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1、BRITISH STANDARD BS EN 12697-31:2004 Bituminous mixtures Test methods for hot mix asphalt Part 31: Specimen preparation by gyratory compactor The European Standard EN 12697-31:2004 has the status of a British Standard ICS 93.080.20 ? Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 11:42:58 GM
2、T+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 12697-31:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 9 August 2004 BSI 9 August 2004 ISBN 0 580 44227 6 National foreword This British Standard is the official English language version o
3、f EN 12697-31:2004. 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, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its
4、 secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “ International Standards Correspondence Index” , or by using the “ Search” facility of the BSI Electron
5、ic Catalogue or of British Standards Online. This 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 does not of itself confer immunity from legal obligations. aid enquirers to unde
6、rstand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document compris
7、es a front cover, an inside front cover, the EN title page, pages 2 to 17 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 2
8、8 11:42:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12697-31 July 2004 ICS 93.080.20 English version Bituminous mixtures - Test methods for hot mix asphalt - Part 31: Specimen preparation by gyratory compactor Mlanges bitumineux - Mthodes dessai
9、 pour mlange hydrocarbon chaud - Partie 31: Confection dprouvettes la presse compactage giratoire Asphalt - Prfverfahren fr Heiasphalt - Teil 31: Herstellung von Probekrpern - Gyrator-Verdichter This European Standard was approved by CEN on 2 March 2004. CEN members are bound to comply with the CEN/
10、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 Central Secretariat or to a
11、ny 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 Central Secretariat has the same status as the official versions.
12、CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
13、 and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2004 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12
14、697-31:2004: E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 11:42:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12697-31:2004 (E) 2 Contents page Foreword3 1 Scope 6 2 Normative references6 3 Terms and definitions, symbols and abbreviations.7 3.1 Terms and definitions .7 3.2 Symbols7 4
15、Principle8 5 Apparatus .8 5.1 Test device .8 5.2 Metallic moulds9 5.3 Round metallic inserts 9 5.4 Device for measuring the distance between inserts10 5.5 Device for counting the number of rotations to within one revolution10 6 Preparation of specimens.10 6.1 Mass of mixture to be introduced in the
16、mould10 6.1.1 Preparation of specimens of a given height at a predetermined bulk density .10 6.1.2 Derivation of a curve density versus number of gyrations.10 6.2 Preparation of test pieces.10 7 Test procedure.11 7.1 Preliminary setting.11 7.1.1 Pre-load.11 7.1.2 Force F11 7.1.3 Setting of the angle
17、 of inclination11 7.1.4 Speed of rotation .11 7.1.5 Test temperature11 7.2 Compaction of specimens12 7.2.1 Start of compaction.12 7.2.2 Preparation of specimens of a given height at a predetermined density12 7.2.3 Derivation of a curve density or void content versus number of gyrations13 8 Test repo
18、rt13 9 Precision.14 Annex A (normative) Procedure for setting the gyratory-type angle and the type conformity (force F is fixed) 15 A.1 Gyratory-type testing procedure15 A.1.1 Central reference materials for gyratory-type testing15 A.1.2 Gyratory-type angle test .16 A.2 Procedure to test the conform
19、ity of a gyratory compactor to a type.16 A.3 Summary of the gyratory calibration chain 17 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 11:42:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ? EN 12697-31:2004 (E) 3 Foreword This document (EN 12697-31:2004) has been prepared by Technical Commi
20、ttee 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 January 2005, and conflicting national standards shall be withdrawn at
21、the latest by August 2005. The method described in the annex A for setting the angle is only intended as an interim measure until the use of specially designed equipment has been fully validated. The procedure for a revised annex is currently being investigated by CEN/TC 227 and may be used in a fut
22、ure revision of this European Standard. 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, Bituminous mixtures Test methods for hot mix asphalt Part 2: Determination of particle s
23、ize 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: Fractionating column. EN 12697-5, Bituminous mixtures Test methods for ho
24、t 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 methods for hot mix asphalt Part 7: Determination of bulk density of bi
25、tuminous 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 asphalt - Part 9: Determination of the reference density. EN 12697-
26、10, Bituminous mixtures Test methods for hot mix asphalt Part 10: Compactability. EN 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:
27、 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 content. Licensed Copy: sheffieldun sheffieldun, na, S
28、at Oct 28 11:42:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ? EN 12697-31:2004 (E) 4 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 studd
29、ed tyres. 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 asphalt Part 19: Permea
30、bility 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 Test met
31、hods 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 fatigue. p
32、rEN 12697-25, Bituminous 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,
33、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. EN 12697-30, Bitumin
34、ous mixtures Test methods for hot mix asphalt Part 30: Specimen preparation, 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
35、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. prEN 12697-35, Bituminous mixtures
36、 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. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 11:42:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
37、 ? EN 12697-31:2004 (E) 5 EN 12697-37, Bituminous mixtures Test methods 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. prEN 12697-39,
38、Bituminous mixtures Test methods for hot mix asphalt Part 39: Binder content by ignition. prEN 12697-40, Bituminous mixtures Test methods for hot mix asphalt Part 40: In-situ drainability of porous asphalt. prEN 12697-41, Bituminous mixtures Test methods for hot mix asphalt Part 41: Resistance to de
39、-icing fluids. prEN 12697-42, Bituminous mixtures Test methods for hot mix asphalt Part 42: Amount of foreign matters in reclaimed asphalt. prEN 12697-43, Bituminous mixtures Test methods for hot mix asphalt Part 43: Resistance to fuel. No existing European Standard is superseded. According to the C
40、EN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembour
41、g, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 11:42:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ? EN 12697-31:2004 (E) 6 1 Scope This document specifies the method for compa
42、ction 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 can be used for a) determination of the air voids content of a mixture for a giv
43、en number of gyrations; b) derivation of a curve density versus number of gyrations; c) preparation of specimens of given height at a predetermined density, for subsequent testing of their mechanical properties. For purposes a) and b), the performance based procedure of the annex A specifies a calib
44、ration chain so that the result of the test should be independent from the used type of gyratory compactor. For purpose c), compliance with annex A may be not necessary. This European Standard applies to bituminous mixtures (both those made up in laboratory and those resulting from work site samplin
45、g), 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. For undated references, the latest edition of the referenced document (inc
46、luding any amendments) applies. EN 12591, Bitumen and bituminous binders - Specifications for paving grade bitumens. 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 - Pa
47、rt 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. prEN 12697-35, Bituminous mixtures - Test methods for hot mix asphalt - Part 35: Laboratory mixing.
48、 prEN 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 6508-1, Metallic materials - Rockwell hardness
49、test - Part 1: Test method (scales A, B, C, D, E, F, G, H, K, N, T) (ISO 6508-1:1999). ISO 5725-2; Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method. Licensed Copy: sheffieldun sheffieldun,