1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Part 31: Specimen preparation by gyratory compactorThe European Standard EN 12697-31:2007 has the s
2、tatus of a British StandardICS 93.080.20Bituminous mixtures Test methods for hot mix asphalt BRITISH STANDARDBS EN 12697-31:2007BS EN 12697-31:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2007 BSI 2007ISBN 978 0 580 50689 5Amend
3、ments issued since publicationAmd. No. Date CommentsThis 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.National forewordThis Britis
4、h Standard was published by BSI. It is the UK implementation of EN 12697-31:2007. It supersedes BS EN 12697-31:2004 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee B/510, Road materials, to Subcommittee B/510/1, Coated macadam and hot asphalt.A list o
5、f organizations represented on this committee can be obtained on request to its secretary.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 12697-31April 2007ICS 93.080.20 Supersedes EN 12697-31:2004 English VersionBituminous mixtures - Test methods for hot mix asphalt - Part31: Specimen preparation
6、 by gyratory compactorMlanges bitumineux - Mthodes dessai pour mlangehydrocarbon chaud - Partie 31 : Confectiondprouvettes la presse compactage giratoireAsphalt - Prfverfahren fr Heiasphalt - Teil 31:Herstellung von Probekrpern mit dem Gyrator-VerdichterThis European Standard was approved by CEN on
7、4 February 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be
8、 obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (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 Man
9、agement Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norw
10、ay, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and
11、 by any means reservedworldwide for CEN national Members.Ref. No. EN 12697-31:2007: EEN 12697-31:2007 (E) 2 Contents Page Foreword4 1 Scope 7 2 Normative references 7 3 Terms, definitions and symbols.8 3.1 Terms and definitions .8 3.2 Symbols 9 4 Principle10 5 Apparatus .10 5.1 Test device .10 5.2 M
12、etallic moulds11 5.3 Round metallic inserts 11 5.4 Device for measuring the distance between inserts11 5.5 Device for counting the number of rotations to within one revolution11 6 Preparation of specimens.12 6.1 Mass of mixture to be introduced in the mould12 6.2 Preparation of test pieces.12 7 Test
13、 procedure.13 7.1 Preliminary setting.13 7.2 Compaction 13 8 Test report 14 9 Precision.15 Annex A (normative) Procedure for setting the angle and force for types of gyratory compactor using central reference material 16 A.1 Scope 16 A.2 Principle16 A.3 Gyratory-type testing procedure16 A.4 Procedur
14、e to test the conformity of a gyratory compactor to a type.18 A.5 Summary of the gyratory calibration chain 19 Annex B (normative) Procedure to evaluate the gyratory compactor internal angle of gyration using a self-contained measurement unit.20 B.1 Scope 20 B.2 Principle20 B.3 Equipment 20 B.4 Proc
15、edure .21 B.5 Calculation23 B.6 Compliance.24 B.7 Report .25 B.8 Precision data 25 Annex C (normative) Procedure to evaluate the gyratory compactor (GC) internal angle of gyration and related parameters using simulated loading .26 C.1 Scope 26 C.2 Principle26 C.3 Procedure .26 C.4 Calculation of res
16、ults 27 C.5 Compliance.28 EN 12697-31:2007 (E) 3 C.6 Report .28 C.7 Precision and bias.28 Bibliography30 EN 12697-31:2007 (E) 4 Foreword This document (EN 12697-31:2007) has been prepared by Technical Committee CEN/TC 227 “Road materials”, the secretariat of which is held by DIN. This European Stand
17、ard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2007, and conflicting national standards shall be withdrawn at the latest by January 2008. This document supersedes EN 12697-31:2004. This document is one of a
18、 series of standards as listed below: EN 12697-1, Bituminous mixtures Test methods for hot mix asphalt Part 1: Soluble binder content. EN 12697-2, Bituminous mixtures Test methods for hot mix asphalt Part 2: Determination of particle size distribution. EN 12697-3, Bituminous mixtures Test methods fo
19、r hot mix asphalt Part 3: Bitumen recovery: Rotary evaporator. EN 12697-4, Bituminous mixtures Test methods for hot mix asphalt Part 4: Bitumen recovery: Fractionating column. EN 12697-5, Bituminous mixtures Test methods for hot mix asphalt Part 5: Determination of the maximum density. EN 12697-6, B
