what happened to water when mixed with cement When the cemen

what happened to water when mixed with cement. When the cement paste hardens ?

Solution

When water mixed with cement, then cement reacts with water and release 4 compounds called bhouges compounds. namely,

C3A, C4AF, C3S and C2S

These compounds are responsible for the heat of hydration and for the getting strength in early ages and later ages.

cement paste hardening time varies from cement ot cement. For OPC it is 10hr. It is called final setting time. Complete strength will get at age of 28 days.