1、June 2012 Translation by DIN-Sprachendienst.English price group 20No part of this translation 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 9
2、3.080.20!$|e|“1896689www.din.deDDIN EN 12697-26Bituminous mixtures Test methods for hot mix asphalt Part 26: StiffnessEnglish translation of DIN EN 12697-26:2012-06Asphalt Prfverfahren fr Heiasphalt Teil 26: SteifigkeitEnglische bersetzung von DIN EN 12697-26:2012-06Mlanges bitumineux Mthodes dessai
3、 pour enrobs chaud Partie 26: RigiditTraduction anglaise de DIN EN 12697-26:2012-06SupersedesDIN EN 12697-26:2004-10www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 52 pages05.12 DIN EN 12697-26:2012-06 2 A comma is used as the decimal m
4、arker. National foreword This standard has been prepared by Technical Committee CEN/TC 227 “Road materials” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Working Committee NA
5、 005-10-10 AA Asphalt. Amendments This standard differs from DIN EN 12697-26:2004-10 as follows: a) some editorial amendments have been made (e.g. addition of further symbols and units); b) Clauses 5 “Sample preparation” and 6 “Checking of the testing equipment” have been added; c) Equation (10) has
6、 been corrected; d) Table A.1 “Minimum dimensions of the specimens” has been corrected; e) some corrections have been made in Subclause A.3.3, and Subclauses A.3.4 and A.3.5 have been deleted; f) Subclause A.4.1 “Stabilising the specimen” has been deleted; g) Subclause A.4.3 (formerly A.4.2.3) has b
7、een corrected and the NOTE has been deleted; h) Subclause B.2.8 “Calibration” has been deleted; i) Subclause B.3.2 “Sample manufacture” has been revised; j) Subclause B.4.1 “Stabilising the specimen” has been deleted. Previous editions DIN EN 12697-26: 2004-10 EUROPEAN STANDARD NORME EUROPENNE EUROP
8、ISCHE NORM EN 12697-26 March 2012 ICS 93.080.20 Supersedes EN 12697-26:2004English Version Bituminous mixtures - Test methods for hot mix asphalt - 26: Stiffness Mlanges bitumineux - Mthodes dessai pour enrobs chaud - Partie 26: Rigidit Asphalt - Prfverfahren fr Heiasphalt - Teil 26: SteifigkeitThis
9、 European Standard was approved by CEN on 18 September 2011. CEN members are bound 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 refer
10、ences concerning such national standards may be obtained on application to the CEN-CENELEC 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
11、 member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ice
12、land, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centr
13、e: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12697-26:2012: EPart EN 12697-26:2012 (E) 2 Contents PageForeword 41 Scope 72 Normative references 73 Terms, definitions and symbols .73.1 Te
14、rms and definitions .73.2 Symbols 94 Principle . 105 Sample preparation 105.1 Age of the specimens . 105.2 Drying of the specimen 105.3 Dimensions and bulk density of the specimens . 105.4 Temperature of the specimen before testing . 105.5 Number of test specimens . 106 Checking of the testing equip
15、ment . 107 Test methods . 117.1 General . 117.2 Tests with sinusoidal or pulse loading. 117.3 Controlled strain rate loading 128 Temperatures 139 Expression of results . 1410 Test report . 1610.1 General . 1610.2 Information on specimen . 1610.3 Information on test method . 1710.4 Information on the
16、 test and results . 1710.5 Optional information 1711 Precision 17Annex A (normative) Two point bending test on trapezoidal specimens (2PB-TR) or on prismatic specimens (2PB-PR) . 18A.1 Principle . 18A.2 Equipment . 18A.3 Specimen preparation 19A.4 Procedure 20Annex B (normative) Three point bending
17、test on prismatic specimens (3PB-PR) and four point bending test on prismatic specimens (4PB-PR) 21B.1 Principle . 21B.2 Equipment . 22B.3 Specimen preparation 23B.4 Procedure 23Annex C (normative) Test applying indirect tension to cylindrical specimens (IT-CY) 25C.1 Principle . 25C.2 Equipment . 25
18、C.3 Specimen preparation 30DIN EN 12697-26:2012-06 EN 12697-26:2012 (E) 3 PageC.4 Mode of operation .31Annex D (normative) Direct tension-compression test on cylindrical specimens (DTC-CY) . 33D.1 Principle 33D.2 Equipment 33D.3 Specimen preparation . 33D.4 Mode of operation . 34Annex E (normative)
19、Test applying direct tension to cylindrical specimens (DT-CY) or to prismatic specimens (DT-PR) 36E.1 Principle 36E.2 Equipment 36E.3 Specimen preparation . 36E.4 Mode of operation . 37E.5 Derivation of the master-curve 38E.6 Determination of the stiffness modulus for the fixed loading time . 41Anne
20、x F (normative) Test applying Cyclic indirect tension to cylindrical specimens (CIT-CY) . 42F.1 Principle 42F.2 Equipment 42F.3 Specimen preparation . 44F.4 Mode of operation . 45Annex G (informative) Derivation of the master curve . 47G.1 Principle 47G.2 Theoretical background 48G.3 Experimental da
