UEA-W improved low-alkali expansion agent (UEA-I)-UEA-W low-alkali expansion agent

-Improved low-alkali expansion agent (-) "Jinyuan" brand - improved low-alkali expansion agent is a new generation of improved technology developed by our company's R&D personnel based on the patent results of the China Building Materials Research Institute. Low-alkali expansion agent is a calcium sulfoaluminate expansion agent. During the concrete mixing process, it is mixed with cement and water and undergoes hydration reaction to form ettringite (3?3?3), which causes the concrete to expand in volume. Under certain reinforcement and adjacent restraint conditions, pre-pressure stress can be established inside the concrete to compensate for the volume shrinkage produced by the concrete. During the hydration process of shrinkage-compensating concrete, calcium vanadium is formed as the main expansion source. This expansion crystal is a stable hydrate and fills the capillary pores, which can reduce the total porosity, thereby enhancing the compactness of the concrete and improving the The impermeability and erosion resistance of concrete are mainly used in civil engineering for waterproofing and crack resistance. It is a material for preparing high-grade waterproof concrete and appropriately extending the spacing of expansion joints and post-cast belts. , Technical performance Dosage: ~ of the total amount of cementitious materials in concrete. Limit expansion rate: ≥. in water, ≥ in air. Compressive strength: no less than benchmark concrete. It can significantly reduce the temperature difference shrinkage of concrete and inhibit cracking of concrete structures. Performance: Good impermeability, frost resistance has been significantly improved, no corrosion effect on steel bars, chemical corrosion resistance, wear resistance, and carbonation resistance are better than ordinary concrete, non-toxic, odorless, and has no impact on water quality. , Notes: Product testing execution standards: - The product should be placed in a dry place and strictly protected from moisture in a sealed state. The product has a shelf life of six months. If it exceeds the shelf life, it must be re-tested and can only be used after passing the test.