Discussion :: UPSC Civil Service Exam Questions
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Which one of the following is the correct statement ?
Smaller size of aggregates in a concrete mix :
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A.
provides larger surface area for bonding with the mortar matrix which increases the compressive strength and reduces the stress concentration at the mortar-aggregate interface
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B.
is economical as the concrete mix is more dense
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C.
requires lesser cement for a particular water-cement ratio and hence is economical
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D.
is beneficial as these aggregates can pass through the reinforcement bars more easily
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