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 1 of 3.
Akash said:
4 years ago
A should be the correct option.
(2)
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)
Bugti Mehdi said:
2 years ago
Option A is correct.
The main constituents of Portland cement are argillaceous and calcareous materials.
Argillaceous materials are clay, shale, etc.
Calcareous materials are limestone, Chalk, etc.
The main constituents of Portland cement are argillaceous and calcareous materials.
Argillaceous materials are clay, shale, etc.
Calcareous materials are limestone, Chalk, etc.
(1)
Narendra said:
4 years ago
I think A is the correct answer.
(1)
Shivram said:
4 years ago
A is the correct answer.
(1)
Midhun Madhav said:
8 years ago
The answer is B because the cement manufacturing process basically take 3 materials
1. Calcareous
2. Argillaceous
3. Gypsum.
The Limestone and Clay mentioned in Option A is correct but they are only 2 of the materials used for production. Marl, Chalk can also be used as other sources other than limestone. This is the reason it is Option B.
Most important part is Calcareous materials are those which contain lime and not limestone.
1. Calcareous
2. Argillaceous
3. Gypsum.
The Limestone and Clay mentioned in Option A is correct but they are only 2 of the materials used for production. Marl, Chalk can also be used as other sources other than limestone. This is the reason it is Option B.
Most important part is Calcareous materials are those which contain lime and not limestone.
(1)
Bibek said:
4 years ago
I think A is the correct answer.
(1)
Billu said:
6 years ago
Pozzolana contains silicious properties. So why not D?
(1)
Rajan pokhrel said:
6 years ago
Option A Gypsum is only a small amount so the correct answer is limestone and clay.
(1)
Raj yadav said:
7 years ago
I think A is correct option.
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