Applicability and accuracy of the initially dry and initially wet contact filter paper tests for matric suction measurement of geosynthetic clay liners

作者：Acikel A S^*; Singh R M; Bouazza A; Gates W P; Rowe R K

来源：Geotechnique, 2015, 65(9): 780-787.

DOI：10.1680/geot.13.P.222

• geosynthetics
• geotextiles
• laboratory tests
• suction
• time dependence

An initially wet contact filter paper test (IW-CFPT) and an initially dry contact filter paper test (ID-CFPT) were used to examine the wetting paths of geosynthetic clay liners, including non-contact filter paper tests for comparative purposes. The CFPTs were applied to both geosynthetic clay liner faces to examine the effect of geotextile type on capillary contact. The non-woven geotextile face was found to be more likely to cause capillary breaks than the woven geotextile face. Both IW- and ID-CFPTs were found to be applicable to geosynthetic clay liners within their accurate upper matric suction measurement limits of 146 kPa and 66 kPa, respectively.

• 出版日期2015