Bitumen Selection for Reduction of Downdrag on Piles
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 123, Issue 12
Abstract
Bitumen has been shown to reduce significantly the downdrag load on piles. The problem is to know how to choose the right bitumen for the job. The right bitumen must not deform excessively under gravity stresses during the storage period, must not deform excessively under dynamic stresses due to pile driving, must offer little shearing resistance and therefore downdrag during the soil settlement process, and must not let the soil particles penetrate excessively into the coating. Rational design approaches are developed for each of the four criteria on the basis of the fundamental behavior of bitumen, full-scale downdrag tests on 15 piles at a Northern and Southern site, and a series of laboratory tests. Guidelines are presented for the bitumen selection process and tips are given for the field application of the bitumen coating.
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Information & Authors
Information
Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 123 • Issue 12 • December 1997
Pages: 1127 - 1134
Copyright
Copyright © 1997 American Society of Civil Engineers.
History
Published online: Dec 1, 1997
Published in print: Dec 1997
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