NF EN ISO 17892-12

NF EN ISO 17892-12

July 2018
Standard Current

Geotechnical investigation and testing - Laboratory testing of soil - Part 12 : determination of liquid and plastic limits

This document specifies methods for the determination of the liquid and plastic limits of a soil. These comprise two of the Atterberg limits for soils. The liquid limit is the water content at which a soil changes from the liquid to the plastic state. This document describes the determination of the liquid limit of a specimen of natural soil, or of a specimen of soil from which material larger than about 0,4 mm has been removed. This document describes two methods: the fall cone method and the Casagrande method. NOTE The fall cone method in this document should not be confused with that of ISO 17892‑6. The plastic limit of a soil is the water content at which a soil ceases to be plastic when dried further. The determination of the plastic limit is normally made in conjunction with the determination of the liquid limit. It is recognized that the results of the test are subject to the judgement of the operator, and that some variability in results will occur.

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Main informations

Collections

National standards and national normative documents

Publication date

July 2018

Number of pages

36 p.

Reference

NF EN ISO 17892-12

ICS Codes

13.080.20   Physical properties of soils
93.020   Earthworks. Excavations. Foundation construction. Underground works

Classification index

P94-512-12

Print number

1

International kinship

ISO 17892-12:2018

European kinship

EN ISO 17892-12:2018
Sumary
Geotechnical investigation and testing - Laboratory testing of soil - Part 12 : determination of liquid and plastic limits

This document specifies methods for the determination of the liquid and plastic limits of a soil. These comprise two of the Atterberg limits for soils.

The liquid limit is the water content at which a soil changes from the liquid to the plastic state.

This document describes the determination of the liquid limit of a specimen of natural soil, or of a specimen of soil from which material larger than about 0,4 mm has been removed. This document describes two methods: the fall cone method and the Casagrande method.

NOTE The fall cone method in this document should not be confused with that of ISO 17892‑6.

The plastic limit of a soil is the water content at which a soil ceases to be plastic when dried further.

The determination of the plastic limit is normally made in conjunction with the determination of the liquid limit. It is recognized that the results of the test are subject to the judgement of the operator, and that some variability in results will occur.

Replaced standards (3)
XP CEN ISO/TS 17892-12
August 2005
Standard Cancelled
Geotechnical investigation and testing - Laboratory testing of soil - Part 12 : determination of Atterberg limits

Le présent document fixe la terminologie, décrit l'appareillage et le mode opératoire relatifs à la détermination de deux limites d'Atterberg : limite de liquidité à la coupelle et limite de plasticité au cône. Il fournit la méthode de détermination des différents paramètres et précise les résultats à présenter.

NF P94-051
March 1993
Standard Cancelled
Soil : inverstigation and testing. Determination of Atterberg's limits. Liquid limit test using cassagrande apparatus. Plastic limit test on rolled thread.

Le document fixe la terminologie, décrit l'appareillage et le mode opératoire relatifs à la détermination de deux limites d'Atterberg : limite de liquidité à la coupelle et limite de plasticité au rouleau.

NF P94-052-1
November 1995
Standard Cancelled
Soil : investigation and testing. Atterberg limit determination. Part 1 : liquid limit. Cone penetrometer method.

Le présent document fixe la terminologie, décrit l'appareillage ainsi que le mode opératoire relatif à la détermination de la limite de liquidité au cône de pénétration et indique les résultats à présenter.

Table of contents
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  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Appareillage
  • 5 Procédure d'essai
  • 6 Résultats d'essais
  • 7 Rapport d'essai
  • Annexe A Étalonnage, maintenance et contrôles
  • Annexe B Paramètres supplémentaires
  • Bibliographie
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