1. Product introduction
JH-F7 high-efficiency retarding pumping water-reducing agent is made of a variety of polymer materials processed by reactive polymers and special composite processes It has strong dispersion of cement particles, improves the high fluidity of concrete, and prepares high-strength concrete to reduce bleeding and segregation, save cement, delay the heat rate of hydration, avoid cracking, and make the concrete denser.
2. Main technical performance:
1. Strong dispersion of cement particles, greatly improving the fluidity of concrete. Within the recommended dosage range, the water reduction rate is 10-25%, and the slump increase value It can reach 10-15cm, and the loss over time is small. The loss is about 2cm in 90 minutes. It can fully meet the sufficient construction time of pumping concrete and the construction of commercial concrete transported over long distances.
2. Significantly improve the workability of concrete, reduce bleeding, improve impermeability, and significantly improve the frost resistance and durability of concrete.
3. The economic benefits are obvious. Under the conditions of the same mix ratio and slump, adding JH-F7 high-efficiency retardant pumping water-reducing agent can save more than 10% of cement.
4. It can delay the setting time of concrete. Adjusting the dosage of JH-F7 high-efficiency retarding pumping agent can effectively adjust the setting time of concrete required for construction. The condensation time can be extended by 2-8 hours, and the heat of hydration can be reduced by more than 20%.
3. How to use:
1. JH-F7 high-efficiency retardant pumping water-reducing agent is suitable for Portland series cement, JH-F7 ordinary type is mixed with 1.2-1.5%, JH-F7 high-efficiency type The dosage is 0.8-1.2%, and the user can determine the optimal dosage based on experiments.
2. Concrete mixed with JH-F7 high-efficiency pumping agent has the same curing system as ordinary concrete.
3. It can be directly added to cement. If the transportation distance is too long, the post-infiltration method can be used, that is, stir the cement and sand for 60-90 seconds, and add JH-F7 high-efficiency pumping water-reducing agent. , remove from the machine after stirring for 60-90 seconds to reduce slump loss.
IV. Packaging and Precautions:
1. This product is divided into liquid and powder. The liquid is packed in iron barrels, with a weight of 230Kg per barrel. The powder is packed in double-layer plastic woven bags, with a weight of each bag. 40±0.5 kg.
2. During storage and transportation, pay attention to moisture, sun and damage. Shelf life is two years. </p
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