I. Product Introduction
The air-entraining superplasticizer is mainly used in various cast-in-place concrete structures with special requirements for concrete air content, as well as freeze-thaw resistance requirements for concrete structures.
II.Technical performance
1. High water reduction rate: up to 14~25%, which can greatly improve the fluidity of concrete, and can produce a large number of small, stable bubbles in the concrete.
2. Significantly improve the workability of concrete, with little slump loss over time, no segregation, no bleeding, and good construction performance.
3. The air content of concrete can be designed according to the engineering requirements, the air content is stable, and the loss over time is small.
4. The air-entraining superplasticizer does not affect the various physical and mechanical performance indexes of concrete, so that the durability indexes such as concrete impermeability and freeze-thaw resistance are significantly improved.
5. Low alkali, no chlorine, no corrosion to steel bars; non-toxic, harmless, healthy and safe, and environmentally friendly.
III. Scope of application
1. The air-entraining superplasticizer is suitable for various cast-in-place concrete structures with special requirements for concrete air content, as well as projects with impermeability, waterproof, and freeze-thaw resistance requirements for concrete structures.
2. Prepare a variety of high-fluidity, self-compacting, underwater concrete pouring, pumping concrete.
3. It is widely used in highways, bridges, water conservancy, hydropower, ports, offshore engineering, and industrial and civil construction projects under special geographical environment.
IV. Instructions
1. Conventional dosage: 1.5~3.0% of the liquid (calculated based on the total amount of cementitious materials). When preparing high-strength concrete, increase the dosage appropriately. The construction site must increase the detection link to measure the air content of concrete, and grasp the air content of concrete at any time Range.
2. Accurate measurement, to prevent missing or repeated mixing; when used together with other kinds of admixtures, the compatibility and application effects should be verified by experiments in advance.
3. The user should determine the most reasonable dosage in advance according to the engineering material situation and engineering requirements. Changes in the quality of concrete raw materials can cause fluctuations in its air content. Therefore, sand, stone, cement, fly ash, etc. should be strictly controlled. The quality of raw materials is stable.
V. Packaging, Storage and Transportation
This air-entraining superplasticizer is liquid, packed in plastic barrels, 1 ton per barrel, and can also be transported by tanker. The storage process should prevent leakage, exposure and high temperature. Storage with ironware should be avoided. The storage period is one year. After expiration, it should be tested to determine the use. This product is non-flammable and explosive and should be kept properly.
