An analysis of causes of dispersions in the results of geomaterial tests

Kazuaki Hioki, Kenta Hattori, Kohei Sawa, Yoshihisa Nakayama, Shinya Inazumi

研究成果: Article査読

抄録

In this study, an analysis was made of the causes of variations in the results of Particle size distribution test (sedimentation analysis), liquid limit test, plastic limit test and unconfined compression test in which the coefficient of variation was nearly 5% or higher during proficiency testing of geomaterial tests. The analysis was made based on the results of a questionnaire survey conducted at the same time as the proficiency testing. As a result, it was verified that not only the experience of test engineers but also complying with standards, and checking, inspecting and correcting test apparatuses and measuring instruments are important to the improvement of the accuracy of geomaterial tests. It was also revealed that the maximum and minimum weights measured by a balance scale affect test accuracy.

本文言語English
ページ(範囲)84-89
ページ数6
ジャーナルZairyo/Journal of the Society of Materials Science, Japan
65
1
DOI
出版ステータスPublished - 2016 1
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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