1、BS EN12697-12:2008ICS 93.080.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDBituminous mixtures Test methods for hotmix asphaltPart 12: Determination of the watersensitivity of bituminous specimensThis British Standardwas published under theauthority of the S
2、tandardsPolicy and StrategyCommittee on 31 July 2008 BSI 2008ISBN 978 0 580 60790 5Amendments/corrigenda issued since publicationDate CommentsBS EN 12697-12:2008National forewordThis British Standard is the UK implementation of EN 12697-12:2008. Itsupersedes BS EN 12697-12:2003 which is withdrawn.Th
3、e UK participation in its preparation was entrusted to TechnicalCommittee B/510/1, Asphalt products.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are respo
4、nsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.BS EN 12697-12:2008EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 12697-12June 2008ICS 93.080.20 Supersedes EN 12697-12:2003 English VersionBituminous mixtures - Test methods for hot
5、 mix asphalt - Part12: Determination of the water sensitivity of bituminousspecimensMlanges bitumineux - Mthodes dessai pour mlangehydrocarbon chaud - Partie 12 : Dtermination de lasensibilit leau des prouvettes bitumineusesAsphalt - Prfverfahren fr Heiasphalt - Teil 12:Bestimmung der Wasserempfindl
6、ichkeit von Asphalt-ProbekrpernThis European Standard was approved by CEN on 18 May 2008.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 list
7、s and bibliographical references concerning such nationalstandards may be 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 respons
8、ibility of a CEN member into its own language and notified to the CEN Management 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
9、, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassar
10、t, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12697-12:2008: EBS EN 12697-12:2008EN 12697-12:2008 (E) 2 Contents page Foreword3 1 Scope 6 2 Normative references 6 3 Terms and definitions7 4 Principle7 5 A
11、pparatus .8 5.1 Method A.8 5.2 Method B.8 5.3 Method C.9 6 Specimen preparation .9 6.1 Method A.9 6.2 Method B.10 6.3 Method C.12 7 Test procedure.12 7.1 Method A.12 7.2 Method B.13 7.3 Method C (see Figure 1) 13 8 Calculation14 8.1 Method A.14 8.2 Method B.14 8.3 Method C.14 9 Test report 14 9.1 Me
12、thods A and B14 9.2 Method C.15 10 Precision.15 10.1 Method A.15 10.2 Method B.15 10.3 Method C.16 Bibliography 17 BS EN 12697-12:2008EN 12697-12:2008 (E) 3 Foreword This document (EN 12697-12:2008) has been prepared by Technical Committee CEN/TC 227 “Road materials”, the secretariat of which is hel
13、d 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 December 2008, and conflicting national standards shall be withdrawn at the latest by December 2008. Attention is drawn to the possibility
14、 that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12697-12:2003. This document is one of a series of standards as listed below: EN 12697-1, Bitum
15、inous 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: Rotary evapor
16、ator 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 asphalt Part 6:
17、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 void characteri
18、stics 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 hot mix asphalt Pa
19、rt 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: Temperature measurem
20、ent EN 12697-14, Bituminous mixtures Test methods for hot mix asphalt Part 14: Water content BS EN 12697-12:2008EN 12697-12:2008 (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
21、 for hot mix 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
22、 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 specimens EN 12697
23、-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 asphalt Part 2
24、4: 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: Sampling EN 1269
25、7-28, 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 EN 12697-30, Bitumin
26、ous 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 Part 32: Laboratory
27、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, Bituminous mixtures Test met
28、hods 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 for the adhesivity of binder
29、 on precoated chippings for HRA BS EN 12697-12:2008EN 12697-12:2008 (E) 5 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, Bit
30、uminous 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 matters in recl
31、aimed 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, Bulgaria, Cy
32、prus, 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 the United Kingdom. BS EN 12697-12:2008EN 12697-12:2008
