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The sound absorption coefficient of lightweight concrete is nearly ___________ than that of ordinary concrete.

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The sound absorption coefficient of lightweight concrete is nearly ___________ than that of ordinary concrete.

(a) Twice

(b) Thrice

(c) Equal

(d) Eight times

I got this question in quiz.

My doubt is from Different Types of Concrete topic in division Cement Concrete Construction of Construction & Building Materials

1 Answer

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by (65.4k points)

The correct answer is:

(a) Twice

Lightweight concrete has a sound absorption coefficient nearly twice that of ordinary concrete. This is due to its lower density and porous structure, which enhances its ability to absorb sound compared to denser, less porous ordinary concrete.

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