General Knowledge - General Science - Discussion
Discussion Forum : General Science - Synthetic Materials (Q.No. 1)
1.
Which is/are the important raw material(s) required in cement industry?
Discussion:
14 comments Page 1 of 2.
BerryDusk said:
2 years ago
Please explain.
(1)
Sachin said:
4 years ago
Gypsum is also used to decrease solidity properties of cement.
(1)
Rajendra prasad said:
6 years ago
Limestone and clay is main raw materials cement but gypsum add reduced rating of cement.
(1)
Neal.B.V said:
6 years ago
Limestone and gypson both are highly used in making cement.
(1)
DIMPAL SHARMA said:
6 years ago
The most common raw meterial used in cement production are;
* Limestone (supplies the bulk of the lime).
* Clay, marl or shale (supplies the bulk of the silica, alumina and ferric oxide).
* Other supplementary materials such as sand, fly ash/pulverised fuel ash (PFA), or ironstone to achieve the desired bulk composition.
During the cement manufacturing process, upon the cooling of clinker, a small amount of gypsum is introduced during the final grinding process. Gypsum is added to control the "setting of cement". Gypsum is a mineral and is hydrated calcium sulfate in chemical form.
* Limestone (supplies the bulk of the lime).
* Clay, marl or shale (supplies the bulk of the silica, alumina and ferric oxide).
* Other supplementary materials such as sand, fly ash/pulverised fuel ash (PFA), or ironstone to achieve the desired bulk composition.
During the cement manufacturing process, upon the cooling of clinker, a small amount of gypsum is introduced during the final grinding process. Gypsum is added to control the "setting of cement". Gypsum is a mineral and is hydrated calcium sulfate in chemical form.
Shubham gaurav said:
6 years ago
Gypsum is also used in cement manufacturing but why the answer is option c?
Prashant wakde said:
7 years ago
Both are very useful in manufacturing the cement.
Hamza saleem said:
8 years ago
Limestone is calcium carbonate and gypsum is also used in making cement.
Siva said:
9 years ago
Gypsum is also used in cement manufacture.
Ashokan said:
9 years ago
Gypsum is the important role. Whenever the percentage of gypsum increased the hardness will be increased.
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