Polycarboxylic acid superplasticizer is a kind of superplasticizer with the most cutting-edge, the highest technology content, the best application prospect and the best comprehensive performance in the world. Comparison with the performance of similar products at home and abroad shows that the polycarboxylic acid superplasticizer has reached the international advanced level in terms of technical performance indicators and cost performance. It is a series of water-reducing agents with excellent performance that integrates water reduction, slump retention, reinforcement, anti-shrinkage and environmental protection. It can completely solve the weaknesses of high-strength, high-performance concrete with high viscosity and poor construction performance. It is used to prepare high-strength , An ideal admixture for high-performance concrete. It can be compounded with various admixtures to form a multifunctional admixture, such as pumping agent, early strength agent, impermeable waterproof agent, retarder, etc.
1.Low dosage and high water reduction rate. When the dosage is about 1.0%, the water reduction rate exceeds 35%.
2. Early strength and high strength, the early strength is increased by more than 50%, and the 28-day strength is increased by more than 30%, especially suitable for high-volume fly ash concrete. In the range of low dosage, the strength increase of this kind of water reducer increases obviously with the dosage, but the strength will not increase further with the dosage after exceeding the optimal dosage.
3. Low slump loss, the slump retention rate is good at 1h, it remains unchanged at low positive temperature, the expansion degree also increases, the temperature exceeds 20 degrees, the slump at 1h is slightly lost, but it also remains at 95% Above, the temperature exceeds 30 degrees, and the slump retention value at 1 hour is still 93%.
4. The workability of the concrete is good: even if the concrete prepared with the polycarboxylic acid superplasticizer has high slump, there will be no obvious segregation and bleeding phenomenon, and the concrete appearance color is the same. It is extremely beneficial for the preparation of high-flowing concrete, self-leveling concrete, self-compacting concrete and clear water facing concrete. When used to prepare high-grade concrete, the concrete has good workability and cohesiveness, and the concrete is easy to mix.
5. The concrete mixed with this product has good durability, in filling, stability, pumpability, strength compactness, sulfate resistance, alkali-aggregate reactivity, frost resistance, shrinkage resistance And creep are better than ordinary water reducers.