1、July 2015 Translation by DIN-Sprachendienst.English price group 11No 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 9
2、1.100.15!%D9English version EN 933-8:2012+A1:2015,English translation of DIN EN 933-8:2015-07Prfverfahren fr geometrische Eigenschaften von Gesteinskrnungen Teil 8: Beurteilung von Feinanteilen Sandquivalent-Verfahren;Englische Fassung EN 933-8:2012+A1:2015,Englische bersetzung von DIN EN 933-8:2015
3、-07Essais pour dterminer les caractristiques gomtriques des granulats Partie 8: Evaluation des fines Equivalent de sable;Version anglaise EN 933-8:2012+A1:2015,Traduction anglaise de DIN EN 933-8:2015-07SupersedesDIN EN 933-8:2012-04www.beuth.deIn case of doubt, the German-language original shall be
4、 considered authoritative.Document comprises 21 pages 06.15 DIN EN 933-8:2015-07 2 A comma is used as the decimal marker. National foreword This document (EN 933-8:2012+A1:2015) has been prepared by Technical Committee CEN/TC 154 “Aggregates” (Secretariat: BSI, United Kingdom). The responsible Germa
5、n body involved in its preparation was the DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-03-13 AA Gemeinschaftsarbeits-ausschuss NA 062/FGSV: Gesteinskrnungen; Prfverfahren, Petrographie, Probenahme und Przision. Amendments This standard dif
6、fers from DIN EN 933-8:2012-04 as follows: a) Amendment A1:2015 has been incorporated and the moisture content has been reduced from 8 % to 2 %. Previous editions DIN EN 933-8: 1999-05, 2012-04 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 933-8:2012+A1 May 2015 ICS 91.100.15 Supersedes EN 93
7、3-8:2012English Version Tests for geometrical properties of aggregates - Part 8: Assessment of fines - Sand equivalent test Essais pour dterminer les caractristiques gomtriques des granulats - Partie 8 : valuation des fines - quivalent de sable Prfverfahren fr geometrische Eigenschaften von Gesteins
8、krnungen - Teil 8: Beurteilung von Feinanteilen - Sandquivalent-Verfahren This European Standard was approved by CEN on 6 November 2011 and includes Amendment 1 approved by CEN on 20 April 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions
9、for giving this European 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 th
10、ree official versions (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 b
11、odies of Austria, Belgium, 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,
12、 Spain, Sweden, Switzerland, 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 2015 CEN All rights of exploitation in any form and by any means reserved worl
13、dwide for CEN national Members. Ref. No. EN 933-8:2012+A1:2015 EEN 933-8:2012+A1:2015 (E) 2 Contents Page Foreword . 3 1 Scope 5 2 Normative references . 5 3 Terms and definitions . 5 4 Principle . 6 5 Reagents 6 6 Apparatus 6 7 Preparation of test specimens . 12 7.1 General . 12 7.2 First subsample
14、 . 12 7.3 Second subsample . 12 8 Procedure 13 8.1 General . 13 8.2 Filling of the graduated cylinders . 13 8.3 Shaking the graduated cylinders 14 8.4 Washing . 14 8.5 Measurements . 15 9 Calculation and expression of results 16 10 Test report . 17 10.1 Required data 17 10.2 Optional data . 17 Annex
15、 A (normative) Procedure for the determination of the sand equivalent value of the 0/4 mm fraction 18 Annex B (informative) Example of a test data sheet . 19 DIN EN 933-8:2015-07 EN 933-8:2012+A1:2015 (E) 3 Foreword This document (EN 933-8:2012+A1:2015) has been prepared by Technical Committee CEN/T
16、C 154 “Aggregates”, 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 November 2015, and conflicting national standards shall be withdrawn at the latest by N
17、ovember 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 !EN 933-8:2012“. This document includes Amendme
18、nt 1 approved by CEN on 2015-04-19. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. This revised standard differs from EN 933-8:1999 for 0/2 mm size aggregates where the fines content was not limited to 10 %. This European Standard is one of a ser
19、ies of standards for tests for geometrical properties of aggregates. Test methods for other properties of aggregates are covered by the following European Standards: EN 932, Tests for general properties of aggregates; EN 1097, Tests for mechanical and physical properties of aggregates; EN 1367, Test
