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1、BRITISH STANDARD BS EN 12697-31:2007 Bituminous mixtures Test methods for hot mix asphalt Part 31: Specimen preparation by gyratory compactor The European Standard EN 12697-31:2007 has the status of a British Standard ICS 93.080.20 ? Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy, B
2、SI BS EN 12697-31:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2007 BSI 2007 ISBN 978 0 580 50689 5 National foreword This British Standard was published by BSI. It is the UK implementation of EN 12697-31:2007. It supersedes BS
3、 EN 12697-31:2004 which is withdrawn.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 of organizations represented on this committee can be obtained on request to its secretary. This p
4、ublication 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. Amendments issued since publication Amd. No. DateComments Licensed copy:PONTYPRIDD C
5、OLLEGE, 27/01/2008, Uncontrolled Copy, BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12697-31 April 2007 ICS 93.080.20Supersedes EN 12697-31:2004 English Version Bituminous mixtures - Test methods for hot mix asphalt - Part 31: Specimen preparation by gyratory compactor Mlanges bitumineux
6、 - Mthodes dessai pour mlange hydrocarbon chaud - Partie 31 : Confection dprouvettes la presse compactage giratoire Asphalt - Prfverfahren fr Heiasphalt - Teil 31: Herstellung von Probekrpern mit dem Gyrator-Verdichter This European Standard was approved by CEN on 4 February 2007. CEN members are bo
7、und 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 bibliographical references concerning such national standards may be obtained on application to the
8、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 translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same st
9、atus as the official 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, Norway, Poland, Portugal, Roman
10、ia, Slovakia, Slovenia, Spain, 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 CENAll rights of exploitation in any form and by any means reserved
11、worldwide for CEN national Members. Ref. No. EN 12697-31:2007: E Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy, BSI EN 12697-31:2007 (E) 2 Contents Page Foreword4 1Scope 7 2Normative references7 3Terms, definitions and symbols.8 3.1Terms and definitions .8 3.2Symbols9 4Principle10
12、5Apparatus .10 5.1Test device .10 5.2Metallic moulds11 5.3Round metallic inserts 11 5.4Device for measuring the distance between inserts11 5.5Device for counting the number of rotations to within one revolution11 6Preparation of specimens.12 6.1Mass of mixture to be introduced in the mould12 6.2Prep
13、aration of test pieces.12 7Test procedure.13 7.1Preliminary setting.13 7.2Compaction13 8Test report14 9Precision.15 Annex A (normative) Procedure for setting the angle and force for types of gyratory compactor using central reference material 16 A.1Scope 16 A.2Principle16 A.3Gyratory-type testing pr
14、ocedure16 A.4Procedure to test the conformity of a gyratory compactor to a type.18 A.5Summary 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.1Scope 20 B.2Principle20 B.3Equi
15、pment 20 B.4Procedure .21 B.5Calculation23 B.6Compliance.24 B.7Report .25 B.8Precision data 25 Annex C (normative) Procedure to evaluate the gyratory compactor (GC) internal angle of gyration and related parameters using simulated loading .26 C.1Scope 26 C.2Principle26 C.3Procedure .26 C.4Calculatio
16、n of results 27 C.5Compliance.28 Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy, BSI ? EN 12697-31:2007 (E) 3 C.6Report.28 C.7Precision and bias.28 Bibliography30 Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy, BSI ? EN 12697-31:2007 (E) 4 Foreword This document (EN
17、 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 standard, either by publication of an identical text or by endorsement, at the latest by October 2007, and c
18、onflicting 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 12697-1, Bituminous mixtures Test methods for hot mix asphalt Part 1: Soluble binder content. EN 12697-2, Bitum
19、inous 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: Rotary evaporator. EN 12697-4, Bituminous mixtures Test methods for hot mix asphalt Part 4: Bitumen recovery
20、: 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 asphalt Part 6: Determination of bulk density of bituminous specimens. EN 12697-7, Bituminous mixtures Test
21、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 void characteristics of bituminous specimens. EN 12697-9, Bituminous mixtures Test methods for hot mix as
22、phalt 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 hot mix asphalt Part 11: Determination of the affinity between aggregate and bitumen. EN 12697-12, Bitumi
23、nous 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: Temperature measurement. EN 12697-14, Bituminous mixtures Test methods for hot mix asphalt Part 14: Water
24、 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 asphalt Part 16: Abrasion by studded tyres. Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy, BS
25、I ? 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 mixtures Test methods for hot mix asphal
26、t 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 specimens. EN 12697-22, Bituminous mixtures
27、 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 asphalt Part 24: Resistance to fatig
28、ue. 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: Sampling. EN 12697-28, Bituminous m
29、ixtures 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. EN 12697-30, Bituminous mixtures Tes
30、t 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 Part 32: Laboratory compaction of
31、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, Bituminous mixtures Test methods for ho
32、t 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 for the adhesivity of binder on preco
33、ated 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. Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy,
34、 BSI ? 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 asphalt P
35、art 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 implement this
36、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 and United
37、 Kingdom. Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy, BSI ? 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 she
38、aring action and a vertical resultant force applied by a mechanical 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
39、 height and/or at a predetermined density, for subsequent testing 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 th
40、e preparation of specimens for mechanical testing. This European 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
41、 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 12697-5, Bituminous mixtures Tests methods for hot mix asphalt Part 5: Determination
42、 of the maximum density EN 12697-6, Bituminous mixtures Test 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, B
43、ituminous mixtures Test methods for hot mix asphalt Part 27: 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) Su
44、rface texture: Profile method Terms, definitions and surface 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) Licensed copy:PONTYPRIDD COLLEGE, 27/01/2008, Uncontrolled Copy, BSI
45、 ? 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 compactor type representative model of a given production compactor 3.1.2 force-angle calibration chain force F and the an
46、gle 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 type are adjusted using the determined values of F and . The conformity of a production gyratory compactor to a type can be
47、 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 bituminous mixtures, produced under defined conditions from constituents stored at a given site, of which the compositions are
48、 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 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-sectional plane and the upper metallic insert as a mould is gyrated