A retarding additive sorts a protecting coating to the surfaces from the cement particles. The barrier minimizes accessibility by water molecules for the unhydrated cement, that's why it retards the hydration reactions. This review investigates the connection concerning the molecular framework and foaming of poly(ethylene glycol) and poly(propylene glycol) triblock https://concretechemicals30628.shotblogs.com/considerations-to-know-about-concrete-plasticiser-46251496