20、s for thermal and weathering properties of aggregates; EN 1744, Tests for chemical properties of aggregates; EN 13179, Tests for filler aggregate used in bituminous mixtures. The other parts of EN 933, Tests for geometrical properties of aggregates, will be: Part 1: Determination of particle size di
21、stribution Sieving method; Part 2: Determination of particle size distribution Test sieves, nominal size of apertures; Part 3: Determination of particle shape Flakiness index; Part 4: Determination of particle shape Shape index; Part 5: Determination of percentage of crushed and broken surfaces in c
22、oarse aggregate particles; Part 6: Assessment of surface characteristics Flow coefficient of aggregates; Part 7: Determination of shell content Percentage of shells in coarse aggregates; Part 9: Assessment of fines Methylene blue test; Part 10: Assessment of fines Grading of filler aggregates (air j
23、et sieving); DIN EN 933-8:2015-07 EN 933-8:2012+A1:2015 (E) 4 Part 11: Classification test for the constituents of coarse recycled aggregate. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standa
24、rd: Austria, Belgium, 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, Spai
25、n, Sweden, Switzerland, Turkey and the United Kingdom. DINEN 933-8:2015-07EN 933-8:2012+A1:2015 (E) 5 1 Scope This European Standard describes the reference method used for type testing and in case of dispute for the determination of the sand equivalent value of 0/2 mm fraction (for 0/4 mm, see Anne
26、x A) in fine aggregates or all-in aggregates. For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the reference method has been established. 2 Normative references The following referenced documents are indisp
27、ensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 932-2, Tests for general properties of aggregates Part 2: Methods for reducing laboratory s
28、amples EN 932-5, Tests for general properties of aggregates Part 5: Common equipment and calibration EN 933-1, Tests for geometrical properties of aggregates Part 1: Determination of particle size distribution Sieving method EN 933-2, Tests for geometrical properties of aggregates Part 2: Determinat
29、ion of particle size distribution Test sieves, nominal size of apertures EN 1097-5, Tests for mechanical and physical properties of aggregates Part 5: Determination of the water content by drying in a ventilated oven 3 Terms and definitions For the purposes of this document, the following terms and
30、definitions apply. 3.1 fines particle size fraction of an aggregate which passes the 0,063 mm sieve 3.2 laboratory sample sample intended for laboratory testing 3.3 particle size fraction (di/Di) fraction of an aggregate passing the larger (Di) of two sieves and retained on the smaller (di) NOTE The
31、 lower limit dimay be zero. 3.4 subsample sample obtained by means of a sample reduction procedure 3.5 test portion sample used as a whole in a single test DIN EN 933-8:2015-07 EN 933-8:2012+A1:2015 (E) 6 3.6 test specimen sample used in a single determination when a test method requires more than o
32、ne determination of a property 4 Principle A 0/2 mm test specimen of aggregate with a maximum fines content of 10 % (either natural or obtained after grading curve adjustment) and a small quantity of washing and flocculating solution are poured into a graduated cylinder and are agitated to loosen th
33、e clay coatings from the coarser particles in the test portion. The aggregate is then irrigated using additional washing and flocculating solution forcing the fine particles into suspension. After a fixed time, the sand equivalent value (SE(10) is calculated as the height of sediment expressed as a
34、percentage of the total height of sediment and suspension in the cylinder. 5 Reagents 5.1 Concentrated solution, made up of: a) crystalline calcium chloride, CaCl2.6H2O or anhydrous calcium chloride, CaCl2; b) glycerine, 99 % glycerol, laboratory reagent quality; c) formaldehyde solution, 40 % by vo
35、lume, laboratory reagent quality; d) distilled or demineralised water. Dissolve (219 2) g of crystalline calcium chloride in (350 50) ml of distilled or demineralised water, cool to room temperature and if necessary filter through a medium or coarse grade filter paper. Add (480 5) g of glycerine and
