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Select the correct match regarding composition of Portland cement
Option: 1
CaO 10 to 20%
Option: 2
SiO2 20 to 25%
Option: 3
Al2O3 30 to 40%
Option: 4
Fe2O3 10 to 20%
Answers (1)
Answer (2)
In cement, % of CaO is 50-60%.of SiO2 is 20 to 25% , of Al2O3 is 5-10%, % of Fe2O3 is 1-2.
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