C2S

C2S (dicalcium silicate) is a ceramic compound belonging to the silicate family, commonly encountered as a major phase in portland cement clinker and calcium silicate materials. It is widely used in construction and infrastructure applications, particularly in cement-based composites, concrete products, and specialized refractory materials where moderate strength and durability are required. Engineers select C2S-containing systems for cost-effectiveness and long-term performance in structural applications, though it develops strength more slowly than tricalcium silicate (C3S) and is preferred in applications where heat generation during hydration must be minimized.