EN 933-11-2009 en Tests for geometrical properties of aggregates - Part 11 Classification test for the constituents of coarse recycled aggregate (Incorporating corrigendum November.pdf

1、BS EN933-11:2009ICS 91.100.15NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDTests for geometricalproperties ofaggregatesPart 11: Classification test for theconstituents of coarse recycledaggregateIncorporating November 2009corrigendum National forewordThis Brit

2、ish Standard is the UK implementation of EN 933-11:2009, incorporating corrigendum November 2009. The UK participation in its preparation was entrusted to Technical Committee B/502/6, Test methods.A list of organizations represented on this committee can be obtained on request to its secretary.This

3、publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN 933-11:2009This British Standard was published under the authority of the Stand

4、ards Policy and Strategy Committee on 31 July 2009 BSI 2010 Amendments/corrigenda issued since publicationDate Comments 28 February 2010 Implementation of CEN corrigendum November 2009, equations in Annex A amendedISBN 978 0 580 68324 4EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 933-11April 20

5、09ICS 91.100.15English VersionTests for geometrical properties of aggregates - Part 11:Classification test for the constituents of coarse recycledaggregateEssais pour dterminer les caractristiques gomtriquesdes granulats - Partie 11: Essai de classification desconstituants de gravillons recyclsPrfve

6、rfahren fr geometrische Eigenschaften vonGesteinskrnungen - Teil 11: Einteilung der Bestandteile ingrober recyclierter GesteinskrnungThis European Standard was approved by CEN on 1 March 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for

7、 giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official v

8、ersions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium

9、, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STAND

10、ARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 933-11:2009: EBS EN 933-11:2009Incorporating corrigendum

11、November 2009EN 933-11:2009 (E) 2 Contents Page Foreword . 3 1 Scope 4 2 Normative references . 4 3 Terms and Definitions 4 4 Principle . 5 5 Apparatus 5 6 Preparation of test portion . 6 7 Procedure 6 8 Calculation and expression of results 10 9 Test report . 10 9.1 Required data 10 9.2 Optional da

12、ta . 10 Annex A (informative) Additive to the test procedure for low proportions of floating particles . 12 Annex B (informative) Example of a test data sheet . 13 BS EN 933-11:2009EN 933-11:2009 (E) 3 Foreword This document (EN 933-11:2009) has been prepared by Technical Committee CEN/TC 154 “Aggre

13、gates”, 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 October 2009, and conflicting national standards shall be withdrawn at the latest by October 2009.

14、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 European Standard is one of a series of standards for tests for geometrical prope

15、rties of aggregates. Test methods for other properties of aggregates are covered by parts of the following European Standards: EN 932 Tests for general properties of aggregates EN 1097 Tests for mechanical and physical properties of aggregates EN 1367 Tests for thermal and weathering properties of a

16、ggregates EN 1744 Tests for chemical properties of aggregates EN 13179 Tests for filler aggregate used in bituminous mixtures The other parts of EN 933 are: Part 1: Determination of particle size distribution - Sieving method Part 2: Determination of particle size distribution - Test sieves, nominal

17、 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 coarse aggregate particles Part 6: Assessment of surface characteristics - Flow coefficient of aggr

18、egates Part 7: Determination of shell content - Percentage of shells in coarse aggregates Part 8: Assessment of fines - Sand equivalent test Part 9: Assessment of fines - Methylene blue test Part 10: Assessment of fines - Grading of fillers (air jet sieving) According to the CEN/CENELEC Internal Reg

19、ulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Net

20、herlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 933-11:2009EN 933-11:2009 (E) 4 1 Scope This European Standard describes a simple method for the examination of coarse recycled aggregates for the purpose of identifying and esti

21、mating the relative proportions of constituent materials. This reference test method should be used for type testing and in case of dispute. For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the reference me

22、thod has been established. NOTE 1 This method is not appropriate for lightweight aggregates covered by EN 13055 series. NOTE 2 If dangerous substances are found in while carrying out this method, they should be dealt with in accordance with regulations in the place of use. 2 Normative references The

