Journal Published Online: 01 June 2002
Volume 25, Issue 2

Sidewall Leakage in Hydraulic Conductivity Testing of Asphalt Concrete Specimens

CODEN: GTJODJ

Abstract

Asphalt specimens with irregular sidewalls can require special testing considerations when measuring hydraulic conductivity in a flexible wall permeameter. The hydraulic conductivity of laboratory prepared, dense asphalt concrete with high asphalt cement content (6–8.5% asphalt cement) was measured in the laboratory. Hydraulic conductivities were found to be excessive and were shown to be caused by sidewall leakage. Applying a thin layer of silicone vacuum grease to the sides of the asphalt specimens arrested the sidewall leakage, thereby permitting more accurate measurement of the hydraulic conductivity of the asphalt concrete.

Author Information

Bowders, JJ
Civil and Environmental Engineering, University of Missouri-Columbia, Columbia, MO
Neupane, D
Civil and Environmental Engineering, University of Missouri-Columbia, Columbia, MO
Erik Loehr, J
Civil and Environmental Engineering, University of Missouri-Columbia, Columbia, MO
Pages: 5
Price: $25.00
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Details
Stock #: GTJ11364J
ISSN: 0149-6115
DOI: 10.1520/GTJ11364J