Why can water-reducing agent significantly reduce concrete shrinkage?
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Author : Lzh
Update time : 2023-02-06 13:33:43
What is water-reducing agent? Water-reducing agent , its molecule is composed of the hydrophilic group and hydrophobic group. The molecular structure diagram of surface active agent When the cement is mixed with water, if there is no water-reducing agent, the cement slurry will form a flocculation structure due to the role of molecular cohesion between cement particles, As shown in the following figure, after mixing with water, a part of the free water of the mixing water is wrapped in the flocculation structure of the cement particles, thus reducing the fluidity of the concrete mixture. Suppose the water-reducing agent is added to the cement slurry. The cement slurry is added with water reducing agent to release the free water in the flocculation structure. The adsorption - dispersion and wetting - lubrication of the water-reducing agent make the concrete mixture more mobile without increasing water consumption.
Instructions for use of water-reducing agent 1. The dosage is 0.4%~2.0% of the total weight of the cementitious material, and the commonly used dosage is 0.4%~1.2%; Before use, a concrete trial mixing test shall be carried out to obtain the best mixing amount 2. It is not allowed to mix with a naphthalene series superplasticizer, and a concrete compatibility test shall also be conducted in advance when mixing with other admixtures 3. Slump is highly sensitive to water consumption, and water consumption must be strictly controlled during use 4. Pay attention to concrete surface curing..
Packaging and storage of water-reducing agent 1. TH-928 polycarboxylic acid series high-performance water-reducing agent is a liquid product that is barreled 2. It should be stored in a cool and dry bath to avoid direct sunlight and frost in winter 3. The sealed storage period is 12 months and can still be used after the expiration date is verified to be qualified.
Price of water-reducing agent Water-reducing agent particle size and purity will affect the product's price, and the purchase volume can also affect the cost of the water-reducing agent. A large amount of large amount will be lower. The price of the water-reducing agent can be found on our company's official website.
Water-reducing agent supplier Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) Luoyang City, Henan Province, China, is a reliable and high-quality global chemical material supplier and manufacturer. It has more than 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including water-reducing agents, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for a high-quality and cost-effective water-reducing agent, you are welcome tocontact usor inquire at any time.
