Civil Engineering - Concrete Technology - Discussion
Discussion Forum : Concrete Technology - Section 4 (Q.No. 16)
16.
Ordinary Portland cement is manufactured from
Discussion:
27 comments Page 2 of 3.
Ajay nakum said:
8 years ago
The manufacturing process of Ordinary Portland cement is made primarily from calcareous and argillaceous materials, such as limestone or chalk, and from aluminium oxide, silica oxide, ferric oxide and magnesium oxide found as clay or shale.
Niraj kumar said:
8 years ago
Option A is correct.
Kur said:
8 years ago
A is right.
Raj yadav said:
7 years ago
I think A is correct option.
Avinash Reddy said:
7 years ago
A is correct lime stone (calcareous) and clay (aluminum, silica, ferric oxides) because 5% of gypsum is added just to overcome quick setting of cement.
Vikki said:
7 years ago
Gypsum is a important part of cement so I think B option is a correct explanation because without gypsum cement set imideatly after mixing water.
(2)
Abhishek gowda said:
6 years ago
Only 2 to 3% gypsum is added to the cement.
So, I think option A is correct.
So, I think option A is correct.
Rajan pokhrel said:
6 years ago
Option A Gypsum is only a small amount so the correct answer is limestone and clay.
(1)
Billu said:
6 years ago
Pozzolana contains silicious properties. So why not D?
(1)
Akash said:
5 years ago
A should be the correct option.
(2)
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