1、BRITISH STANDARD BS EN 933-2:1996 Tests for geometrical properties of aggregates Part 2: Determination of particle size distribution Test sieves, nominal size of apertures The European Standard EN 933-2:1995 has the status of a British Standard ICS 91.100.20BSEN 933-2:1996 This British Standard, hav
2、ing been prepared under the directionof the Sector Board forBuilding and Civil Engineering, was published underthe authority of the Standards Board and comes intoeffect on 15 May 1996 BSI 03-1999 The following BSI references relate to the work on this standard: Committee reference B/502 Draft for co
3、mment 93/104821 DC ISBN 0 580 25770 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee B/502, Aggregates, upon which the following bodies were represented: Aggregate Concrete Block Association Association of Consulting Eng
4、ineers Association of Lightweight Aggregate Manufacturers British Aggregate Construction Materials Industries British Cement Association British Civil Engineering Test Equipment Manufacturers Association British Geological Sciences British Iron and Steel Producers Association British Precast Concret
5、e Federation Ltd. British Ready Mixed Concrete Association Department of the Environment Department of the Environment (Building Research Establishment) Department of Transport Department of Transport (Transport Research Laboratory) Electricity Association Institution of Concrete Technology Institut
6、ion of Civil Engineers Institution of Highways and Transportation Institution of Structural Engineers Local Authority Organizations Sand and Gravel Association Limited Society of Chemical Industry The following bodies were also represented in the drafting of the standard, through subcommittees and p
7、anels: County Surveyors Society Department of Trade and Industry (National Measurement Accreditation Service) Department of Transport (Highways Agency) Amendments issued since publication Amd. No. Date CommentsBSEN 933-2:1996 BSI 03-1999 i Contents Page Committees responsible Inside front cover Nati
8、onal foreword ii Foreword 2 Text of EN 933-2 3BSEN 933-2:1996 ii BSI 03-1999 National foreword This British Standard has been prepared by Technical Committee B/502. It is the English language version of EN 933-2:1995 Tests for geometrical properties of aggregates Part 2: Determination of particle si
9、ze distribution Test sieves, nominal size of apertures, published by the European Committee for Standardization (CEN). It is part of a series of test methods based on the geometrical properties of aggregates. A British Standard does not purport to include all the necessary provisions of a contract.
10、Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi and ii, theEN title page, pages2 and 3 and a b
11、ack cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on theinside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 933-2 November 1995 ICS 91.100.20 Descriptors: Aggregates, tests, geome
12、tric characteristics, grain size, grain size analysis, sieve analysis, sieves, wire cloth, sieve plates, designation, dimensions, openings, ratings English version Tests for geometrical properties of aggregates Part 2: Determination of particle size distribution Test sieves, nominal size of aperture
13、s Essais pour dterminer les caractristiques gomtriques des granulats Partie 2: Dtermination de la granularit Tamis de contrle, dimensions nominales des ouvertures Prfverfahren fr geometrische Eigenschaften von Gesteinskrnungen Teil 2: Bestimmung der Korngrenverteilung Analysensiebe, Nennweite der Si
14、ebffnungen This European Standard was approved by CEN on 1995-11-04. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographic
15、al references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN m
16、ember into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, S
17、weden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1995 All rights of reproduction and communication in any form and by any means reserved in all coun
18、tries to CEN and its members. Ref. No. EN 933-2:1995 EEN933-2:1995 BSI 03-1999 2 Foreword This European Standard has been prepared by the Technical Committee CEN/TC 154, Aggregates, of which the Secretariat is held by BSI. This European Standard shall be given the status of a national standard, eith
19、er by publication of an identical text or by endorsement, at the latest by May 1996, and conflicting national standards shall be withdrawn at the latest by May 1996. This standard forms part of a series of tests for geometrical properties of aggregates. Test methods for other properties of aggregate
20、s are covered by Parts of the following European Standards: prEN 932, Tests for general properties of aggregates. prEN 1097, Tests for mechanical and physical properties of aggregates. prEN 1367, Tests for thermal and weathering properties of aggregates. prEN 1744, Tests for chemical properties of a
21、ggregates. The other Parts of EN 933 will be: Part 1: Determination of particle size distribution Sieving method; Part 3: Determination of particle shape Flakiness index; Part 4: Determination of particle shape of aggregates Shape index; Part 5: Determination of crushed and broken surfaces in coarse
22、 aggregate particles; Part 6: Determination of texture/shape Flow coefficient of coarse aggregates; Part 7: Determination of shell content Percentage of shells for coarse aggregates; Part 8: Assessment of fines Sand equivalent test; Part 9: Assessment of fines Methylene blue test; Part 10: Determina
23、tion of fines Grading of fillers. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,
24、Switzerland and the United Kingdom. Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Definitions 3 4 Designation 3 5 Nominal size of apertures 3 6 Shape of apertures 3EN933-2:1995 BSI 03-1999 3 1 Scope This Part of this European Standard specifies nominal aperture sizes and shape for wo
25、ven wire cloth and perforated plate in test sieves used for test methods for aggregates. It applies to aggregates of natural or artificial origin including lightweight aggregates. 2 Normative references This European Standard incorporates by dated or by undated reference, provisions from other publi
26、cations. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revisio
27、n. For undated references, the latest edition of the publication referred to applies. ISO 3310-1:1990, Test sieves Technical requirements and testing Part 1: Test sieves of metal wire cloth. ISO 3310-2:1990, Test sieves Technical requirements and testing Part 2: Test sieves of perforated metal plate
28、. ISO 565:1990, Test sieves Woven metal wire cloth, perforated plate and electroformed sheet Nominal sizes of openings. 3 Definitions For the purposes of this standard, the following definitions apply: 3.1 woven wire cloth wires which cross each other to form the square apertures 3.2 perforated plat
29、e plate with uniform square holes in symmetrical arrangement 4 Designation Sieves with aperture size of 4mm and above shall be perforated plate square hole test sieves conforming to ISO 3310-2. Below 4mm they shall be woven wire test sieves conforming to ISO 3310-1. NOTEWoven wire sieves of 4mm and
30、above may be used if a correlation can be established with results obtained using perforated plate sieves. In cases of dispute a reference test should be carried out using perforated plate sieves. 5 Nominal size of apertures When a particle size distribution is carried out, sieves from the following
31、 series of aperture sizes between d and D of the designated product size, shall be included, in addition to any other required sieves: 0,063mm, 0,125mm, 0,250mm, 0,500mm, 1mm, 2mm, 4mm, 8mm, 16mm, 31,5mm, 63mm, 125mm For tests where particular sieves are required these shall be selected from the R 2
32、0 series specified in ISO 565. NOTEThe R 20 series from 0,063mm to 125mm increases by step ratio 10 1/20 1,12. 6 Shape of apertures Only sieves with square apertures shall be used.BSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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