It is one kind of concrete setting regulator delays the initial setting and final setting time of concrete without affecting the later strength of concrete. It can be used alone or in combination with water reducing agent, which has a certain water reducing effect.
Application Range It is suitable for commercial concrete, mass concrete, pumping concrete, large formwork construction concrete, sliding form construction concrete, road concrete and so on.
Technical Performance 1. The water reduction rate is 8%-10%, the strength of concrete aged 3-28 days is increased by 10%, and the impermeability label is increased by 3 times. 2. Under the same mix ratio, the slump can be increased by 2-3 times, and the water retention, cohesion and pumpability can be significantly improved. 3. The initial condensation is prolonged by 3-6 hours, the final condensation is prolonged by 2-8 hours, and the hydration heat peak is delayed by more than 5 hours. 4. 5% cement can be saved.
Construction Methods and Notes 1. The range of common admixture is 0.8%-1.5%. According to the temperature and the adaptability of cement, it is necessary to determine the appropriate admixture after the concrete mix ratio test in order to obtain the best use effect. 2. FR-H powder can be mixed with cement first, then mixed with aggregate and water. It can also be put into mixer directly with concrete aggregate according to its quantity, and then mixed with water after dry mixing. 3. In the mixing process, the addition of powder or its solution lags slightly behind that of water for 1-2 minutes. 4. Mixed concrete transported by mixing truck can be mixed with water reducing agent. 5. This product should be stored in a dry place, pay attention to moistureproof, but dampness does not affect the use effect.
Packaging and Storage This product is powder. Packed by woven bag within inner plastic bag, 25 kg/bag. This product should be stored in a ventilated and dry warehouse, not damp. It can be used as a solution after dampness. The storage period is one year. After concrete test, the expiration period can be used according to the results.
