SSC JE Civil Engineering 2018 Set 5 Solved Paper

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Question : 109 of 200

Marks: +1, -0

Which of the following constituents is present in the blast furnace slag?

50% alumina and 20% calcium oxide
45% calcium oxide and 35% silica
25% calcium oxide and 15% silica
25% magnesia and 15% silica

Solution:

Type component	Blast furnace slag
CaO	41.7
SiO $_2$	33.8
T-Fe	0.4
HgO	7.4
$Al_2O_3$	13.4
S	0.8
$P_2O_5$	<0.1
MnO	0.3

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