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The light-weight concrete is prepared by ____________

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The light-weight concrete is prepared by ____________

(a) Mixing Portland cement with sawdust in specified proportion in the concrete

(b) Using coke-breeze, slag as aggregate in the concrete

(c) Mixing Al in the concrete

(d) Mixing Fe in the concrete

I got this question in my homework.

Enquiry is from Special Concrete in portion Special Concrete and Concreting Methods of Concrete Technology

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The correct option is (b) Using coke-breeze, slag as aggregate in the concrete

The explanation: The light-weight concrete is prepared by using coke-breeze, cinder or slag as aggregate in the concrete.

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