Browse > Article
http://dx.doi.org/10.5762/KAIS.2018.19.6.68

The proposal on the new method for accurate to measure the plastic limits  

Ko, Jae-Min (Division of Civil engineering, Chonbuk University)
Lee, Byung-Suk (Division of Civil engineering, Chonbuk University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.6, 2018 , pp. 68-79 More about this Journal
Abstract
An examination of the characteristics of the ground material in is very important in a ground investigation. Casagrande classified soil using the material properties of soils. The liquid-plastic limit test is useful for obtaining basic information of soil, and is an effective method for classifying silt and clay, as well as the material properties, such as shear strength, shrinkage, and expansion. Unlike the liquid limit test, the plasticity limit test is due to the ambiguity of the test procedure. Many geotechnical engineers and scholars have questioned the test results. In this study, a new plasticity limit method was used to compare with the thread rolling method with kaolinite, ilite and bentonite at a certain ratio, and samples were collected from the west coast of Korea. As a result of the comparison, the test value of the new test method showed high reproducibility because the error range of the test value of the conventional thread rolling test was only 10% but the error range of the new test values decreased to 2%. The difference in the slope of the existing plasticity test values was 0.1519 ~ 0.1925, and the results of the test were similar or coincided with each other. Aone - point method was proposed to make it easier to apply the new test method.
Keywords
Atterberg Limit; consistency limit; Fall cone test; Plastic limit; Thread Rolling;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Houlsby, G. T., "Theoretical analysis of the fall-cone test", Can. Geotech. J., vol. 32, no. 2, pp. 111-118, 1982. DOI: https://doi.org/10.1680/geot.1982.32.2.111   DOI
2 Wood, D. M. Wroth, C. P., "The use of the cone penetrometer to determine the plastic limit of soils," Ground Eng., vol. 11, no. 3, pp. 37, 1978.
3 Sherwood, P. T., "The reproducibility of the results of soil classification and compaction teests," TRRL Report LR339. Crowthorne, UK: Transport and Roda Research Laboratory, 1970.
4 Feng, T. W., "Fall-cone penetration and water content relationship of clays", Geotechnique, vol. 50, no. 2, pp. 181-187, 2000. DOI: https://doi.org/10.1680/geot.2000.50.2.181   DOI
5 Medhat, F & Whyte, I. L., "An appraisal of soil index tests," Engeng Geol, Special Publication 2, pp. 317-323, 1986. DOI: https://doi.org/10.1144/GSL.1986.002.01.55
6 Feng, T. W., "A linear log d-log w model for the determination of consistency limits of soils", Can. Geotech. J., 38, pp. 1335-1342, 2001. DOI: https://doi.org/10.1139/cgj-38-6-1335
7 Feng, T. W., "Determining the consistency limits of high plasiticity clays by the BS fall cone method," gound engineering, 2004.
8 Hansbo, S., "A new approach to the determination of the shear strength of clay by the fall-cone test", Royal Swedish Geotechnical. Institute Proc., Royal Swedish Geotechnical Institute, Stockholm, 14, pp. 7-47, 1957.
9 Sivakumar, V. Et al., "A new method of measuring plastic limit of fine materials," Geotechnique 59, no. 10, pp. 813-823, 2009. DOI: https://doi.org/10.1680/geot.2009.59.10.813   DOI
10 Stone, K. J. L., Phan, K. D., "Cone penetration tests near the plastic limit," Geotechnique, vol. 45, no. 1, pp. 155-158, 1952. DOI: https://doi.org/10.1680/geot.1995.45.1.155   DOI
11 Harison, J. A., "Using the BS cone penetrometer for the determination of the plastic limits of soils", Geotechnique, vol. 38, no. 3, pp. 433-438, 1988. DOI: https://doi.org/10.1680/geot.1988.38.3.433   DOI
12 Skempton, A. W, Northey, R. D., "The sensitivity of clays," Geotechnique 3, No. 1, 30-53, 1952. DOI: https://doi.org/10.1680/geot.1952.3.1.30   DOI
13 Wood, D. M., "19oil behaviour and critical state soil mechanics", 1st edn. Cambridge: Cambridge University Press.
14 Feng, T. W., "Using a Small Ring and a Fall-cone to Determine the Plastic limit", J. Geotech. Geoenviron. Eng., 2004, vol. 130, no. 6, pp. 630-635, 2004.   DOI
15 Tefra, T. H., "Measurement of plastic limit of cohesive soils," Statens vegvesen Nr. 208, 2013.
16 Saxena. M., "An Energy Based Approach to Determine the Plastic Limit of Fine-Grained Soil using Modified Cone penetrometer," Procedia Technology, 25, pp. 162-169, 2016. DOI: https://doi.org/10.1016/j.protcy.2016.08.093   DOI