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The Final Product Of The Process Is Called Clinker Which Is The Final Product ...

The final product of the process is called clinker which is the final product of the cement produced in the solid form at the desired chemical combination. This is then put through a cement grinding process where the clinker that is produced is mixed with small amounts of calcium sulphate to grind the cement to the desired granularity in order to support the structural application.
Sarah Gaventa (2006) further argues that the major components that decide on the strength and quality of cement include the following
Clinker
Gypsum
Limestone
Blast Furnace Slag
The Blast Furnace Slag is one of the critical elements in contributing to the stability of the chemical reaction in the cement kiln as argued by Sarah Gaventa (2006). Another interesting element with the blast furnace slag is the fact that the effective use of the slag in the cement production process also allows to control the specific gravity of the cement when mixed with aggregate and water to form concrete as well as the ability to reach the desired strength of the cement concrete through the right combination of limestone and gypsum.
The schematic of the cement production process is presented in the fig 2 below.


Fig 2: Cement production Schematic
(Source: http://www.cimnat.com.lb/Production/Model.gif)
3.3: Aggregate production
The aggregate production is the next critical element in the lightweight concrete preparation as the lightweight aggregate is one of the major elements that must be produced at a higher level of precision in order to ensure the desired level of strength and specific gravity are achieved as argued by John P. Ries and Thomas A. Holm (2006).
The rotary kiln method is a traditional method of production which is popular since 1946 as argued by Glenn A. Black (2004). The process of the production involves the application of heat to shale, clay and slate under controlled conditions. The conditions include the pressure and other characteristics that trigger chemical reactions in order to achieve the preferred specific gravity and density of the aggregate component which is then ground to the required granularity as argued by Glenn A. Black (2004).
The sintering method as well as the rotary kiln method typically use the similar base raw material that comprise of a highly siliceous clay or shale that exhibits a bloating characteristic which is achieve through gas-forming minerals which release gas on exposure to the desired level of heat as argued by Glenn B. Black (2004). It is also interesting to note that the preparation of the aggregate is dependant upon the extent to which the pressure and the external temperature is controlled that set the temperature-based chemical reactions as argued by Glenn A. Black (2004).


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