Refers to the fact that the workability and concrete dosage of concrete will not change the standard, which can reduce the mixing water demand and improve the rebound of concrete; Under changing standards, the amount of water reducing agent used in concrete can be saved.
According to its water reduction and improvement potential, it is divided into general water reducing agent (also known as plasticizer) and high-efficiency water reducing agent (also known as superplasticizer), and They are divided into first-class products and qualified products.
According to the composition materials, it is divided into: (1) aqueous sulfonates; (2) polycyclic alicyclic salts; (3) water-soluble resin sulfonates Salts.
General water-reducing agents should be used in concrete with a daily minimum temperature of about 5℃ for decoration projects. High-efficiency superplasticizer is suitable for use in concrete with a daily minimum temperature of around 0°C for decoration projects, and is suitable for producing large flow concrete, high-strength concrete and steam-cured concrete.
At the concrete construction site, water-reducing agent is only used as a water-reducing agent. Usually the powder dosage is 0.5 to 1.5% of the concrete dosage, and the liquid dosage is The amount is 1.5 to 3% of the concrete dosage.
Reduce water. To put it simply, reduce the dosage of water.
Simply speaking, water-reducing agent has super plastic, water-reducing and improving effects on cement concrete. It can improve various performance parameters of concrete and enhance working characteristics.
Generally, water-reducing agents have significant water-reducing and refining effects, with a water-reducing ratio of 14% to 30%, which can be improved under low water-cement ratio conditions. Fluidity of cement slurry and concrete mixture. When the water-cement ratio is maintained unchanged, the workability and water-solubility of concrete can be greatly improved; while maintaining the same strength and slump as standard concrete, concrete can be saved, the project budget can be reduced, and the construction can be improved. Quality...
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