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If the stress is removed, the specimen shows an instantaneous recovery strain ___ the elastic strain on loading.

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If the stress is removed, the specimen shows an instantaneous recovery strain ___ the elastic strain on loading.

(a) Higher than

(b) Lower than

(c) Equal to

(d) Much greater than

I had been asked this question by my college director while I was bunking the class.

Enquiry is from Creep topic in portion Elasticity, Creep and Shrinkage of Concrete Technology

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The correct option is (b) Lower than

The explanation: If the stress is removed, the specimen shows an instantaneous recovery strain lower than the elastic strain on loading, followed by gradual decrease in strain (creep recovery) over time.

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