23、 following referenced documents are indispensable 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 932-1, Tests for general properties of aggregates

24、 Part 1 Methods for sampling EN 932-2, Tests for general properties of aggregates Part 2 Methods for reducing laboratory samples EN 932-5, Tests for general properties of aggregates Part 5 Common equipment and calibration EN 933-2, Tests for geometrical properties of aggregates Part 2: Determination

25、 of particle size distribution Test sieves, nominal size of apertures 3 Terms and Definitions For the purpose of this standard, the following terms and definitions apply: 3.1 aggregate size designation of aggregate in terms of lower (d) and upper (D) sieve sizes expressed as d/D NOTE This designatio

26、n accepts the presence of some particles which will be retained on the upper sieve (oversize) and some which will pass the lower sieve (undersize). 3.2 particle size fraction di/Difraction of an aggregate passing the larger (Di) of two sieves and retained on the smaller (di) 3.3 constant mass succes

27、sive weighings after drying at least 1 h apart not differing by more than 0,1 % NOTE In many cases constant mass can be achieved after a test portion has been dried for a pre-determined period in a specified oven at (110 5) C. Test laboratories can determine the time required to achieve constant mas

28、s for specific types and sizes of sample dependent upon the drying capacity of the oven used. BS EN 933-11:2009EN 933-11:2009 (E) 5 3.4 floating particles particles that float in water 3.5 test portion sample used as a whole in a single test 4 Principle The test consists of hand sorting particles fr

29、om a test portion of coarse recycled aggregate into a list of constituents. The proportion of each constituent in the test portion is then determined and expressed as a percentage by mass, except for the proportion of floating particles which is expressed as a volume by mass. 5 Apparatus Unless othe

30、rwise stated, all apparatus shall conform to the general requirements of EN 932-5. 5.1 Test sieves, 63 mm and 4 mm conforming to EN 933-2. 5.2 Tightly fitting pan and lid, for the sieves. 5.3 Ventilated oven, thermostatically controlled to maintain a temperature of (40 5) C or (110 5) C. 5.4 Balance

31、 or scale, of suitable capacity and readable to 0,1g. 5.5 Trays 5.6 Brushes 5.7 Sieving machine, optional. 5.8 Watertight tank, of suitable capacity. 5.9 Stirrer 5.10 Dry soft absorbent rag 5.11 Graduated measuring cylinder, of suitable capacity, graduated to 1 or 5 cm3(depending on the required pre

32、cision for volume measurement). 5.12 Plunger, for the graduated cylinder. BS EN 933-11:2009EN 933-11:2009 (E) 6 6 Preparation of test portion The sample shall be taken in accordance with EN 932-1 and reduced in accordance with EN 932-2 to produce a test portion of minimum mass given in Table 1. Dry

33、the sample at (40 5) C to constant mass. Weigh and record the dry mass of the sample as M0. NOTE In the absence of temperature sensitive constituents such as bituminous mixtures, the sample may be dried at (110 5) C. Record the drying temperature as T. Sieve the sample on the test sieves, agitating

34、with sufficient vigour to ensure complete separation of particles greater than 4 mm. Weigh and record the mass of particles retained on the 63 mm sieve as M63, and then discard them. Weigh and record the mass of particles passing the 4 mm sieve as M4, and then discard them. Record the mass of the ob

35、tained test portion as M1. Table 1 Guidance on mass of test portion Upper Aggregate size D Test portion mass (minimum) mm Kg 63 50 32 and below 20 Note Higher test portion masses may be necessary to ensure sufficient precision in the determination of low proportions of restricted constituents, (see

36、Annex A). 7 Procedure Separate and retain clay and soil from the test portion and put it in a tray. Immerse the rest of the test portion into the filled watertight tank and stir in order to wash the particles and release the floating ones. Collect these floating particles and determine their volume

