Journal Published Online: 15 September 2011
Volume 35, Issue 1

Temperature Effects on Suction Measurement Using the Filter Paper Technique

CODEN: GTJODJ

Abstract

This paper presents the results of an experimental study of thermal effects on filter paper calibration curves used to obtain the soil suction. When the temperature is significantly different from ambient values, it is essential to consider the influence of temperature on the filter paper calibration curves to obtain a reliable soil suction measurement. The calibration curve of Whatman No. 42 filter paper was determined at 10°C, 25°C, and 50°C using the vapor equilibrium technique with sodium chloride solutions at different concentrations and the axis translation technique. The experimental results showed a major influence of temperature on the filter paper calibration curves. Using the obtained experimental data a calibration equation was proposed, taking into account the effect of temperature. The obtained calibration curves were then used to determine the soil water retention curve of kaolin clay, which showed lower retention capacity at higher temperatures.

Author Information

Haghighi, Ali
School of the Built Environment, Heriot-Watt Univ., United Kingdom
Medero, Gabriela
School of the Built Environment, Heriot-Watt Univ., United Kingdom
Marinho, Fernando
Escola Politécnica da Universidade de São Paulo, Brazil
Mercier, Baptiste
School of the Built Environment, Heriot-Watt Univ., United Kingdom
Woodward, Peter
School of the Built Environment, Heriot-Watt Univ., United Kingdom
Pages: 8
Price: $25.00
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Details
Stock #: GTJ103575
ISSN: 0149-6115
DOI: 10.1520/GTJ103575