Tech Brief: Air Entrainment and Concrete Durability Air is entrained in concrete during batching either through the use of air-entraining cement or through the addition of an air-entraining admixture (AEA) (AASHTO M 154, ASTM C260 C260 M)
Air Entrained Concrete: Why It Matters and How to Use Air entrainment in concrete can be achieved in different ways The most common method is adding chemical air-entraining admixtures during mixing These agents stabilize small air bubbles Air-entraining cements already contain surface-active agents that produce air voids during hydration
Air Entrainment in Interior and Exterior Concrete Slabs Exposing a non-air-entrained slab to freezing and thawing will leave this concrete vulnerable to damage Lastly, the exterior slab cast in a mild to severe exposure condition should be air entrained and only given a broom-textured finish
What Is Air Entrained Concrete and When to Use It Air entrained concrete uses tiny air bubbles to resist freeze-thaw damage Learn how it works, when to use it, and the strength trade-offs involved
Air entrainment - Wikipedia Air entraining was introduced in the 1930s and most modern concrete, especially if subjected to freezing temperatures, is air-entrained The bubbles contribute to workability by acting as a sort of lubricant for all the aggregates and large sand particles in a concrete mix
What Is Air Entrainment and Why Is It Important? - Engineer Fix Effective air entrainment requires precise control because the volume of air introduced directly impacts both durability and strength If the air content is too low, the material lacks enough pressure relief chambers to withstand the freezing action, rendering the effort ineffective