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Wisam Fawzi Abdulkareem
Concrete is a heterogeneous mixture of aggregates, cement and water with some blanks and some other additives can be added to obtain certain properties. The proportions of these materials are chosen in the concrete mix according to the type of work required and the materials available. With the mixing of these materials together, the concrete, which begins with progressive stiffness, is obtained over time to become solid and strong. Its strength varies according to the basic components, as well as by the casting method during the casting and the quality of the treatment.