Wet-mixed mortar modifier

A technology of wet-mixed mortar and modifier, which is applied in the field of building materials, can solve the problems of poor material adaptability, affecting the effect of cement hydration and water reduction, etc., and achieve the goal of improving the durability of mortar, improving mechanical constructability, and improving workability Effect

Active Publication Date: 2015-04-29
ZHEJIANG JIANKE NEW MATERIAL DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The main component of the water reducer of the two-component liquid wet-mix mortar modifier is a polycarboxylate water reducer, which i

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: Weigh raw materials according to the following mass fractions: 18 parts of sodium tripolyphosphate per thousand parts, 1 part of sodium hexametaphosphate, 4 parts of phosphobutanetricarboxylic acid, 38 parts of glucose, 28 parts of citric acid; zeolite 65 parts of powder, 90 parts of silica fume, 200 parts of heavy calcium carbonate, 12 parts of starch ether, 30 parts of hydroxyethyl methyl cellulose ether, 1 part of sodium lauryl sulfate; 39 parts of polycarboxylate superplasticizer, 22 parts of polycarboxylic acid slump-retaining agent, 60 parts of naphthalene-based high-efficiency water reducer; 22 parts of redispersible latex powder; 9 parts of β-cyclodextrin, and the balance is fly ash. Mix the above raw materials evenly.

Embodiment 2

[0026] 18 parts per thousand parts of sodium tripolyphosphate, 2 parts of sodium hexametaphosphate, 5 parts of phosphobutanetricarboxylic acid, 38 parts of glucose, 29 parts of citric acid; 65 parts of zeolite powder, 90 parts of silica fume, heavy carbonic acid 200 parts of calcium, 13 parts of starch ether, 30 parts of hydroxyethyl methyl cellulose ether, 2 parts of sodium lauryl sulfate; 39 parts of polycarboxylate superplasticizer, 23 parts of polycarboxylate slump-retaining agent, naphthalene-based high-efficiency 60 parts of water reducing agent; 23 parts of redispersible latex powder; 9 parts of β-cyclodextrin, and the balance is fly ash.

Embodiment 3

[0028] 15 parts per thousand parts of sodium tripolyphosphate, 1 part of sodium hexametaphosphate, 4 parts of phosphobutanetricarboxylic acid, 32 parts of glucose, 24 parts of citric acid; 50 parts of zeolite powder, 80 parts of silica fume, heavy carbonic acid 200 parts of calcium, 10 parts of starch ether, 20 parts of hydroxyethyl methyl cellulose ether, 1 part of sodium lauryl sulfate; 28 parts of polycarboxylate superplasticizer, 20 parts of polycarboxylate slump-retaining agent, naphthalene-based high-efficiency 40 parts of water reducing agent; 20 parts of redispersible latex powder; 8 parts of β-cyclodextrin, and the balance is fly ash.

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Abstract

The invention provides a wet-mixed mortar modifier. Every 1,000 parts of the wet-mixed mortar modifier comprises 15-20 parts of sodium tripolyphosphate, 1-2 parts of sodium hexametaphosphate, 4-5 parts of phosphonobutane tricarboxylic acid, 32-44 parts of glucose, 24-33 parts of citric acid, 50-80 parts of zeolite powder, 80-100 parts of silica fume, 200 parts of heavy calcium carbonate, 10-15 parts of starch ether, 20-40 parts of hydroxyethyl methyl cellulose ether, 1-2 parts of sodium dodecyl sulfate, 28-50 parts of a polycarboxylate superplasticizer, 20-25 parts of a polycarboxylate slump retaining agent, 40-80 parts of a naphthalene-based superplasticizer, 20-25 parts of redispersible latex powder, 8-10 parts of beta-cyclodextrin and the balance of fly ash. The plasticity-maintaining time of the wet-mixed mortar modifier is prolonged to 36 h, the later strength and bondability of the wet-mixed mortar are improved simultaneously, the mortar durability is improved, the problems of high probability of hollowing, cracking, leaking and the like of plastering mortar are solved, and the wet-mixed mortar modifier has low energy consumption and is free of chemical and radioactive contamination.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a modifier for wet-mixed mortar. Background technique [0002] Wet-mixed mortar refers to the mixture of cement, sand, mineral admixtures, additives and water in a certain proportion after being measured and mixed in a professional production plant, transported to the place of use, and used within a specified time. Wet-mixed mortar can minimize dust pollution during mortar production, transportation, and use. Combined with mechanical construction, it can greatly improve construction efficiency and shorten the construction period. However, mortar construction is different from concrete, which requires manual or mechanical layer-by-layer construction, so that wet-mixed mortar needs to be stored at the construction site for a certain period of time. The length of time mainly depends on the number of mortar construction teams, construction efficiency, and construction afte...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B24/10C04B22/10C04B24/24
Inventor 曹云玉徐国孝柴宠舂张兵
Owner ZHEJIANG JIANKE NEW MATERIAL DEV
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