37、VFLin cm3. For this purpose, gently surface dry them using the dry absorbent rag, then introduce them into the graduated cylinder filled with a known volume of water, sufficient to allow their total immersion. Use the plunger to achieve total immersion of the floating particles alone (see Figure 1),

38、 viz. do not immerse the plunger itself or entrap air, and use the cylinder gradation to assess the resulting volume increase. Collect the non-floating particles and dry them apart at same temperature as before to constant mass. Spread these particles on a flat surface and separate by hand those bel

39、onging to constituent X as defined in Table 2. Put them in the tray together with the soil and the clay. Weigh and record the combined mass of particles as MX. BS EN 933-11:2009EN 933-11:2009 (E) 7 12Key 1 Plunger 2 Water level Figure 1 Example of determination of the volume of floating particles Ta

40、ble 2 Non-floating constituents of coarse recycled aggregates Constituent DescriptionRc Concrete, concrete products, mortar Concrete masonry units Ru Unbound aggregate, natural stone Hydraulically bound aggregate Rb Clay masonry units (i.e. bricks and tiles) Calcium silicate masonry units Aerated no

41、n-floating concrete Ra Bituminous materials Rg Glass X Other: Cohesive (i.e. clay and soil) Miscellaneous: metals (ferrous and non- ferrous), non-floating wood, plastic and rubber Gypsum plaster Weigh and record the mass of remaining non-floating particles as M2. To facilitate the sorting, the numbe

42、r of these particles can be further reduced to at least 1000 particles according to EN 932-2. BS EN 933-11:2009EN 933-11:2009 (E) 8 Table 3 gives guidance on the minimum mass required for this purpose. Table 3 Guidance on the mass of at least 1000 particles Upper aggregate size D mm Minimum mass kg

43、63 50 32 10 20 4 16 2 14 1 8 0,5 NOTE Table 3 provides guidance on the mass required to provide 1000 particles. The actual mass depends upon the particle size distribution and particle density of the aggregate. Experience will allow test laboratories to estimate the mass required for materials that

44、are tested routinely. Weigh and record the mass of the non-floating particles that remain to be sorted as M3. Separate them further into the constituents described in Table 2. Weigh and record the masses of each constituent as MRc, MRu, MRb, MRa, and MRg. Figure 2 summarizes the various steps of the

45、 test procedure. BS EN 933-11:2009EN 933-11:2009 (E) 9 Figure 2 Flow chart describing the test procedure BS EN 933-11:2009EN 933-11:2009 (E) 10 8 Calculation and expression of results Record the various volume and masses on a test data sheet, an example of which is given in Annex B. Calculate the pr

46、oportion of each constituent as follows: FL (cm3/kg) =1000 VFL / M1 X (%) = 100 MX / M1Rc (%) = 100 (M2/ M1) (MRc / M3) Ru (%) = 100 (M2/ M1) (MRu/ M3) Rb (%) = 100 (M2/ M1) (MRb/ M3) Ra(%) = 100 (M2/ M1) (MRa/M3) Rg (%) = 100 (M2/ M1) (MRg/ M3) Round these proportions to one decimal place, except f

47、or percentages above or equal 10 % (no decimal). 9 Test report 9.1 Required data The test report shall include the following information: a) reference to this European Standard; b) identification of the sample; c) identification of the laboratory; d) sample reception date; e) proportion of each cons

48、tituent; f) drying temperature; g) date of test. 9.2 Optional data The test report may include the following information: a) name and location of the sample source; b) description of the sample; c) description of the sample reduction procedure; BS EN 933-11:2009EN 933-11:2009 (E) 11 d) sampling cert

49、ificate, if available; e) mass of sample, M0; f) mass of sample retained on the 63 mm sieve, M63; g) mass of sample passing the 4 mm sieve, M4; h) mass of test portion, M1; i) mass M3. BS EN 933-11:2009EN 933-11:2009 (E) 12 Annex A (informative) Additive to the test procedure for low proportions of floating particles Depending on their end use, the maximum proportion of restricted constituents allowed in coarse recycled aggregate may be low. In this case, larger samples need to be tested, in o