JH-2 ordinary water reducing agent

1. Scope of application:

This agent is suitable for cast-in-place concrete, precast concrete, plain concrete, reinforced concrete and prestressed concrete.

2. Implementation standard: GB8076-1997.

3. Dosage and usage:

1. Dosage: The powder accounts for 0.5-1.0% of the cement quality. The user can determine the optimal dosage based on the adaptability of the cement. .

2. This agent should be added to the mixer at the same time as the mixing water, and the mixing time should be ≥3 minutes. The pouring and vibrating of concrete with admixtures are the same as those without admixtures.

IV. Performance and characteristics:

1. The water reduction rate of concrete mixed with this agent is 8-15%, and the 28d compressive strength is 10% higher than that of concrete without this agent. %about. Improve the compactness, impermeability, frost resistance and durability of concrete, and have better pumpability.

2. This agent is suitable for concrete construction where the daily minimum temperature is above 5°C. It is not suitable to be used alone for steam-cured concrete.

3. In cement that uses anhydrite or industrial waste gypsum as a setting agent, the cement suitability test should be carried out before mixing the agent, and it can be used only after passing the test.

5. Packaging, transportation and storage:

1. Packed in woven bags lined with plastic bags, with a net weight of 50±0.5 kg per bag.

2. When handling, care should be taken to prevent the packaging bag from being damaged. If it gets wet and clumps, it should be dissolved in water and used after passing the test.

3. It should be stored in a special warehouse or a fixed place for safekeeping so that it can be easily identified, inspected and picked up. The storage period is two years.

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