1、March 2015 Translation by DIN-Sprachendienst.English price group 10No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、13.080.20; 13.080.40; 93.020!%A-%“2301002www.din.deDDIN EN ISO 17892-1Geotechnical investigation and testing Laboratory testing of soil Part 1: Determination of water content (ISO 17892-1:2014);English version EN ISO 17892-1:2014,English translation of DIN EN ISO 17892-1:2015-03Geotechnische Erkundu
3、ng und Untersuchung Laborversuche an Bodenproben Teil 1: Bestimmung des Wassergehalts (ISO 17892-1:2014);Englische Fassung EN ISO 17892-1:2014,Englische bersetzung von DIN EN ISO 17892-1:2015-03Reconnaissance et essais gotechniques Essais de laboratoire sur les sols Partie 1: Dtermination de la tene
4、ur en eau (ISO 17892-1:2014);Version anglaise EN ISO 17892-1:2014,Traduction anglaise de DIN EN ISO 17892-1:2015-03SupersedesDIN 18121-1:1998-04 andDIN ISO/TS 17892-1:2005-01www.beuth.deDocument comprises 15 pagesIn case of doubt, the German-language original shall be considered authoritative.02.15
5、DIN EN ISO 17892-1:2015-03 2 A comma is used as the decimal marker. National foreword This document (EN ISO 17892-1:2014) has been prepared by Technical Committee CEN/TC 341 “Geotechnical investigation and testing” (Secretariat: BSI, United Kingdom) in collaboration with Technical Committee ISO/TC 1
6、82 “Geotechnics”. The responsible German body involved in its preparation was the DIN-Normenausschuss Bauwesen (DIN Standards Committee Building and Civil Engineering), Working Committee NA 005-05-03 AA Baugrund, Laborversuche (SpA zu CEN/TC 341/WG 6). The DIN Standard corresponding to the Internati
7、onal Standard referred to in this document is as follows: ISO 14688-1 DIN EN ISO 14688-1 Amendments This standard differs from DIN ISO/TS 17892-1:2005-01 and DIN 18121-1:1998-04 as follows: a) the standard has been revised in form and substance; b) the method of determining the water content has bee
8、n rendered more precise; c) Annex A (normative) “Calibration, maintenance and checks” has been added; d) Annex B “Explanations” and Annex C “Fluid content” (both informative) have been added. Previous editions DIN 18121-1: 1969-02, 1976-04, 1998-04 DIN ISO/TS 17892-1: 2005-01 National Annex NA (info
9、rmative) Bibliography DIN EN ISO 14688-1, Geotechnical investigation and testing Identification and classification of soil Part 1: Identification and description EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 17892-1 December 2014 ICS 13.080.20; 93.020 Supersedes CEN ISO/TS 17892-1:2004Eng
10、lish Version Geotechnical investigation and testing - Laboratory testing of soil - Part 1: Determination of water content (ISO 17892-1:2014) Reconnaissance et essais gotechniques - Essais de laboratoire sur les sols - Partie 1: Dtermination de la teneur en eau (ISO 17892-1:2014) Geotechnische Erkund
11、ung und Untersuchung - Laborversuche an Bodenproben - Teil 1: Bestimmung des Wassergehalts (ISO 17892-1:2014) This European Standard was approved by CEN on 18 October 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this Europe
12、an Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions
13、(English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belg
14、ium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switze
15、rland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national
16、 Members. Ref. No. EN ISO 17892-1:2014 EContents PageForeword .3Introduction 41 Scope . 52 Normative references 53 Terms and definitions . 54 Equipment . 55 Test procedure 65.1 Test specimen preparation . 65.2 Test execution 76 Test results 87 Test report . 8Annex A (normative) Calibration, maintena
17、nce and checks . 9Annex B (informative) Explanations . 11Annex C (informative) Fluid content . 12Bibliography .13DIN EN ISO 17892-1:2015-03 EN ISO 17892-1:2014 (E) 2 Foreword This document (EN ISO 17892-1:2014) has been prepared by Technical Committee ISO/TC 182 “Geotechnics“ in collaboration Techni
18、cal Committee CEN/TC 341 “Geotechnical Investigation and Testing” the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2015, and conflicting national stand
19、ards shall be withdrawn at the latest by June 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes CEN ISO/T
20、S 17892-1:2004. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedo
21、nia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 17892-1:2014 has been approved by CE
22、N as EN ISO 17892-1:2014 without any modification. EN ISO 17892 consists of the following parts, under the general title “Geotechnical investigation and testing Laboratory testing of soil”: Part 1: Determination of water content Part 2: Determination of bulk density Part 3: Determination of particle
23、 density Part 4: Determination of particle size distribution Part 5: Incremental loading oedometer test Part 6: Fall cone test Part 7: Unconfined compression test on fine-grained soils Part 8: Unconsolidated undrained triaxial test Part 9: Consolidated triaxial compression tests on water-saturated s
24、oils Part 10: Direct shear tests Part 11: Determination of permeability by constant and falling head Part 12: Determination of Atterberg limitsDIN EN ISO 17892-1:2015-03 EN ISO 17892-1:2014 (E) 3 IntroductionThis document covers areas in the international field of geotechnical engineering never prev
25、iously standardised internationally. It is intended that this document presents broad good practice throughout the world and significant differences with national documents is not anticipated. It is based on international practice (see Reference 1).DIN EN ISO 17892-1:2015-03 EN ISO 17892-1:2014 (E)
26、4 1 ScopeThis International Standard specifies a method of determining the water content of soils.This International Standard is applicable to the laboratory determination of the water (also known as moisture) content of a soil test specimen by oven-drying within the scope of geotechnical investigat
27、ions. The water content is required as a guide to the classification of natural soils and as a control criterion in re-compacted soils, and is measured on samples used for most field and laboratory tests. The oven-drying method is the definitive procedure used in usual laboratory practice.The practi
