Volume No. 5 Issue No.: 2 Page No.: 300-307 October-December 201

 

AN INVESTIGATION ON INFLUENCE OF SOIL ADDITIVES ON TENSIOMETRIC MEASUREMENTS IN SOIL

 

Malaya C.* and Sreedeep S.

Indian Institute of Technology Guwahati, Assam (INDIA)

 

Received on : July 06, 2010

 

ABSTRACT

 

The negative pore pressure in soil termed as suction is used as an important parameter for many of the geoenvironmental applications such as waste containment covers and liners, irrigation scheduling in agriculture, water flow through vadoze zone etc. Tensiometer is one of the most popular methods of suction measurement due to its low cost, simple measurement procedure and robustness. There are several studies indicating the performance of tensiometer in soils. However, it is not clear from the literature whether additives in the form of salts, fertilizers, etc. influence the performance and measurement of tensiometer. For reliable tensiometric measurements, there is a need to understand the performance of tensiometer in additive laden soils. For this purpose, tensiometric measurements are performed in a locally available sandy soil with different amounts of additives. The details of the test set up used in this study and tensiometric measurements are presented in this paper.

 

Keywords : Geoenvironmental, Tensiometer, Matric suction, Soil, Additives, Evaluation.

 

 

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