Accelerating Admixture (powder) BC 31

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BC31 is an effective agent for accelerating cement initial and final setting and concrete hardening. This quality is important for concreting in cold weather.

  • Concreting in cold weather
  • Repairing and renewing where short setting time needed
  • Performing slope structures
  • Producing pre-cast concrete structures
  • Concreting for making concrete structures impermeable
  • Decreasing the setting time and attaining higher initial and final strength at early ages
  • Preventing concrete from freezing
  • Increasing the concrete strength during the first three days up to 30%
  • Accelerating the final finishing operation and preparation of the concrete surface
  • Accelerating the mould opening and loading operation
  • Economizing concreting operation
  • Reducing the damages caused by ambient temperature fluctuations
  • Increasing the hydration temperature

According to the required setting time, use BC31 up to 2% of cement weight

  • To achieve the optimal result, add BC31 directly to the dry concrete ingredients, then add water to the mixture and continue mixing quickly then start concreting operation. At last, continue mixing for more 2 minutes.
  • Color: Milky
  • Physical state: Powder
  • Solubility: In water
  • Density: 1.2 g/cm3
  • PH: approx. 11
  • Chloride: Nill
  • Storage: protected against air and moisture, at the maximum temperature of 50°C
  • Shelf life: 1 year in original package
  • Packaging: 25 Kg bags
  • If dosage rate is more than 2% of cement weight, the exact dosage rate may be obtained by trial mixes
  • If the percentage of cement increases, the dosage rate of BC31 varies according to the results of trial mixes
  • If it meets eyes, wash them immediately with pure water
  • When simultaneous use of several admixtures in concrete mix is required, consult Research Center of Beton Chimie

(ASTM C 494, (type C
(ASTM C 1141 (type I, grade 1

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