1.

The sound absorption coefficient of light weight concrete is nearly __________(a) Twice(b) Thrice(c) Four times(d) Six timesThis question was posed to me in unit test.My doubt stems from Light Weight Concrete in division Special Concrete and Concreting Methods of Concrete Technology

Answer»

The correct CHOICE is (a) Twice

Explanation: The SOUND absorption coefficient of light weight concrete is nearly twice. Lightweight aggregates used in structural lightweight concrete are typically expanded CLAY materials that have been HEATED in a ROTARY kiln to develop a porous structure.



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