20、ituminous mixtures Test methods for hot mix asphalt Part 6: Determination of bulk density of bituminous specimens. EN 12697-7, Bituminous mixtures Test methods for hot mix asphalt Part 7: Determination of bulk density of bituminous specimens by gamma rays. EN 12697-8, Bituminous mixtures Test method
21、s for hot mix asphalt Part 8: Determination of void characteristics of bituminous specimens. EN 12697-9, Bituminous mixtures Test methods for hot mix asphalt Part 9: Determination of the reference density. EN 12697-10, Bituminous mixtures Test methods for hot mix asphalt Part 10: Compactibility. EN
22、12697-11, Bituminous mixtures Test methods for hot mix asphalt Part 11: Determination of the affinity between aggregate and bitumen. EN 12697-12, Bituminous mixtures Test methods for hot mix asphalt Part 12: Determination of the water sensitivity of bituminous specimens. EN 12697-13, Bituminous mixt
23、ures Test methods for hot mix asphalt Part 13: Temperature measurement. EN 12697-14, Bituminous mixtures Test methods for hot mix asphalt Part 14: Water content. EN 12697-15, Bituminous mixtures Test methods for hot mix asphalt Part 15: Determination of the segregation sensitivity. EN 12697-16, Bitu
24、minous mixtures Test methods for hot mix asphalt Part 16: Abrasion by studded tyres. EN 12697-31:2007 (E) 5 EN 12697-17, Bituminous mixtures Test methods for hot mix asphalt Part 17: Particle loss of porous asphalt specimen. EN 12697-18, Bituminous mixtures Test methods for hot mix asphalt Part 18:
25、Binder drainage. EN 12697-19, Bituminous mixtures Test methods for hot mix asphalt Part 19: Permeability of specimen. EN 12697-20, Bituminous mixtures Test methods for hot mix asphalt Part 20: Indentation using cube or Marshall specimens. EN 12697-21, Bituminous mixtures Test methods for hot mix asp
26、halt Part 21: Indentation using plate specimens. EN 12697-22, Bituminous mixtures Test methods for hot mix asphalt Part 22: Wheel tracking. EN 12697-23, Bituminous mixtures Test methods for hot mix asphalt Part 23: Determination of the indirect tensile strength of bituminous specimens. EN 12697-24,
27、Bituminous mixtures Test methods for hot mix asphalt Part 24: Resistance to fatigue. EN 12697-25, Bituminous mixtures Test methods for hot mix asphalt Part 25: Cyclic compression test. EN 12697-26, Bituminous mixtures Test methods for hot mix asphalt Part 26: Stiffness. EN 12697-27, Bituminous mixtu
28、res Test methods for hot mix asphalt Part 27: Sampling. EN 12697-28, Bituminous mixtures Test methods for hot mix asphalt Part 28: Preparation of samples for determining binder content, water content and grading. EN 12697-29, Bituminous mixtures Test method for hot mix asphalt Part 29: Determination
29、 of the dimensions of a bituminous specimen. EN 12697-30, Bituminous mixtures Test methods for hot mix asphalt Part 30: Specimen preparation by impact compactor. EN 12697-31, Bituminous mixtures Test methods for hot mix asphalt Part 31: Specimen preparation by gyratory compactor. EN 12697-32, Bitumi
30、nous mixtures Test methods for hot mix asphalt Part 32: Laboratory compaction of bituminous mixtures by vibratory compactor. EN 12697-33, Bituminous mixtures Test methods for hot mix asphalt Part 33: Specimen prepared by roller compactor. EN 12697-34, Bituminous mixtures Test methods for hot mix asp
31、halt Part 34: Marshall test. EN 12697-35, Bituminous mixtures Test methods for hot mix asphalt Part 35: Laboratory mixing. EN 12697-36, Bituminous mixtures Test methods for hot mix asphalt Part 36: Determination of the thickness of a bituminous pavement. EN 12697-37, Bituminous mixtures Test methods
32、 for hot mix asphalt Part 37: Hot sand test for the adhesivity of binder on precoated chippings for HRA. EN 12697-38, Bituminous mixtures Test methods for hot mix asphalt Part 38: Common equipment and calibration. EN 12697-39, Bituminous mixtures Test methods for hot mix asphalt Part 39: Binder cont
33、ent by ignition. EN 12697-31:2007 (E) 6 EN 12697-40, Bituminous mixtures Test methods for hot mix asphalt Part 40: In-situ drainability. EN 12697-41, Bituminous mixtures Test methods for hot mix asphalt Part 41: Resistance to de-icing fluids. EN 12697-42, Bituminous mixtures Test methods for hot mix
34、 asphalt Part 42: Amount of coarse foreign matter in reclaimed asphalt. EN 12697-43, Bituminous mixtures Test methods for hot mix asphalt Part 43: Resistance to fuel. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to imple
