Compacting is done to:(a) Place concrete on flat surface(b) Remove air bubbles(c) Place concrete on sloping surface(d) Introduce air bubblesI had been asked this question at a job interview.This intriguing question comes from Manufacture of Concrete in portion Building Construction of Basic Civil Engineering

Compacting is done to:(a) Place concrete on flat surface(b) Remove air

1.	Compacting is done to:(a) Place concrete on flat surface(b) Remove air bubbles(c) Place concrete on sloping surface(d) Introduce air bubblesI had been asked this question at a job interview.This intriguing question comes from Manufacture of Concrete in portion Building Construction of Basic Civil Engineering
Answer» The correct ANSWER is (b) Remove air bubbles For explanation: While mixing of concrete, sometimes air gets trapped in it in the FORM of bubbles. These have to be REMOVED to ensure strength parameters are MET with.

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