Applications

• Precast concrete
• High performance concrete
• Brides, water and sewage reservoirs, and tunnels
• Marine structures
• Water and sewage treatment plants
• Concretes facing to erosion and abrasion such as channels, Industrial floors

 Advantages

• Reduce bleeding and segregation
• Better workability and workability retention at lower w/c ratio
• Increase compressive strength
• Reduce permeability against water, sulfate and chloride ions.
• High durability
• Improve abrasion resistance
• Improve resistance against freeze-thaw cycles.

Dosage

• F1, F2 is normally dosed at a rate of 6-12% by weight of cement.
• Dosage recommendations depend on the type of concrete, mix design, required microsilica and exposure area.
• Field testing is recommended to determine optimum dosage and effects on both plastic and hardened concrete properties, such as: workability and workability retention, setting time, early and ultimate strength.

Method of Use

• It can be added into the mixer at same time as the mixing water.
• F1, F2 may be added at the end of mixing process by dispensing equipment or it may also be added to the concrete in a drum of ready mix truck, it should be mixed at least 1 minute per m³ of concrete at high speed.

Compatibility

With Cements

• F1, F2 is suitable for use with cement replacement materials e.g. Fly ash, silicafume and blast furnace slag cement concrete.

With other Admixtures

• F1, F2 should not be premixed or used with other admixtures unless receive the approval from manufacturer. We would recommend that SHIMISAKHTEMAN be consulted in such circumstances.