35、ment this European Standard: Austria, Belgium, 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
36、and United Kingdom. EN 12697-31:2007 (E) 7 1 Scope This European Standard specifies the method for compaction of cylindrical specimens of bituminous mixtures using a gyratory compactor. Such compaction is achieved by combining a rotary shearing action and a vertical resultant force applied by a mech
37、anical head. The method is used for: a) determination of the air voids content of a mixture for a given number of gyrations or derivation of a curve density (or void content) versus number of gyrations; b) preparation of specimens of given height and/or at a predetermined density, for subsequent tes
38、ting of their mechanical properties. The equipment used for the method needs to comply with Annex A, Annex B or Annex C. NOTE Annex A is especially suitable for void content evaluation and compaction research and Annex B and Annex C for the preparation of specimens for mechanical testing. This Europ
39、ean Standard applies to bituminous mixtures (both those made up in laboratory and those resulting from work site sampling), with an upper aggregate size not larger than 31,5 mm. 2 Normative references The following referenced documents are indispensable for the application of this document. For date
40、d references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12697-5, Bituminous mixtures Tests methods for hot mix asphalt Part 5: Determination of the maximum density EN 12697-6, Bituminous mixtures Test
41、methods for hot mix asphalt Part 6: Determination of bulk density of bituminous specimens EN 12697-8, Bituminous mixtures Test methods for hot mix asphalt Part 8: Determination of void characteristics of bituminous specimens EN 12697-27, Bituminous mixtures Test methods for hot mix asphalt Part 27:
42、Sampling EN 12697-35, Bituminous mixtures Test methods for hot mix asphalt Part 35: Laboratory mixing EN 13108-1; Bituminous mixtures Material specifications Part 1: Asphalt concrete EN ISO 4287, Geometrical product specifications (GPS) Surface texture: Profile method Terms, definitions and surface
43、texture parameters (ISO 4287:1997) EN ISO 6508-1, Metallic materials Rockwell hardness test Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T) (ISO 6508-1:2005) EN 12697-31:2007 (E) 8 3 Terms, definitions and symbols 3.1 Terms and definitions For the purposes of this document, the followin
44、g terms and definitions apply. 3.1.1 gyratory compactor type representative model of a given production compactor 3.1.2 force-angle calibration chain force F and the angle determined for a type of gyratory compactor in order to comply with the central reference material requirements in Table A.1 NOT
45、E Production gyratory compactors of the same type are adjusted using the determined values of F and . The conformity of a production gyratory compactor to a type can be verified by doing a comparative test on a bituminous mixture or by checking the variations of the internal angle as described in A.
46、3.3. 3.1.3 central reference material two bituminous mixtures, produced under defined conditions from constituents stored at a given site, of which the compositions are not specified but the air voids content (the constancy of which is traceable) at fixed numbers of gyrations complies respectively N
47、OTE The characteristics of the central reference material are specified in Table A.1. 3.1.4 internal angle angle between the internal mould cross-sectional plane and the metallic insert as a mould is gyrated in a gyratory compactor 3.1.5 internal top angle angle between the internal mould cross-sect
48、ional plane and the upper metallic insert as a mould is gyrated in a gyratory compactor 3.1.6 internal bottom angle angle between the internal mould cross-sectional plane and the lower metallic insert as a mould is gyrated in a gyratory compactor 3.1.7 internal effective angle average of the interna
49、l top angle and the internal bottom angle 3.1.8 eccentricity distance, e, away from the axis of gyration at which a force, F, is acting at one end of a gyratory compactor mould NOTE The eccentricity is explained in Figure C.1. EN 12697-31:2007 (E) 9 3.1.9 tilting moment product of the eccentricity, e, and the force, F,