36、 (12,5 0,5) g of formaldehyde solution and dilute to 1 l of solution with distilled or demineralised water and mix thoroughly. NOTE 1 219 g CaCl2.6H20 6H2O is equivalent to 111 g anhydrous calcium chloride CaCl2. NOTE 2 It is recommended that the concentrated solution is stored protected from light
37、in glass or plastics flasks containing (125 1) ml. NOTE 3 Sodium hypochlorite (bleach) with 2,6 % active chloride can be used instead of formaldehyde. In case of dispute, use formaldehyde. 5.2 Washing and flocculating solution, prepared by diluting (125 1) ml concentrated solution (5.1) to (5,00 0,0
38、1) l using distilled or demineralised water. NOTE In preparing the washing solution, the concentrated solution should first be vigorously shaken and subsequently its container should be rinsed several times using distilled or demineralised water, pouring the rinsing water into the 5 l flask before d
39、iluting to 5 l. Washing solution shall not be used more than 28 days after preparation or if it is cloudy or contains any precipitate or mould. 6 Apparatus 6.1 All apparatus, unless otherwise stated, shall conform to the general requirements of EN 932-5. DIN EN 933-8:2015-07 EN 933-8:2012+A1:2015 (E
40、) 7 6.2 Two graduated cylinders, of glass or clear plastic (see Figure 1) complete with rubber bungs and with the following dimensions: a) wall thickness, about 3 mm; b) inside diameter (32,0 0,5) mm; c) height (430,00 0,25) mm. Each cylinder shall be clearly marked in two positions: d) at (100,00 0
41、,25) mm from the base; and e) at (380,00 0,25) mm from the base. DIN EN 933-8:2015-07 EN 933-8:2012+A1:2015 (E) 8 Dimensions in millimetres 1 Circle mark Figure 1 Graduated cylinder 6.3 Test plunger assembly (see Figure 2) comprising: a) a rod (440,00 0,25) mm long; DINEN 933-8:2015-07EN 933-8:2012+
42、A1:2015 (E) 9 b) an end piece (25,0 0,1) mm diameter, its lower surface being flat, smooth and perpendicular to the rod axis and which includes three guides at the side for centring the plunger in the cylinder, leaving a small clearance; c) a collar, (10,0 0,1) mm thick, suitable for use with the gr
43、aduated cylinder, acting as a guide for the rod and, at the same time, used to indicate the distance the test plunger is inserted inside the cylinder; the collar shall include a screw which enables it to be locked onto the rod of the test plunger and the collar shall also have a slot for a rule; d)
44、a plunger head, fixed to the upper end of the rod, to give the test plunger assembly, excluding the collar, a total mass of (1,00 0,01) kg. The immersed parts of the plunger assembly shall be made from non-corrodible metal. NOTE Before first use of a test plunger or a graduated cylinder, the plunger
45、 assembly should be placed in the empty cylinder. With the collar resting on the rim of the cylinder, the distance between the upper face of the collar and the lower face of the plunger head should not exceed 0,5 mm. If this clearance exceeds 0,5 mm or if the end piece does not reach the bottom of t
46、he cylinder, this combination of test plunger and graduated cylinder should not be used. 6.4 Stop clock(s), readable to 1 s. 6.5 500 mm rule, graduated in millimetres. 6.6 Test sieves, 0,063 and 2 mm conforming to EN 933-2 with, if necessary, a guard sieve. 6.7 Sieve brush. 6.8 Spatula. 6.9 Washing
47、tube (see Figure 3), comprising a rigid tube of non-corrodible metal with the following dimensions: a) outside diameter (6,0 0,5) mm; b) inside diameter (4,0 0,2) mm; c) length about 500 mm. The washing tube shall be fitted with a tap at the top. The bottom end of the tube (see Figure 4) shall be co
48、nical or wedge-shaped, made from non-corrodible metal and have a threaded (screw) connection. A hole (1 0,1) mm diameter shall be made diametrically in each angled face. NOTE The tolerances on the washing tube are for manufacturing purposes. 6.10 Flask of glass or clear plastic of 5 l capacity fitted with a siphon system, its base being positioned about 1 m above the work bench. 6.11 Rubber or plastic tube, of length approximately 1,50
