China Concrete

Detailed introduction to concrete admixture:Main properties 1. Sodium sulfate content is lower than 5%, alkali- aggregated reaction can be avoided.2. It has good water reducing and dispersing effect. Water reducing ratio will be 18% (low dosage) to 28% (high dosage). Flow of cement paste and concrete can be enhanced at lower water/cement ratio due to its high water reducing ratio.Workability and flow can be improved greatly at a fixed water/cement ratio, without bleeding and isolating. Meantime, wrapping force between steel bar and concrete is increased.3. Adding 0.5%~1.0% (based on cementing materials) of the product in concrete and keeping the strength of concrete unchangeable, cement dosage can be saved by 20%~30%.4. When adding 0.5%~1.5% of the product in concrete and keeping cement dosage and concrete slump unchangeable, the compressive strength of concrete can be increased 50%~100% at 1d, 40%~80% at 3d, 25%~70% at 7d, 20%~60% at 28d and 10%~50% at 90d.5. The product has broad adaptability to cement and other cementing materials. The mechanic properties of concrete can be improved to wide extent. No obvious effect on concrete shrinkage.6. It can be used to prepare C80 ultra-high strength concrete with slump of 18~20cm or to prepare C60 high strength pumping concrete with slump of 22~25cm.It can be also used to prepare high performance concrete and high carbonization resistant concrete. Used together with air entraining agent, freeze-thawing cycle resistant concrete can be prepared, its freeze-thawing cycle is over 300 times.