SEDL / STP / STP254-EB / STP44313S

Use of a One-Point Liquid Limit Procedure

Eden, W. J.
Research Officer, National Research Council of Canada, Ottawa, Ont.

Pages: 10    Published: Jan 1960

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Abstract

The Soil Mechanics Laboratory of the Division of Building Research has used a 1-point liquid limit procedure for most routine tests since 1955. The decision to use the shortened method was based on a statistical study of 390 previous tests made by the 3-point method. This paper reviews the analysis of the test records available to the author along with the results of three other independent investigations on 1-point methods. After considering the variability which can be expected in the liquid limit test, the conclusion is reached that no additional significant errors are introduced through a 1-point method. A detailed 1-point test procedure is appended to the paper.