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States of Matter

In the design...

Question

In the design of a reinforced concrete beam the requirement for bond is not getting satisfied. The economical option to satisfy the requirement for bond is by

A

bundling of bars

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B

providing smaller diameter bars more in number

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C

providing larger diameter bars less in number

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D

providing same diameter bars more in number

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Solution

The correct option is B providing smaller diameter bars more in number
Bond strength depends on surface area of embedded bar. For the same cross-sectional area, if we provide large number of small diameter bars, surface area will be more.
Hence, demand for bond will be satisfied.

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