Civil Engineering - Concrete Technology - Discussion

Discussion Forum : Concrete Technology - Section 5 (Q.No. 23)
23.
The minimum percentage of chemical ingredient of cement is that of
magnesium oxide
iron oxide
alumina
lime
silica.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
12 comments Page 2 of 2.

Vinay said:   1 decade ago
Ingredient percentage in cement:

Lime 60-65.
Silica 17-25.
Alumina 3-8.
Magnesia 1-3.
Iron oxide 0.5-6.
Calcium Sulphate 0.1-0.5.
Sulphur Trioxide 1-3.
Alkaline 0-1.

Sam said:   1 decade ago
FeO is least 0.5-0.6%.


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