33、 (E) 6 1 Scope This European Standard describes three test methods for determining the effect of saturation and accelerated water conditioning. These methods can be used to evaluate the effect of moisture with or without anti-stripping additives including liquids, such as amines, and fillers, such a
34、s hydrated lime or cement: method A uses the indirect tensile strength of cylindrical specimens of bituminous mixtures; method B uses the compression strength of cylindrical specimens of bituminous mixtures; method C defines the bonding value of soft asphalt mixtures 1 h after mixing, where the bond
35、ing of bitumen and aggregate can be equated to a bonding value. Method A and method B give the same result on average. However, if the slenderness of the specimens is less than 0,5, method B is not suitable. Method C is suitable for soft asphalt mixtures with bitumen of viscosity at 60 C of 4000 mm2
36、/s or less, for which methods A and B are not suitable. NOTE Methods A and B are suitable for soft asphalt mixtures with bitumen of viscosity at 60 C greater than 4000 mm2/s. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated r
37、eferences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1426, Bitumen and bituminous binders Determination of needle penetration EN 12697-6, Bituminous mixtures Test methods for hot mix asphalt Part 6: De
38、termination 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 12697-23, Bituminous mixtures Test methods for hot mix asphalt Part 23: Determination of the indirect tensile
39、strength of bituminous specimens EN 12697-27, Bituminous mixtures Test methods for hot mix asphalt Part 27: Sampling 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 Test methods for ho
40、t 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 bituminous mixture
41、s by vibratory compactor EN 12697-33, Bituminous mixtures Test methods for hot mix asphalt Part 33: Specimen prepared by roller compactor BS EN 12697-12:2008EN 12697-12:2008 (E) 7 EN 13108-1, Bituminous mixtures Material specification Part 1: Asphalt concrete 3 Terms and definitions For the purposes
42、 of this document, the following terms and definitions apply. 3.1 cylindrical specimen laboratory-made (e.g. gyratory- or impact-compacted) cylindrical moulded specimen or core taken from a bituminous layer or slab 3.2 water sensitivity (in accordance with method A) the ITSR value obtained on compac
43、ted specimens of a bituminous mixture 3.3 water sensitivity (in accordance with method B) the i/C value obtained on compacted specimens of wet (water conditioned) specimens to that of dry specimens of a bituminous mixture 3.4 indirect tensile strength ratio (ITSR) ratio of the indirect tensile stren
44、gth of wet (water conditioned) specimens to that of dry specimens, expressed in percent 3.5 indirect tensile strength (IST) maximum tensile stress applied to a cylindrical specimen loaded at the specified test temperature and speed of displacement of the compression testing machine, determined in ac
45、cordance with EN 12697-23 3.6 compressive strength ratio (i/C) ratio of the strength of a specimen loaded in compression at the specified test temperature and speed of displacement of the press, of wet (water conditioned) specimens to that of dry specimens expressed in percent 3.7 bonding value amou
46、nt of aggregate fines and bitumen which comes loose from 1000 g sample of soft asphalt mixture when mixed with 1500 ml of water in a graduated glass beaker 3.8 precision closeness of agreement between independent test results obtained under stipulated conditions. NOTE 1: Precision depends only on th
47、e distribution of random errors and does not relate to the true value or the specified value. NOTE 2: The measure of precision is usually expressed in terms of imprecision and computed as a standard deviation of the test results. Less precision is reflected by a larger standard deviation. NOTE 3: “I
48、ndependent test results“ means results obtained in a manner not influenced by any previous result on the same or similar test object. Quantitative measures of precision depend critically on the stipulated conditions. Repeatability and reproducibility conditions are particular sets of extreme conditi
49、ons. BS EN 12697-12:2008EN 12697-12:2008 (E) 8 4 Principle Method A: A set of cylindrical test specimens is divided into two equally sized subsets and conditioned. One subset is maintained dry at room temperature while the other subset is saturated and stored in water at elevated conditioning temperature. After conditioning, the indirect tensi
