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A kind of environment-friendly concrete curing agent and preparation method thereof
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An environment-friendly concrete and curing agent technology, applied in the field of building materials, can solve problems such as difficult construction, unsatisfactory curing effect, laborious and laborious, etc., and achieve the effect of convenient operation, large-scale industrial production, and simple process
Active Publication Date: 2020-03-31
SHANGHAI DONGDA CHEM
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Traditional maintenance methods include grass bag maintenance, plastic film maintenance and watering maintenance, etc., but these methods are laborious and laborious, and the maintenance effect is not ideal
[0003] In recent years, the use of concrete curing agents to maintain concrete has become a new trend in the industry. The curing agent can reduce the evaporation of water by forming a dense isolation layer on the surface of the concrete, and improve work efficiency in one construction operation; and for facades and Concrete structures with complex structures are difficult to construct by general methods, and only curing agents can be used for curing
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preparation example Construction
[0072] In another embodiment, the present application also provides the preparation method of the environment-friendly concrete curing agent, which includes the following steps: under stirring conditions, adding hydrogenperoxide to the mixture A, then dropwise adding solution B, solution C, Solution D, carry out a polymerization reaction, adjust the viscosity of the reaction solution with xanthan gum, and then adjust it with water to a solid content of 15wt%, which is an environmentally friendly concrete curing agent;
[0096] Preparation of mixture A: Weigh 100 parts by weight of vinyl glycol polyoxyethylene ether with a number average molecular weight of 1200, 5 parts of sulfonated graphene and 500 parts by weight of water, put them into a polymerization reactor, stir evenly, and heat up to 10℃, standby;
[0097] Preparation of Solution B: Weigh 50 parts by weight of acrylic acid, 20 parts by weight of hydroxyethyl acrylate, 4 parts by weight of mercaptoethanol and 100 parts by weight of water, stir evenly, and prepare dropwise;
[0098] Preparation of solution C: weigh 1 part by weight of reducing agent TP1351 and 200 parts by weight of water, stir evenly, and prepare dropwise;
[0099] Preparation of solution D: weigh 50 parts by weight of styrene and 100 parts by weight of water, stir evenly, and prepare to add dropwise;
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Abstract
The invention relates to an environment-friendly concrete curing agent which is prepared from the following raw materials: unsaturated polyether, an acrylic acidmonomer, an unsaturated aromatic monomer, an acrylatemonomer, an oxidant, a reducer, a molecular weight regulator, a viscosity modifier, a stabilizer and water, wherein number-average molecular weight of unsaturated polyether is 1200-2400. The invention further provides a method of preparing the environment-friendly concrete curing agent. The environment-friendly concrete curing agent has the benefits that the prepared environment-friendly concrete curing agent has a good water retention rate, lower wear loss, shorter drying time, higher compressive resistance ratio and high seepage pressure ratio and is applicable to concrete curing in different projects.
Description
technical field [0001] This application relates to the technical field of building materials. Specifically, the application relates to an environment-friendly concrete curing agent and a preparation method thereof. Background technique [0002] After the concrete is poured, there must be suitable temperature and humidity during the initial setting process to ensure sufficient moisture to fully carry out the hydration reaction of the cement. Proper curing can greatly improve concrete strength, volume stability, durability and other properties. The traditional maintenance methods include grass bag maintenance, plastic film maintenance and watering maintenance, etc., but these methods are laborious and laborious, and the maintenance effect is not ideal. [0003] In recent years, the use of concrete curing agents to maintain concrete has become a new trend in the industry. The curing agent can reduce the evaporation of water by forming a dense isolation layer on the surface of...
Claims
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Application Information
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