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BS EN ISO 17892-4:2016

BS EN ISO 17892-4:2016

$167.15

Geotechnical investigation and testing. Laboratory testing of soil – Determination of particle size distribution

Published By Publication Date Number of Pages
BSI 2016 42
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This part of ISO 17892 specifies a method of determining the particle size distribution of soils.

This part of ISO 17892 is applicable to the laboratory determination of the particle size distribution of a soil test specimen by sieving, or sedimentation, or a combination of both within the scope of geotechnical investigations.

The particle size distribution is one of the most important physical characteristics of soil. Classification of soils is mainly based on the particle size distribution. Many geotechnical and geohydrological properties of soil are related to the particle size distribution.

The particle size distribution provides a description of soil based on a subdivision in discrete classes of particle sizes. The size of each class can be determined by sieving and/or sedimentation. Coarse soils are usually tested by sieving, but fine and mixed soils are usually tested by a combination of sieving and sedimentation, depending on the composition of the soil.

The sieving method described is applicable to all non-cemented soils with particle sizes less than 125 mm. Two sedimentation methods are described: the hydrometer method and the pipette method.

NOTE

This part of ISO 17892 fulfils the requirements of the particle size distribution testing in accordance with EN 1997‑2 .

PDF Catalog

PDF Pages PDF Title
4 European foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Apparatus
4.1 General
11 4.2 Sieving method
12 4.3 Hydrometer method
4.4 Pipette method
14 4.5 Reagents
5 Test procedure
5.1 Selection of test method
15 5.2 Sieving method
5.2.1 General
17 5.2.2 Specimen preparation
18 5.2.3 Test execution
20 5.3 Hydrometer method
5.3.1 General
22 5.3.2 Specimen preparation
23 5.3.3 Test execution
5.4 Pipette method
5.4.1 General
24 5.4.2 Specimen preparation
5.4.3 Test execution
5.5 Combined tests
26 6 Test results
6.1 Sieving
6.1.1 Fraction passing each sieve
6.2 Hydrometer
6.2.1 Total dry mass
27 6.2.2 Fraction passing each sieve
6.2.3 True hydrometer reading
6.2.4 Effective depth
6.2.5 Equivalent particle diameter
28 6.2.6 Modified hydrometer reading
6.2.7 Fraction smaller than equivalent particle diameter
29 6.2.8 Correction for material larger than 2 mm
6.3 Pipette
6.3.1 Total dry mass
6.3.2 Fraction passing each sieve
6.3.3 Equivalent particle diameter
30 6.3.4 Fraction smaller than equivalent particle diameter
6.3.5 Correction for material larger than 2 mm
7 Test report
32 Annex A (normative) Calibration, maintenance and checks
38 Annex B (informative) Pre-treatment of samples
39 Bibliography

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BS EN ISO 17892-4:2016
$167.15