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A concrete curing agent

A concrete curing agent and concrete surface technology, applied in the field of concrete curing agent, can solve problems such as poor water retention, unstable performance, and insufficient environmental protection, and achieve the goals of improving curing effect, stabilizing emulsion products, improving strength and wear resistance Effect

Active Publication Date: 2022-07-12
江西省圣源商品混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Paraffin wax emulsion has good water retention but not wear-resistant, water glass-based curing agent has strong wear resistance but poor water retention, solvent-based resin solution has good water retention but is not environmentally friendly, and its performance is unstable
However, the existing organic and inorganic compound curing agents often have the problem of poor compatibility.

Method used

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  • A concrete curing agent
  • A concrete curing agent
  • A concrete curing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment provides a concrete curing agent, including 20 parts of polymer emulsion and 15 parts of penetrating agent in parts by mass.

[0040] Wherein, the preparation method of polymer emulsion is:

[0041] S1. After the paraffin wax and polyethylene wax are mixed and melted, polyaryl ether ketone powder is added, and the mixture is uniformly extruded and pelletized by a twin-screw extruder to obtain ultrafine mixed pellets;

[0042] S2, mix sodium propylene sulfonate and 1 / 3 initiator to make reaction solution 1, mix vinyl acetate and 1 / 3 initiator to make reaction solution 2, add deionized water and sodium alkyl sulfonate to the reactor and the remaining 1 / 3 of the initiator, after mixing evenly, add the mixed pellets of step S1, adjust the temperature and stirring parameters of the reactor, introduce ethylene, reaction solution 1 and reaction solution 2 at the same time, and collect after 6-8h of reaction reaction product;

[0043] S3. The reaction product ...

Embodiment 2

[0049] This embodiment provides a concrete curing agent, including 20 parts of polymer emulsion and 15 parts of penetrating agent in parts by mass.

[0050] Among them, the preparation raw materials of the penetrant include 5 parts of sodium silicate, 20 parts of carboxymethyl cellulose gel particles, 0.1 part of retarder, and 50 parts of deionized water, and the preparation materials of carboxymethyl cellulose gel particles include lignin 1 part of plain, 8 parts of barite powder, 50 parts of carboxymethyl cellulose sodium salt powder, 8 parts of aluminum sulfate powder, and 5 parts of iron sulfate powder.

[0051] The preparation method of carboxymethyl cellulose gel particles is:

[0052] A. After the lignin is heated and melted, the surface of the barite powder is sprayed with a spray gun, and after cooling and drying at room temperature, the lignin-barite powder is obtained;

[0053] B. Dissolve carboxymethyl cellulose sodium salt powder in deionized water, prepare a sod...

Embodiment 3

[0059] This embodiment is a combination of embodiment 1 and embodiment 2, wherein the dosage of concrete curing agent is 0.22kg / m 3 .

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Abstract

The invention discloses a concrete curing agent, which in parts by mass comprises 20-40 parts of a polymer emulsion and 15-25 parts of a penetrant. The concrete curing agent provided by the invention can comprehensively improve the water retention rate, surface strength and wear resistance of concrete.

Description

technical field [0001] The invention belongs to the technical field of concrete curing, and more particularly relates to a concrete curing agent. Background technique [0002] Concrete curing is a very important part in concrete construction. The strength of concrete comes from the hydration of cement, and the hydration of cement can only occur in the capillary filled with water. Therefore, conditions must be created to prevent water from evaporating and lost from the capillary, so that the cement can be fully hydrated to ensure that the strength of concrete continues to grow. . Due to the limitations of traditional curing methods (covering wet sacks, wet straw bags, etc.), chemical curing methods are now mostly used, that is, applying curing agents to the newly poured concrete surface. [0003] Concrete curing agent, also known as concrete protective agent and concrete curing liquid, is a new type of polymer preparation prepared by modern high technology. It is a liquid f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B40/04C04B40/02C04B41/71
CPCC04B40/04C04B40/02C04B41/71C04B41/52C04B41/5089C04B41/4803C04B41/5014C04B41/48C04B41/4539C04B41/4556C04B41/478C04B41/4861C04B41/488C04B41/4869C04B41/4849Y02W30/91
Inventor 涂玲俐凃小良尹培民龙承峰李云阙小文曾令彰涂春明张伟曾建才邹隆华肖小华张培云
Owner 江西省圣源商品混凝土有限公司