ISSN: 1945-7545
CODEN: GTJODJ
Page Count: 7

Measuring the Effect of Mixed Grading on the Maximum Dry Density of Sands

Barton, ME
Senior lecturer and research student, University of Southhampton,

Cresswell, A
Senior lecturer and research student, University of Southhampton,

Brown, R
Graduate engineer, Whitby Bird & Partners, London,

(Received 8 April 1999; accepted 21 September 2000)

Abstract

During cut and fill operations, compaction using sands from different sources may be carried out. The resulting mixed sand will have different compaction characteristics than those of the parent sands. An increase in dry density will result as the grading moves towards more ideal characteristics for dense packing. Laboratory compaction tests using pluviation and the vibrating hammer method have been carried out to measure this increase in dry density. The resulting value is generally significantly greater than the result predicted by taking the mean value of dry density given by the parent sands.

Keywords:
sands, compaction tests, pluviation, cut and fill earthworks

Paper ID: GTJ11288J
DOI: 10.1520/GTJ11288J
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