IndiaBIX

Civil Engineering - Building Materials - Discussion

Discussion Forum : Building Materials - Section 1 (Q.No. 29)
Building Materials
29.
For the manufacture of Portland cement, the proportions of raw materials used, are
lime 63% ; silica 22% ; other ingredients 15%
lime 22% ; silica 63% ; other ingredients 15%
silica 40% ; lime 40% ; other ingredients 20%
silica 70% ; lime 20% ; other ingredients 10%.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
10 comments Page 1 of 1.
Amit garg said:   1 decade ago
Cement manufacturing needs two types of materials:

1. Calcarius material.
2. Argilacious material.
Nitu said:   10 years ago
Lime:silica:alumina:metal oxide = 63:22:6:3.
(2)
Vamsi said:   9 years ago
Well said @Nitu & @Amit.
Anupam said:   9 years ago
Thank you @Nitu & @Amit.
Krishna chaitanya said:   8 years ago
Thanks @Nitu & @Amit.
JALAL said:   8 years ago
LIME : 63%.
SILICA: 22%.
ALUMINA:6%.
CALCIUM: 5%.
IRON OXIDE: 4%.
Anil said:   8 years ago
LIME : 63%.
SILICA: 22%.
ALUMINA:6%.
CALCIUM: 5%.
IRON OXIDE: 4%.
Gypsum:3-5%
Varinder said:   8 years ago
Lime(CaO)---> 60-67%.
Silica(SiO2)---> 17-25%.
Aluminium(Al2O3)---> 3-8%.
Iron oxide (Fe2O3)---> 0.5-6%.
Magnesia(MgO)---> 0.1-4%.
Sulphur trioxide (SO3)---> 1-2%.
Soda and potash (Na2O+K2O)---> 0.5-1.3%.
Gypsum (CaSO4.2H2O)---> 3-4%.
(2)
Ramvir said:   7 years ago
Good, Thanks @Varinder.
Sureka S said:   3 years ago
Thank you all for explaining the answer.
(1)
Post your comments here:

Your comments will be displayed after verification.

Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers