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| Mastour ReadyMix is a Ready mix Concrete, cement and related construction materials and services company Jeddah Saudi Arabia |
The modern cement is also called “Ordinary Portland Cement” because after setting it resembles in color and quality with the “Portland Stone” quarried in Dorset-UK
Portland cement primarily consists of
(1) Calcareous Material : Limestone or Chalk
(2) Argillaceous material : Clay / Shale
(3) Silicious Material : Silica
The process of manufacturing of cement essentially involves the following activities:
(A) Proportioning of raw material
(B) Grinding intimate mixing
(C) Burning in a large rotary kiln at 1400-1450
Due to intense heat, 20 to 30 % of material fuses together forming spherical balls known as “clinkers:. The “clinker” is only one step short of cement. The cement is obtained by grinding the clinkers up to the desired fineness.
The rotary kiln process is also important for making bricks, the main purpose of the kiln is heat and setting it into a correct heat.
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