BCA SEC(K) Practice Questions - BCA Skills Evaluation Certificate (Knowledge) SEC(K) Exam

What is the main purpose of coarse aggregate (stone or gravel) in a concrete mix?

To colour the concrete surface only To provide bulk, strength and reduce shrinkage of the hardened concrete To replace water entirely in the mix To act as the sole waterproofing membrane

Correct Answer:

To provide bulk, strength and reduce shrinkage of the hardened concrete

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