1、June 2007DEUTSCHE NORM English price group 12No part of this standard 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 93.080.20!,y4Q“9861746www
2、.din.deDDIN EN 12697-31Bituminous mixtures Test methods for hot mix asphalt Part 31: Specimen preparation by gyratory compactorEnglish version of DIN EN 12697-31:2007-06Asphalt Prfverfahren fr Heiasphalt Teil 31: Herstellung von Probekrpern mit dem Gyrator-VerdichterEnglische Fassung DIN EN 12697-31
3、:2007-06SupersedesDIN EN 12697-31:2004-09www.beuth.deDocument comprises 32 pages09.07DIN EN 12697-31:2007-06 2 National foreword This standard has been prepared by CEN/TC 227 “Road materials”, the Secretariat of which is held by DIN (Germany). The responsible German body involved in its preparation
4、was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Technical Committee NA 005-10-10 AA Asphalt. Amendments This standard differs from DIN EN 12697-31:2004-09 as follows: a) A new Annex B has been included. b) The standard has been revised. Previous editions DIN EN
5、 12697-31: 2004-09 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12697-31 April 2007 ICS 93.080.20 Supersedes EN 12697-31:2004 English Version Bituminous mixtures - Test methods for hot mix asphalt - Part 31: Specimen preparation by gyratory compactor Mlanges bitumineux - Mthodes dessai pour
6、mlange hydrocarbon chaud - Partie 31: Confection dprouvettes la presse compactage giratoire Asphalt - Prfverfahren fr Heiasphalt - Teil 31: Herstellung von Probekrpern mit dem Gyrator-VerdichterThis European Standard was approved by CEN on 4 February 2007. CEN members are bound to comply with the CE
7、N/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 bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or
8、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 member into its own language and notified to the CEN Management Centre has the same status as the official vers
9、ions. 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, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Sp
10、ain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN nationa
11、l 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 Metallic moulds11 5.3 Round metallic inserts 11
12、 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 procedure.13 7.1 Preliminary setting.13 7.2 C
13、ompaction 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 Procedure to test the conformity of a gyratory compact
14、or 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 Procedure .21 B.5 Calculation23 B.6 Compliance.24
15、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 results 27 C.5 Compliance.28 EN 12697-31:2007 (E)
16、 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 Standard shall be given the status of a national st
17、andard, 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 series of standards as listed below: EN 12697
18、-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 for hot mix asphalt Part 3: Bitumen recovery: Ro
19、tary 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, Bituminous mixtures Test methods for hot mix as
20、phalt 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 methods for hot mix asphalt Part 8: Determination of
21、 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 12697-11, Bituminous mixtures Test methods for
22、 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 mixtures Test methods for hot mix asphalt Part 13:
23、 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, Bituminous mixtures Test methods for hot mix aspha
24、lt 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: Binder drainage. EN 12697-19, Bituminous mixtu
25、res 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 asphalt Part 21: Indentation using plate specimen
26、s. 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, Bituminous mixtures Test methods for hot mix a
27、sphalt 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 mixtures Test methods for hot mix asphalt Part 27:
28、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 of the dimensions of a bituminous specimen. E
29、N 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, Bituminous mixtures Test methods for hot mix asphalt
30、 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 asphalt Part 34: Marshall test. EN 12697-35, Bitu
31、minous 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 for hot mix asphalt Part 37: Hot sand test fo
32、r 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 content by ignition. EN 12697-31:2007 (E) 6 EN 126
33、97-40, 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 asphalt Part 42: Amount of coarse foreign mat
34、ter 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 implement this European Standard: Austria, Belgium,
35、 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. EN 12697-31:2007 (E) 7 1 S
36、cope 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 mechanical head. The method is used for: a) determ
37、ination 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 testing of their mechanical properties. The equip
38、ment 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 European Standard applies to bituminous mixtures (b
39、oth 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 dated references, only the edition cited applies.
40、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 methods for hot mix asphalt Part 6: Determinat
41、ion 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: Sampling EN 12697-35, Bituminous mixtures Test
42、 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 texture parameters (ISO 4287:1997) EN ISO 6508
43、-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 following terms and definitions apply. 3.1.1 gyratory
44、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 NOTE Production gyratory compactors of the same t
45、ype 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.3.3. 3.1.3 central reference material two bitu
46、minous 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 NOTE The characteristics of the central referen
47、ce 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-sectional plane and the upper metallic insert as a
48、 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 internal top angle and the internal bottom angle 3.1.
49、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, acting at one end of a gyratory compactor mould in a direction parallel to the ax
