Samples collected from both Gabal Khylia(Middle Eocene) carbonates and Bir Gindaly(Upper Eocene) shales to study their validity for cement industry.Cement is a finally ground hydraulic binding medium for mortar and concrete consisting substantially of compounds calcium oxide with silicon dioxide, aluminum oxide and ferric oxide.
The purpose of the present paper is to show how composition of raw mix for cement quality depends on chemical composition.To achieve this work;manufacture of Portland cement steps,raw material calculations, clinker process,reactions occurring in Rotary Kiln, calculation of clinker phases, properties of cement phases were done. Lime saturation factor (L.S.F.), silica modulus (S.M) and Alumina Iron ratio (A/F) werecomputed showing that the studied raw materials are suitable for cement industry.