21、ta 49G.4 Test report 50DIN EN 12697-26:2012-06 EN 12697-26:2012 (E) 4 Foreword This document (EN 12697-26:2012) 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, eith
22、er by publication of an identical text or by endorsement, at the latest by September 2012, and conflicting national standards shall be withdrawn at the latest by September 2012. This document will supersede EN 12697-26:2004. Attention is drawn to the possibility that some of the elements of this doc
23、ument may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. The main changes deal with putting similar procedures in all the test in the general part of the standard. Also the correct wording is applied within all the tes
24、t procedures. 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 size distribution EN 12697-3
25、, 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 hot mix asphalt Part 5: Determination of
26、 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 bituminous specimens by gamma rays EN 12697-8,
27、 Bituminous mixtures Test methods for hot mix asphalt Part 8: Determination of void characteristics of bituminous specimens EN 12697-10, Bituminous mixtures Test methods for hot mix asphalt Part 10: Compactability EN 12697-11, Bituminous mixtures Test methods for hot mix asphalt Part 11: Determinati
28、on 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: Temperature measurement EN 12697-14, B
29、ituminous mixtures Test methods for hot mix asphalt Part 14: Water content DIN EN 12697-26:2012-06 EN 12697-26:2012 (E) 5 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
30、asphalt Part 16: Abrasion by studded 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
31、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 specimens EN 12697-22, Bitumino
32、us 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 asphalt Part 24: Resistance
33、 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: Sampling EN 12697-28, Bitumin
34、ous 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 methods for hot mix asphalt Part 29: Determination of the dimensions of a bituminous specimen EN 12697-30, Bituminous mixtures
35、 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 Part 32: Laboratory compaction o
36、f bituminous mixtures by a 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 h
37、ot 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 precoa
38、ted chippings for HRA DIN EN 12697-26:2012-06 EN 12697-26:2012 (E) 6 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 12697-40, Bitumino
39、us 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 foreign matters in reclaimed asphal
40、t EN 12697-43, Bituminous mixtures Test methods for hot mix asphalt Part 43: Resistance to fuel EN 12697-44, Bituminous mixtures Test methods for hot mix asphalt Part 44; Crack propagation by semi-circular bending test prEN 12697-45, Bituminous mixtures Test methods for hot mix asphalt Part 45: Satu
41、ration ageing tensile stiffness (SATS) conditioning test prEN 12697-46, Bituminous mixtures Test methods for hot mix asphalt Part 46: Low temperature cracking and properties by uniaxial tension tests EN 12697-47, Bituminous mixtures Test methods for hot mix asphalt Part 47: Determination of the ash
42、content of natural asphalts prEN 12697-48, Bituminous mixtures Test methods for hot mix asphalt Part 48: Inter-layer bond strength1)prEN 12697-49, Bituminous mixtures Test methods for hot mix asphalt Part 49: Skid resistance of asphalt in the laboratory1)prEN 12697-50, Bituminous mixtures Test metho
43、ds for hot mix asphalt Part 50: Scuffing resistance of surface course1)According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmar
44、k, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. 1) In preparation DIN EN 12697-26:2012-06 EN 12697-26:2012
45、(E) 7 1 Scope This European Standard specifies the methods for characterising the stiffness of bituminous mixtures by alternative tests, including bending tests and direct and indirect tensile tests. The tests are performed on compacted bituminous material under a sinusoidal loading or other control
46、led loading, using different types of specimens and supports. The procedure is used to rank bituminous mixtures on the basis of stiffness, as a guide to relative performance in the pavement, to obtain data for estimating the structural behaviour in the road and to judge test data according to specif
47、ications for bituminous mixtures. As this standard does not impose a particular type of testing device the precise choice of the test conditions depends on the possibilities and the working range of the used device. For the choice of specific test conditions, the requirements of the product standards for bituminous mixtures should be respected. The applicability of this document is described in the product standards for bituminous mixtures. 2 Normative references The following referenced documents are indispensable for the appl
