WATER REDUCERS AND AIR ENTRAINING AGENTS
Please compare air-entraining agents and Pozzolith [a trading name of one particular water-reducing admixture]. Air-entraining agents incorporate air into the concrete mix to improve resistance to freezing and thawing or salt scaling. Still, often they are added to improve workability. Since air provides no strength, a small amount of additional cement is often required to compensate for the strength that might otherwise be lost. However, the incorporation of air makes it possible to reduce the