Autogenous shrinkage usually takes area since the portland cement hydrates and without having loss of drinking water with the blend instead of the drying shrinkage course of action. Admixtures may cut down such a shrinkage but will not be specially intended to achieve this. Air Entraining Agents: Introduce air bubbles https://www.tjcyindustrialchem.com/news/cement-additives-and-concrete-admixtures-key-differences.html