Cement is an essential construction material for the creation of social capital. Nearly all cement is used as concrete, which is made by mixing cement with sand and water. Concrete is a vital material supporting modern human life. It is used in a wide range of applications and particularly construction of:
Concrete has become the most wide spread building material and the second, after water in consumption, as it is a material with unique features:
Cement is a hydraulic binder, i.e. a finely ground inorganic material which, when mixed with water, forms a past which sets and hardens by means of hydration reactions processes and which, after hardening, retains its strength and stability even under water. Cement when appropriately batched and mixed with aggregate and water, be capable of producing concrete or mortar which retains its workability for a sufficient time and shall after defined periods attain specified strength levels and also possess long-term volume stability.