed viscosity-reducing water reducing agent and 30-40 parts of water. Compared with the existing phosphate group, the phosphate group in the prepared unsaturated phosphate has higher adsorption capacity, and is continuously hydrolyzed to release carboxyl in the cement hydration process, the prepared phosphate group has good dispersion effect on the cement, and can effectively reduce the internal friction force among the cement particles so as to produce the good viscosity reduction effect; and the prepared phosphate group can react with the cement hydration product so as to slow down the hydration speed and prolong the cement hydration induction period and thus the effect of improving the dispersion retention is realized.

Description

technical field [0001] The invention relates to a highly dispersed viscosity-reducing mortar, which belongs to the field of mortar. Background technique [0002] Water reducer is an admixture used in the preparation of mortar and concrete. Its main functions are as follows: increase hydration efficiency, reduce unit water consumption, increase strength, and save cement consumption; improve the consistency of mortar and concrete that has not yet solidified Workability, to prevent the segregation of its components, the comprehensive performance of the existing commercially available water reducer products is obviously poor, after being added to the mortar, its dispersibility becomes poor, it is easy to agglomerate, the strength loss is large, and the viscosity reduction performance is poor. The apparent viscosity of the body is large; it is difficult to stir, and the product quality is not stable enough; the prior art continues to solve the above problems. Contents of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B18/146C04B18/141C04B14/06C04B24/383C04B24/32C04B24/26
Inventor 王国兰
Owner 王国兰
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