Air-Entertaining Agent Admixture BC 62
Calculate product consumption
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Description
BC62 is used to produce contiguous microscopic air bubbles in concrete in order to increase the durability of concrete in thawing-freezing cycles.
- Producing durable concrete under thawing-freezing conditions and getting dried and moistened alternatively,
- Producing concrete which is resists against defrosting and corrosive chemical solutions and liquids,
- Performing landing fields, highways, parking lots, streets and walkways surfaces,
- Concreting in refrigeration houses,
- Concreting in hydraulic structures, docks, dams, bridges, rail ways , sleepers loading and water reservoirs,
- By reducing concrete density, it can be possible to increase concrete production by using certain quantity of cement and aggregate,
- Concrete containing fly ash with high amount of carbon,
- Concrete containing high amount of superfine materials,
- Concrete containing cement with high alkaline.
- Increasing stability and durability of concrete under harsh climatic conditions and in cold and freezing regions,
- Increasing workability and slump of concrete,
- Reducing concrete permeability and water content in mixture,
- Reducing amount of sand consumed in producing concrete,
- Increasing durability of concrete in corrosive liquids and gases and thawing-freezing cycles,
- Reducing of carbonization of concrete,
- Reducing segregating and bleeding effects,
- Protecting bars,
- Reducing harm caused by undesirable storage conditions.
Use BC62 up to 0.001 of cement weight.
The factors which dosage rate depends on are:
Grading materials and gravel-sand ratio,
Quantity, type and quality of cement used,
Water-cement ratio,
Ambient temperature, temperature of the concrete, and heat generation,
simultaneous use of superplasticizers,
Percent of required air in concrete,
- At the final phase, add BC62 to water content of the concrete mixture. According to the ASTM C 182 standard, the required time for mixing should be:
- 3 minutes for mixing, 3 minutes for being still and 2 minutes for final mixing,
- 13 minutes for stirring gently and 2 minutes for mixing,
- Shaking and 2 minutes for mixing.
- Color: Brown
- Physical state: Liquid
- Density: 0.98 g/cm3
- PH: Approx. 8
- Solubility: Insoluble in water
- Chloride: Nill
Storage: in capped container protected against air and frost, at maximum temperature of 10°C.
Shelf life: 1 year in original package,
Packaging: in 20 litre containers.
- The exact dosage rate may be obtained by trial mixes.
- BC62 commonly reduces the concrete compressive strength slightly. Under these conditions, decrease water-cement ratio or use BC21 –if required- or adjust mixing ratios to compensate for the loss of concrete strength,
- The more the mixing time as compared to the standard level, the less the air bubbles in concrete,
- Before use, keep the product package at temperature of +30° C for 24 hours,
- The more the mixing time, the less the air bubbles in concrete,
- In case of simultaneous use of several admixtures in concrete mix is required, consult Research Center of Beton Chimie.
ASTM C 260

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