BestGrout CE775

Suitable for the following applications:

• Anchoring bolts.

• Installing machine foundations.

• Installing rail bases.

• Filling under column base plates.

• Wide gaps.

• Large voids.

• Large erosion cavities.

• Special precast components.

• Bridge pier connection abutments, etc.

• High self-flow capability that is easily adjustable.

• No shrinkage during curing and strength development, giving very good dimensional stability.

• Fast strength development, putting it into use sooner.

• Easy to apply with simple tools and methods.

• Can be applied in high-humidity environments.

• Odorless and non-toxic to the health of applicators.

• Non-corrosive to reinforcement, non-toxic, and does not pollute domestic water sources on direct contact.

Surface preparation:

• The substrate must be clean, hard and solid, free of oil, grease, dust, moss/mold, excess cement and other impurities.

• Metal surfaces must be free of rust, oil and grease.

• The surface must be treated beforehand to stop any water leakage (if present).

• Absorbent surfaces must be surface-saturated with water to avoid localized water loss that reduces the material's flow during application.

Mixing:

• Mixing ratio: BestGrout CE775 is mixed with water at the optimal ratio of 100% powder + 11% water (2.75 liters of water per 25 kg bag of powder). The water content may be adjusted within 10-12% according to actual conditions for the grout to reach the optimal consistency and flow.

• Using a paddle mixer maintained at 500-600 rpm, slowly add the powder into a clean container holding the pre-measured water until a homogeneous, bubble-free grout is obtained; minimum mixing time about 3 minutes. Scrape down any dry powder stuck to the container walls into the mixing batch so the grout is mixed evenly and does not stick.

Application:

• Gently stir the freshly mixed grout with a trowel to release air bubbles, then immediately pour it into the prepared formwork continuously to maintain the pressure needed for the material being poured, avoiding air entrapment in the poured grout mass.

Notes:

• The formwork must be checked and ensured leak-free throughout application and before the mixture cures.

• Do not use material that has exceeded the allowable working time.

• The product is intended for structures with a minimum gap of 8 mm.

• The curing procedure must be strictly ensured, as with other cement-based products.

• For large structures thicker than 60 mm, to save material and reduce the heat of hydration, add carefully selected larger aggregates such as gravel, 1x1 stone, etc. Add larger aggregate at 50-100% and keep the maximum mixing water no more than 12% of the original BestGrout CE775 weight. Trials must be conducted before use.

Cleaning:

• Clean tools with water after application and before the material cures.

Safety guidance:

• BestGrout CE775 is alkaline and may cause irritation to sensitive skin on prolonged contact. Wear a mask, gloves and safety goggles when using the product.

• If splashed into the eyes, nose or mouth, rinse immediately with plenty of clean water several times before going to the nearest medical facility for timely and proper treatment.