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Building Materials

Q1:

Plastic asphalt is

A used as a water proofing layer over roof

B a mixture of cement and asphalt

C a natural asphalt

D a refinery product.

ANS:B - a mixture of cement and asphalt

Plastic asphalt = a mixture of cement and asphalt.
Mastic asphalt = used for damp proof and waterproof layer.
Plastic bitumen = used for filling cracks in masonry structure using asbestos powder as a filler.



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