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.

Jahangir badini said:   7 years ago
Lime (CaO) ---> 60 to 67%.
Silica (SiO2) ---> 17 to 25%.
Alumina (Al2O3) ---> 3 to 8%.
Iron oxide (Fe2O3) ---> 0.5 to 6%.
Magnesia (MgO) ---> 0.1 to 4%.
(2)

Usman said:   5 years ago
Magnesium oxide is the right answer. agree with the given answer.
(1)


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