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.
Agha Bilal said:
9 months ago
Option A is the correct answer.
Bir Bahadur Thokar said:
1 year ago
I think A is the correct option.
Muhammad Rafique Rana said:
4 years ago
To make Portland cement, clay, shale and limestone is ground to a powder and baked in a kiln. The baked mixture forms clods (clinkers), which are then ground up and mixed with gypsum.
Abhishek gowda said:
7 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.
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.
Vivek said:
1 decade ago
Option B may be correct but one should also bear in the mind that for ordinary cement concrete there are two important ingredients
1) argillaceous.
2) calcareous.
1) argillaceous.
2) calcareous.
Kur said:
8 years ago
A is right.
Niraj kumar said:
8 years ago
Option A is correct.
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.
Nirmal said:
8 years ago
Why not D?
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