Cemairin 260 CLSM
Air entraining agent for concrete
Cemairin 260 CLSM is an air entraining admixture for concrete, formulated from selected polymers specially designed to create microscopic air bubbles that are uniformly distributed in the concrete mix.
This effect can be used to improve concrete cohesion and resistance to freeze-thaw cycles. Cemairin 260 CLSM is also suitable for use in Controlled Low Strength Material (CLSM) mortar or concrete, where enhanced flowability, reduced density, and improved workability are desired.
- Greatly improves cohesion, reduces segregation and bleeding.
- Increased freeze/thaw cycle resistance.
- Improves workability and plasticity.
- Exceptionally effective with aggregate with high fine content.
- Suitable for mixes containing PFA, GGBS and microsilica.
- 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.
- Improve workability and enhance flowability in controlled low strength mortar or concrete.
Cemairin 260 CLSM is available in 25 litre pails, 210 litre drums and 1000 litre bulks supply.
Cemairin 260 CLSM has a shelf life of 12 months from date of manufacture if stored at temperatures between 2oC and 50oC.
The recommended dosage of Cemairin 260 CLSM to achieve air content of 5 ± 2% in the concrete mix is 0.3 - 1.0 litre/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 260 CLSM to meet the performance requirements by using the materials and conditions in actual use.
Cemairin 260 CLSM complies with ASTM C260.
