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Cement concrete is prove to be more economical than _________

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Cement concrete is prove to be more economical than _________

(a) Aluminium

(b) Steel

(c) Copper

(d) Silica

The question was asked in an interview.

The query is from Properties of Cement Concrete topic in division Cement Concrete Construction of Construction & Building Materials

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The correct option is (b) Steel

Explanation: This is due to the fact that sand and pebbles or crushed rocks, forming the bulk of cement concrete, to the extent of about 80% to 90%, usually available at moderate cost. The form work, which is of Steel or timber, can be used over and over again or for other purposes after it is removed.

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