Overview
DARAVAIR® is a liquid air-entraining admixture that provides freeze thaw resistance, yield control and finishability performance across the full range of concrete mix designs.
Air is incorporated into the concrete by the mechanics of mixing and stabilized into millions of discrete semi-microscopic bubbles in the presence of a specifically designed air-entraining admixture such as DARAVAIR®. These air bubbles act much like flexible ball bearings increasing the mobility, or plasticity and workability of the concrete. This can permit a reduction in mixing water with no loss of slump. Placeability is improved. Bleeding, plastic shrinkage and segregation are minimized.
Through the purposeful entrainment of air, DARAVAIR® markedly increases the durability of concrete to severe exposures particularly to freezing and thawing. It has also demonstrated a remarkable ability to impart resistance to the action of frost and de-icing salts as well as sulfate, sea and alkaline waters.
Compatibility with Other Admixtures and Batch Sequencing
DARAVAIR® is compatible with most GCP admixtures as long as they are added separately to the concrete mix. In general, it is recommended that DARAVAIR® be added to the concrete mix near the beginning of the batch sequence for optimum performance, preferably by “dribbling” on the sand. Different sequencing may be used if local testing shows better performance.
Pretesting of the concrete mix should be performed before use, as conditions and materials change in order to assure compatibility, and to optimize dosage rates, addition times in the batch sequencing and concrete performance.
Products & Accessories
Products
- Product Name
- Description
- Key Benefits
- Applications Type
Daravair® 1000 is a liquid air-entraining admixture that provides freeze thaw resistance, yield control, and finishability performance across the full range of concrete mix designs.
- Rapid air build suitable for short mix cycles
- Can be used in wide spectrum of mix designs
- Daravair 1000 air-entraining admixture may be used wherever the purposeful entrainment of air is required by concrete specifications.
Daravair® 1400 is a liquid air-entraining admixture that provides freeze-thaw resistance, yield control and finishability performance across the full range of concrete mix designs.
- Rapid air build suitable for short mix cycles
- Excellent performance in paving applications
- Daravair 1400 may be used wherever the purposeful entrainment of air is required by concrete specifications.
Daravair® AT30 is a liquid air-entraining admixture that provides freeze-thaw resistance, enhances the finishability characteristics of concrete and allows concrete producers to accurately control yield.
- Air stability makes it particularly useful for longer transit times
- Functions well across a wide range of concrete materials
- Daravair AT30 is recommended for use in all ready-mix, precast, prestress and other concrete product plants where the intentional entrainment of a specified level of air is required.
Daravair® AT60 is a liquid air-entraining admixture that provides freeze-thaw resistance, enhances the finishability characteristics of concrete and allows concrete producers to accurately control yield.
- Air stability makes it particularly useful for longer transit times
- Functions well across a wide range of concrete materials
- Daravair AT60 is recommended for use in all ready-mix, precast, prestress and other concrete product plants where the intentional entrainment of a specified level of air is required.
Daravair® M air-entraining admixture is an aqueous solution of completely neutralized vinsol resin.
- Readily entrains air under adverse air entrainment conditions
- Uniform air entrainment in paving applications
- Daravair M may be used wherever the purposeful entrainment of air is required by concrete specifications. It is particularly useful in mass concrete and in high cement factor, low slump paving mixes, which require efficient, effective air-entraining admixtures.
Daravair® PAVE 10 is a liquid air-entraining admixture designed to generate specification-quality air systems in paving concrete mixes and provides uniform, predictable performance.
- Uniform, predictable air entrainment in paving applications
- Can be used in wide spectrum of mix designs
- Superior air stability minimizes air loss during placement
- Daravair PAVE 10 air-entraining admixture may be used wherever the purposeful entrainment of air is required by concrete specifications.