Civil Engineering MCQJE Level Civil Engineering
Bulking of sand is maximum at a moisture content of approximately:
Building MaterialsBuilding MaterialsMEDIUM
Choose the correct answer
A
0–1%
B
4–8%
C
12–15%
D
20–25%
Correct Answer
B. 4–8%
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Sand bulks due to surface tension of water films between grains creating apparent cohesion and increasing volume. Maximum bulking occurs at about 4–8% moisture content, causing volume increase of up to 20–30%. In dry or fully saturated state bulking disappears. Must account for bulking in field batching by volume.
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