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Cemairin B

Air entraining plasticiser

Cemairin B is a liquid air entraining admixture with plasticizing properties specially designed to create microscopic air bubbles that are uniformly distributed in the concrete mix. It also permits reductions in the free water content to be made. Cemairin B is formulated from selected water reducer polymers and synthetic surfactants.

The air-entraining properties of Cemairin B enable it to entrain into concrete controlled quantities of air bubbles of optimum spacing and diameter to give durability under freeze/thaw and improving concrete cohesion without loss in the concrete compressive strength due to its water reduction properties.

Downloads
Cemairin B_TDS.pdf
TDS
Cemairin B_MSDS.pdf
SDS
  • Cemairin B enables air entrainment of 4.5 ± 1.5% in concrete mixes as per specification of Ministry of Transport without loss of strength.
  • Greatly improves cohesion, reduces segregation and bleeding.
  • Increased freeze/thaw cycle resistance.
  • Improves workability and plasticity.
  • Exceptionally effective with aggregate with high fi ne content.
  • Suitable for mixes containing PFA, GGBFS and microsilica.
  • Of particular benefit in crushed aggregate mixes where the improved cohesion of the mix results in minimising sand runs and eliminating bleeding.
  • Chloride free.
  • In concrete mixes for roadways, airport runways and other concrete exposed to potential frost damage.
  • To increase the durability of concrete and its resistance to damage by frost and de-icing salts.
  • To increase cohesion of concrete mixes to overcome bleed, segregation and sand runs where poorly graded aggregate with high fine content needs to be used.

Cemairin B is available in 25 and 250 kg containers supply.

Cemairin B has a shelf life of 12 months from date of manufacture if stored at temperatures between 2°C and 50°C.

The guidance dosage of Cemairin B to achieve air content of 4.5 ± 1.5 % in the concrete mix and 10 - 15% water reduction is 0.20 - 0.40 litre per 100 kg of cementitious material in the mix, including GGBFS, PFA or microsilica. We can go below or above the mentioned dose based on site concrete trials.

Representative trials should be conducted to determine the optimum dosage of Cemairin B to meet the performance requirements by using the materials and conditions in actual use.

Cemairin B complies with ASTM C260, BS 5075, Part 2, EN 934, Part 2 and IS 9103.