Civil Engineering - Building Materials - Discussion

Discussion Forum : Building Materials - Section 7 (Q.No. 16)
16.
The percentage of alumina and silica in good fire clay vary respectively is
25, 75
30, 70
35, 65
All of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
12 comments Page 2 of 2.

Viki said:   6 years ago
Fire clay is used to make fire bricks and is generally found under the coal seams. Fire clay contains two major constituents- silica and alumina, of which, the silica percentage varies from 60 to 70% and alumina varies from 25 to 35%.
(1)

MJM Gcek said:   4 years ago
Thanks @Azeem.


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