PNF compound waterproofing agent
Product introduction
PNF compound waterproofing agent is an admixture product composed of water reducing agent, plastic micro-expansion organic polymer and inorganic chemical components. This product can greatly improve the crack and impermeability of concrete, is an excellent concrete (mortar) composite multi-functional impermeability and waterproofing agent, can be applied to a variety of reinforced concrete construction technology, especially suitable for pumping process.
Main properties and dosage
1. The agent has the properties of micro-expansion, impermeability and crack prevention. After addition, swelling crystalline hydrate is generated due to hydration, which makes the mortar and concrete produce micro expansion and promotes the density of the structure. At the same time, in the case of constrained expansion, the appropriate compressive stress can be generated, which can offset the tensile stress caused by shrinkage and temperature difference of concrete, so as to effectively prevent the shrinkage and cracking of mortar and concrete.
2. The agent reduces the water-binder ratio of concrete by high efficiency water reduction, can significantly improve the workability of concrete, greatly improve the fluidity of concrete, prevent the concrete from bleeding and segregation, make the concrete appearance smooth and beautiful, and can significantly improve the strength of concrete at various ages.
3. It can improve concrete compactness, impermeability, freeze-thaw resistance, improve concrete durability, and prevent steel corrosion.
4. Good adaptability with different kinds of cement, especially suitable for Portland cement, ordinary Portland cement, slag Portland cement and other varieties.
5. The impermeability of concrete mixed with this agent can be increased by 2 times compared with that without, and the impermeability label is >P12. Its 28d compressive strength can be increased by 10-15%, saving more than 10% of cement.
6. This product has anti-freezing type, which can reduce the freezing point of liquid phase in concrete in winter construction, promote cement hydration and improve concrete strength.
7. The content of this product is generally 4.0-6.0% of the amount of concrete cementing material, and it can be adjusted appropriately according to the actual project requirements.
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