A retarding additive types a protecting coating on the surfaces of the cement particles. The barrier decreases accessibility by water molecules for the unhydrated cement, as a result it retards the hydration reactions. 8%, one% and one.two% by fat of cement have been prepared along with a Command mix (wa-ter/cement https://gunnerovfnt.total-blog.com/indicators-on-concrete-retarder-you-should-know-57544489