Air-entraining admixtures entrain small air bubbles in the concrete, bubbles that possess a fine order and structure. The major benefit of air entrainment is enhanced durability in freeze-thaw cycles, especially relevant in cold climates. While some compressive strength loss typically accompanies increased air in concrete, it generally can be overcome by reducing the water-cement ratio via improved workability (due to the air-entraining agent itself) or using other appropriate admixtures.
an aqueous solution of Vinsol Resin designed to offer air entrainment in precast concrete products.
an aqueous, highly concentrated, synthetic admixture designed to offer superior air entrainment in precast concrete products.