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Exposed aggregate surface washing agent and preparation method thereof

A technology of washing agent and exposed aggregate, applied in the field of concrete additives, can solve the problems of flying dust, time-consuming and labor-intensive, polluting the environment, etc., and achieve the effect of no dust pollution

Inactive Publication Date: 2021-12-03
中建科技(济南)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chiseling process is to use a chisel machine to process a rough surface on the surface of the prefabricated component. During the implementation of this process, there are shortcomings such as flying dust, polluting the environment, and time-consuming and laborious; the sandblasting process is to use a sandblasting machine to spray the pouring slurry on the surface of the prefabricated component. material, this process has the disadvantage of shallow treatment depth, which leads to the weak combination of concrete prefabricated parts and post-cast concrete; the washing process is to apply water detergent to the inner surface of the prefabricated part mold before the prefabricated part is poured. Most of the washing agents have defects such as poor adhesion and retarding effect, which lead to poor effect of exposing aggregates in the later stage, which leads to poor bonding between the side of the concrete prefabricated part and the post-cast concrete. In addition, the washing agents of the prior art are also easy to There is a phenomenon of less brushing and missing brushing of water lotion

Method used

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  • Exposed aggregate surface washing agent and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0032] A surface washing agent for exposed aggregates, characterized in that the washing agent is made of the following raw materials in parts by weight: 20 parts of retarder, 4 parts of viscosity regulator, 0.05 part of defoamer, 1 part of dispersant and coloring agent 1 part, 65 parts of water.

[0033] The retarder is polyhydric alcohol, the viscosity modifier is ionic cellulose gum, specifically sodium hydroxymethyl cellulose, the defoamer is emulsified silicone oil, and the dispersant is naphthalene-based water reducer and polycarboxylate water reducer according to The weight ratio of 1:1 is used in combination, and the colorant is iron oxide blue;

[0034] The preparation method of described washing agent comprises the following steps:

[0035] (1) Weigh 20 parts of retarder, 4 parts of viscosity modifier, 0.05 part of defoamer, 1 part of dispersant, 1 part of colorant and 65 parts of water, and mix retarder, dispersant, colorant, defoamer Add the agent into water, sti...

Embodiment 2

[0038] A surface washing agent for exposed aggregates, characterized in that the washing agent is made of the following raw materials in parts by weight: 25 parts of retarder, 3.5 parts of viscosity regulator, 0.03 part of defoamer, 1 part of dispersant and coloring agent 1 part, 70 parts of water.

[0039] The retarder is a combination of polyol, sodium gluconate and citric acid, the weight ratio of the three components is 1:1:1, the viscosity modifier is ionic cellulose glue, the defoamer is emulsified silicone oil, and the dispersant is naphthalene It is a combination of water reducing agent and polycarboxylate water reducing agent in a weight ratio of 1:1, and the colorant is iron oxide blue;

[0040] The preparation method of described washing agent comprises the following steps:

[0041] (1) Weigh 25 parts of retarder, 3.5 parts of viscosity modifier, 0.03 part of defoamer, 1 part of dispersant, 1 part of colorant and 70 parts of water, and mix retarder, dispersant, col...

Embodiment 3

[0044] A surface washing agent for exposed aggregates, characterized in that the washing agent is made of the following raw materials in parts by weight: 25 parts of retarder, 3.5 parts of viscosity regulator, 0.03 part of defoamer, 1 part of dispersant and coloring agent 1 part, 70 parts of water.

[0045] The retarder is sodium gluconate, the viscosity modifier is ionic cellulose gum, the defoamer is emulsified silicone oil, the dispersant is naphthalene-based water reducer and polycarboxylate water reducer are used in combination at a weight ratio of 1:1, The coloring agent is iron oxide blue;

[0046] The preparation method of described washing agent comprises the following steps:

[0047] (1) Weigh 25 parts of retarder, 3.5 parts of viscosity modifier, 0.03 part of defoamer, 1 part of dispersant, 1 part of colorant and 70 parts of water, and mix retarder, dispersant, colorant, defoamer Add the agent into water, stir well until there is no obvious remaining undissolved c...

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Abstract

The invention provides an exposed aggregate surface water washing agent and a preparation method thereof, and belongs to the field of concrete additives. According to the technical scheme, the water washing agent is prepared from the following raw materials in parts by weight: 15-30 parts of a retarder, 3-6 parts of a viscosity adjusting agent, 0.01-0.1 part of a defoaming agent, 0.5-2 parts of a dispersing agent, 0.5-2 parts of a coloring agent and 60-81 parts of water. The water washing agent has the beneficial effects that the water washing agent is free of dust pollution, time-saving and labor-saving, excellent in adhesion performance and retarding effect and capable of effectively avoiding the phenomena of insufficient coating and missed coating.

Description

technical field [0001] The invention relates to the field of concrete additives, in particular to a washing agent for exposed aggregate surface and a preparation method thereof. Background technique [0002] Concrete prefabricated parts exposed aggregate process water washing agent is used for the contact surface between concrete prefabricated parts and post-cast concrete, so that the precast slab aggregate on the contact surface is exposed and presents a rough surface effect, so as to improve the combination of prefabricated parts and post-cast concrete The firmness of the industry standard JGJ1-2014 of the People's Republic of China "Technical Regulations for Prefabricated Concrete Structures" stipulates in 6.5.5: the joint surface between the precast slab and the post-cast concrete laminate should be provided with a rough surface; the precast beam and post-cast Rough surfaces should be set on the joint surfaces between the concrete laminated layers; rough surfaces should ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/72
CPCC04B41/5323C04B41/72
Inventor 王启玲柳东刘宗武孙长彪张爱军张国辉王诗涵王刚陈玉财杨世海
Owner 中建科技(济南)有限公司