Compared with traditional liquid polycarboxylic acid admixture, powder polycarboxylic acid water-reducing agent has the following characteristics:
1, can be widely used in dry mixture, ceramics, coatings, gypsum products, refractory materials and other building materials
2. Facilitate long-distance transportation and reduce storage space
3. High water reduction rate: the water reduction rate can reach 30%
4. Low dosage: 0.1%~0.3%
5. High early strength: 3d strength of concrete can be improved by 100%-400%
6. Effectiveness under low water-cement ratio: ultra-high-strength concrete with high compressive strength can be prepared under the condition that the water-cement ratio is 0.15
7. Green and environmentally friendly products: this product does not pollute the natural environment in the production process and conforms to the national standards.
Application method of powder polycarboxylic acid superplasticizer
1. According to the design requirements of concrete, water consumption or sand rate can be adjusted through experiments to achieve slump, strength and setting conditions all meet the required water-reducing agent content.
2, suitable for high performance concrete, high strength concrete, large flow concrete.When used in concrete higher than C50, raw materials should be selected according to relevant technical specifications, appropriate mixing process should be determined, and a certain amount of experimental data should be obtained.The concrete strength should have a certain surplus coefficient.
