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Discuss the effects of dropping the hammer in a NZ Standard Compaction Test from a height...

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Civil Engineering

Discuss the effects of dropping the hammer in a NZ StandardCompaction Test from a height of LESS THAN 300 mm.
What effect does this have on the Optimum water content?
Plot a graph of energy versus hammer height from 250 mm to 400 mmin steps of 50 mm to illustrate your answer. Assume the mould,hammer mass, number of layers (3) and blows (27) are all constants.                                                                                           [10 marks]

Answer & Explanation Solved by verified expert
3.7 Ratings (686 Votes)
If we are reducing the height of the drop of hammer thenenergy transferred by hammer is reduced and we required more blowsto the compact specimens    See Answer
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