28、cal procedure for determining the water content of a soil is to determine the mass loss on drying the test specimen to a constant mass in a drying oven controlled at a given temperature. The mass loss is assumed to be due to free water and is referenced to the remaining dry mass of solid particles.N
29、OTE This document fulfils the requirements of the determination of water content of soils for geotechnical investigation and testing in accordance with EN 19971 and EN 19972.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indisp
30、ensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 386, Liquid-in-glass laboratory thermometers Principles of design, construction and useISO 14688-1, Geotechn
31、ical investigation and testing Identification and classification of soil Part 1: Identification and description3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1water contentwratio of the mass of free water to the mass of dry soil3.2fluid contentw
32、flratio of the mass of free water including dissolved solids to the mass of dry soil4 EquipmentSee Annex A for calibration requirements of the following equipment.DIN EN ISO 17892-1:2015-03 EN ISO 17892-1:2014 (E) 5 4.1 Drying oven, of the forced-draft type and capable of maintaining a uniform tempe
33、rature throughout the drying chamber.Any air circulation shall not be so strong that any transport of particles can take place.4.2 Thermometer or thermocouple device, accurate to 1C, to check the temperature within the oven.4.3 Balance, accurate to 0,01 g or 0,1 % of the weighed mass whichever value
34、 is the greater.4.4 Test specimen containers.4.4.1 Test specimen containers shall be constructed of a material that does not change mass as a result of repeated drying cycles. Glass, porcelain and corrosion-resistant metals have been found to be suitable. One container is needed for each water conte
35、nt determination.4.4.2 Containers shall have a capacity large enough to hold the mass of sample to be dried without spillage, but should not be so large that the mass of the empty container is significantly in excess of that of the specimen. For larger specimens the container shall also allow the la
36、rge surface area required of 5.2.1 to be met.For soils with a tendency to absorb significant amounts of water vapour from air, or if the air humidity is more than about 60 %, containers with close-fitting lids should be used for testing test specimens having a mass of less than about 200 g.NOTE The
37、purpose of close-fitting lids is to prevent loss of moisture from test specimens before initial weighing and to prevent absorption of moisture from the atmosphere before final weighing.4.5 Desiccator, if used, shall be of suitable size and contain dry, self indicating desiccant such as silica gel.It
38、 is not required if test specimen containers with close-fitting lids are used.NOTE The purpose of the desiccator is to prevent absorption of moisture from air.5 Test procedure5.1 Test specimen preparation5.1.1 If samples are stored prior to testing, they shall be kept in non-corrodible airtight cont
39、ainers at a temperature between approximately 3C and 30C, in an area protected against direct sunlight, local sources of heat and drafts.5.1.2 The water content determination should be performed as soon as practicable.5.1.3 The manner in which the test specimen is selected and its required mass is d
40、ependent on the purpose (application) of the test, the type of soil being tested and the type of sample (e.g. test specimen from another test, bag, tube, split barrel etc). Either a representative sample of the soil as a whole, after thorough mixing, shall be taken or separate portions from each typ
41、e of soil shall be selected. A description of the test specimen shall be recorded. Details of any test specimen selection shall be reported with the test results.5.1.4 For bulk samples, the test specimen shall be selected from the soil after it has been thoroughly mixed. The recommended minimum mass
42、es of moist soil for the determination of water content are listed in Table 1. If samples of lower mass are tested this should be stated in the test report.DIN EN ISO 17892-1:2015-03 EN ISO 17892-1:2014 (E) 6 Table 1 Minimum test specimen massGrain size diameter DmaxammRecommended minimum mass of mo
43、ist test specimenbg0,063 302,0 10010,0 50031,5 3 00063,0 21 000a Maximum diameter of soil particles, excluding any discrete coarser particles present.bUsing a test specimen smaller than the minimum mass indicated requires discretion, though it may be adequate for the purpose of the test. A test spec
44、imen having a mass less than the indicated value shall be noted in the report of the results. In many cases, when working with a small sample containing a relatively large coarse particle, it is appropriate not to include this particle in the test specimen. If this occurs, it should be noted in the
45、report of the results.5.1.5 For small samples, a representative portion shall be selected in accordance with the following procedure:5.1.5.1 For coarse soils, the soil shall be thoroughly mixed and then a test specimen of moist soil having a mass according to Table 1 shall be selected.5.1.5.2 For fi
46、ne soils, a representative sample shall be sliced in half (to check if the soil is layered) prior to selecting the test specimen. If the soil is layered see 5.1.3. The minimum mass of moist soil selected should not be less than 30 g, or should be in accordance with Table 1 if coarse particles are no
47、ted.5.2 Test execution5.2.1 Place the moist test specimen in a clean, dry container of known mass (mc, including the mass of the lid, if one is to be used) and determine its total mass. This value shall be recorded (m1). If containers without lids are used weighing shall be done immediately after placing the test specimen into the container. To assist in the oven-drying of large test specimens, they should be placed in contai
