High-effective RD-4 Concrete Antifreeze

The High-effective RD-4 Concrete Antifreeze is an essential product for concrete construction in winter. Incomplete statistics show that there are over one hundred kinds of such products in China. Their components, however, have high salt content and large number of extending quantity. As a result, the alkali-aggregate reaction often occurs, which will produce serious affect on the durability of the concrete buildings. It is also suitable for the construction of the pumping concrete and the commercial concrete mixing stations in winter.

The high-effective RD-4 concrete antifreeze is the fourth generation concrete antifreeze for the construction in winter. It features low extending quantity, water reducing, early strength and freezing protection, etc., and can obviously change the concretes workability and pumpability, with low slump constant loss. It is specially used in the construction of the pumping concrete mixing stations in winter. Compared with other concrete antifreezes, it can reduce remarkable concrete construction cost in winter, resulting in significant economic benefits.

II. Main technical specification of the High-effective RD-4 Concrete Antifreeze

1. Water reduction rate ≥12%

2. Air content ≥2.5%

3. Bleeding rate ≤90%

4. Setting time difference (initial and final setting) -120120min

5. Compressive strength ratio -7-day≥ 12%

28-day≥ 95%

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