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Concrete curing agent and preparation method thereof

A technology of concrete curing agent and stabilizer, which is applied in the field of concrete curing agent and its preparation, can solve the problems of poor water retention and decreased water retention effect, and achieve the effects of improving water retention rate, good water retention effect and wide application range.

Active Publication Date: 2021-06-15
杭州华杰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

[0006] However, the curing agents currently on the market generally show poor water retention, especially in high temperature and high drought, the water retention effect is seriously reduced

Method used

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  • Concrete curing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 100 parts by weight of β carboxyethyl acrylate, 56 parts by weight of dodecylvinyl ether, 78 parts by weight N, N-dimethyl methacrylate, 112 parts by weight of 2-methacrylate methoxyethyl ethyl escency The monomer and 1000 parts by weight of water were mixed; 140 ° C, stirring under stirring conditions were added to the polymerization polymerization, and 2.3 parts of dodecyliol regulate molecular weight is adjusted; continued to add 34 parts by weight by silicic acid. Potassium and sodium silicate by mixture of mixtures and margins combined with 1: 1; mixed with 7 parts by weight by MDBS, EDBS, and DMDBS massage 1: 1: 1 mixture and 7 parts by weight of sulfonated grapiene , Mix evenly, resulting in concrete maintenance agent # 1.

Embodiment 2

[0054] 100 parts by weight of the beta carboxyethyl acrylate, 72 parts by weight of dodecylvinyl ether, 67 parts by weight N, N-dimethyl methacrylate, 97.5 parts by weight of 2-methacrylate methoxyethyl ethyl ester The monomer and 1000 parts by weight of water mixed; 140 ° C, stirring 1.5 parts by weight of the oxidation of diothylopentalethylene-initiated polymerization, simultaneous addition of 3.5 parts of dodecyliol regulating molecular weight; continued 45 parts by weight of the silicic acid Potassium and sodium silicate massage mixtures and margins of the mixture of 1: 1; 10 parts by weight of MDBS, EDBS, and DMDBS massage 1: 1: 1 mixture and 8 parts by weight of sulfonated grapiene , Stir evenly to obtain concrete maintenance agent # 2.

Embodiment 3

[0056] 100 parts by weight of β carboxyethyl acrylate, 83 parts by weight of Dodecylvinyl ether, 58 parts by weight N, N-dimethyl methacrylate, 112 parts by weight of 2-methacrylate methoxyethyl escency The monomer and 1000 parts by weight of water were mixed; 1.3 parts by weight of the oxidative diopopentale was added to 140 ° C, stirring conditions, and 3.2 parts of dodecyllines were added to regulate molecular weight size; continued to add 40 parts by weight by silicic acid. Potassium and sodium silicate in combination of 1: 1 mixture of water; additional 8 parts by weight of MDBS, EDBS and DMDBS massage 1: 1: 1 composed of mixtures and 8 parts by weight of sulfonated graphene, stir Uniform, resulting in concrete maintenance agent # 3.

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PUM

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Abstract

The invention discloses a concrete curing agent and a preparation method thereof, and belongs to the technical field of building material curing. The concrete curing agent is prepared from beta-carboxyethyl acrylate, dodecyl vinyl ether, N,N-dimethylacrylamide, 2-methoxyethyl methacrylate, di-tert-amyl peroxide, alkali metal silicate, a polymerization regulator, a viscosity regulator and a stabilizer. The stabilizer disclosed by the invention has the multiple beneficial effects that (1) a film is quickly formed; (2) the water retention rate is improved, and the carbonization depth is reduced; (3) the mechanical property and durability of the concrete are ensured; and (4) the application range is wide. The concrete disclosed by the invention is simple in preparation method and convenient to use, and has important popularization and application values.

Description

Technical field [0001] The present invention belongs to the field of construction material maintenance, and in particular, to a concrete conservation agent and a preparation method thereof. Background technique [0002] Concrete is a raw stone made from cement, fine material (sand), coarse material (gravel) and water mixing, is the most important part of the building. The application of commodity concrete has greatly improved the quality of architectural projects and promoted the development of commodity concrete industry. [0003] After the casting of concrete, the proper temperature and sufficient humidity need to be maintained in a substantial period of time, so that the good hardened conditions of the concrete. However, due to various reasons such as construction, weather, the maintenance of concrete does not meet the requirements. It not only affects the growth of concrete, but more importantly, due to the sharp evaporation of concrete surface, causing dry shrinkage, crackin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B40/04C08F220/28C08F216/20C08F220/54
CPCC04B40/04C08F220/281C08F220/283C08F216/20C08F220/54
Inventor 张政刚李强强
Owner 杭州华杰商品混凝土有限公司
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