ISSN: 1945-7545
Page Count: 10

Maximum Dry Density of Cohesionless Soils by Pluviation and by ASTM D 4253-83: A Comparative Study

Lo Presti, DCF
Research associate, Technical University of Turin, Torino,

Pedroni, S
Geotechnical engineer and technician, ENEL DSR-CRIS, Milano,

Crippa, V
Geotechnical engineer and technician, ENEL DSR-CRIS, Milano,

Abstract

Maximum dry densities of a variety of granular soils, ranging from silty sand to sandy gravel (D_max = 9.5 mm), were determined by ASTM Test Methods for Maximum Index Density of Soils Using a Vibrating Table (D 4253-83) and by pluviation. The effects of various test conditions during pluviation were also investigated. The pluviation method offers several advantages compared to that of the ASTM method: higher dry density, no particle crushing, less effect of segregation, and better repeatability. In addition, the pluviation method can be performed with greater facility in less time.

Keywords:
maximum dry density, pluviation, deposition intensity, diffusers, sand spreader

Paper ID: GTJ10239J
DOI: 10.1520/GTJ10239J
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