Question

In concrete mix design allowance for bulking of sand is necessary in case of

Answer 1

Answer:

A. Workability of the concrete mix decreases with an increase in the moisture ...

C. Bulking of sand depends upon the fineness of grains.

Answer 2

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If the sand is wet, particles get a covering of water, which due to surface tension, keeps them separately and thus causes an increase in volume known as bulking, when it is wet, so that necessary correction can be applied in quantity while measuring & adding sand.