1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12697-30:2012Bituminous mixtures Testmethods for hot mix asphaltPart 30: Specimen preparation by impactcompactorBS EN 12697-30:2012 BRITISH STANDARDNational forewordThis Br
2、itish Standard is the UK implementation of EN 12697-30:2012.It supersedes BS EN 12697-30:2004 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/510/1, Asphalt products.A list of organizations represented on this committee can beobtained on request to it
3、s secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 75767 9ICS 93.080.20Compliance with a British Standard ca
4、nnot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 May 2012.Amendments issued since publicationDate Text affectedBS EN 12697-30:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12697-30 April
5、2012 ICS 93.080.20 Supersedes EN 12697-30:2004+A1:2007English Version Bituminous mixtures - Test methods for hot mix asphalt - Part 30: Specimen preparation by impact compactor Mlanges bitumineux - Mthodes dessai pour mlange hydrocarbon chaud - Partie 30: Confection dprouvettes par compacteur impact
6、 Asphalt - Prfverfahren fr Heiasphalt - Teil 30: Probenvorbereitung, Marshall-Verdichtungsgert This European Standard was approved by CEN on 26 February 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard th
7、e 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-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, Fren
8、ch, 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-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria,
9、 Croatia, 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, Turkey and United Kingdom. EUROPEAN COMMITTEE
10、FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: 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 12697-30:2012: EBS EN 12697-30:2012EN 12697
11、-30:2012 (E) 2 Contents Page Foreword 3g31 Scope 7g32 Normative references 7g33 Terms and definitions .7g34 Principle 7g35 Apparatus .7g35.1 Impact compactor with steel anvil .7g35.1.1 General 7g35.1.2 Conditions of installation . 11g35.2 Impact compactor with wooden pedestal 12g35.2.1 General . 12g
12、35.3 Compaction mould . 12g35.4 Ovens or hot plates 13g35.5 Steel block . 13g35.6 Shields, baffle plates or sand baths . 13g35.7 Plate . 13g36 Shape and dimensions of the specimens 19g37 Specimen preparation 19g38 Procedure 19g39 Report 20g3Annex A (informative) Device for the measurement of the spe
13、cimens thickness during compaction 21g3Annex B (informative) Checking procedure for impact compaction devices 22g3B.1 Equipment . 22g3B.2 Procedure 22g3B.3 Calculations and definition of impact dynamics: 22g3B.4 Validation . 23g3B.5 Proposed process for validation of test equipment impact dynamics:
14、23g3B.6 Checklist 24g3Bibliography . 25g3BS EN 12697-30:2012EN 12697-30:2012 (E) 3 Foreword This document (EN 12697-30:2012) 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 s
15、tandard, either by publication of an identical text or by endorsement, at the latest by October 2012, and conflicting national standards shall be withdrawn at the latest by October 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rig
16、hts. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12697-30:2004+A1:2007. The following is a list of significant technical changes since the previous edition: allowance made for some oversize aggregate in the scope; inform
17、ative annex for a checking procedure for impact compaction devices added; the tolerance on the angle of the sliding mass in reduced; the requirement for inspections to establish that the safety requirements have been complied with has been deleted; densities defined in Mg/m3rather than kg/m3; the re
18、quirement on the moisture content of wooden block pedestal is moved to a note; the notes on the verification of the wooden block pedestal and the foot assembly have been clarified; definition of the steel compaction hammer tightened up; separate figure provided of typical compactor with wooden block
19、; steel block made optional; the time that samples can be stored at elevated temperature reduced; the uniform upper limit on the temperature of 130 C removed, leaving just the reference temperature in EN 12697-35; the limitations of heating of automatic compaction hammers is clarified in notes; the
20、timing of preparing multiple samples is specified; requirements for filling the mould and reversing the specimen during compaction have been edited. This European Standard is one of a series of standards as listed below: EN 12697-1, Bituminous mixtures Test methods for hot mix asphalt Part g20: Solu
21、ble binder content EN 12697-2, Bituminous mixtures Test method for hot mix asphalt Part 2: Determination of particle size distribution BS EN 12697-30:2012EN 12697-30:2012 (E) 4 EN 12697-3, Bituminous mixtures Test methods for hot mix asphalt Part 3: Bitumen recovery: Rotary evaporator EN 12697-4, Bi
22、tuminous 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: Determination of bu
23、lk 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 characteristics of bituminous
24、 specimens EN 12697-10, Bituminous mixtures Test methods for hot mix asphalt Part g200: Compactibility EN 12697-11, Bituminous mixtures Test methods for hot mix asphalt Part g20g20: Determination of the affinity between aggregate and bitumen EN 12697-12, Bituminous mixtures Test methods for hot mix
25、asphalt Part g202: Determination of the water sensitivity of bituminous specimens EN 12697-13, Bituminous mixtures Test methods for hot mix asphalt Part g203: Temperature measurement EN 12697-14, Bituminous mixtures Test methods for hot mix asphalt Part g204: Water content EN 12697-15, Bituminous mi
26、xtures Test methods for hot mix asphalt Part g205: Determination of the segregation sensitivity EN 12697-16, Bituminous mixtures Test methods for hot mix asphalt Part g206: Abrasion by studded tyres EN 12697-17, Bituminous mixtures Test methods for hot mix asphalt Part g207: Particle loss of porous
27、asphalt specimen EN 12697-18, Bituminous mixtures Test methods for hot mix asphalt Part g208: Binder drainage EN 12697-19, Bituminous mixtures Test methods for hot mix asphalt Part g209: Permeability of specimen EN 12697-20, Bituminous mixtures Test methods for hot mix asphalt Part 20: Indentation u
28、sing cube or cylindrical specimens EN 12697-21, Bituminous mixtures Test methods for hot mix asphalt Part 2g20: Indentation using plate specimens 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 asphal
29、t 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 EN 12697-25, Bituminous mixtures Test methods for hot mix asphalt Part 25: Cyclic compression test BS EN 12697-30:2012EN
30、12697-30:2012 (E) 5 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 mixtures Test methods for hot mix asphalt Part 28: Preparation of samples for determini
31、ng 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 Test methods for hot mix asphalt Part 30: Specimen preparation by impact compactor EN 12697
32、-31, Bituminous mixtures Test methods for hot mix asphalt Part 3g20: Specimen preparation by gyratory compactor EN 12697-32, Bituminous mixtures Test methods for hot mix asphalt Part 32: Laboratory compaction of bituminous mixtures by vibratory compactor EN 12697-33, Bituminous mixtures Test methods
33、 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 hot mix asphalt Part 35: Laboratory mixing EN 12697-36, Bituminous mixtures Test methods for
34、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 precoated chippings for HRA EN 12697-38, Bituminous mixtures Test methods for hot mix asphalt Part
35、 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, Bituminous mixtures Test methods for hot mix asphalt Part 40: In situ drainability EN 12697-41, Bituminous mixtures Test methods for hot mix asphal
36、t Part 4g20: Resistance to de-icing fluids EN 12697-42, Bituminous mixtures Test methods for hot mix asphalt Part 42: Amount of coarse foreign matters in reclaimed asphalt EN 12697-43, Bituminous mixtures Test methods for hot mix asphalt Part 43: Resistance to fuel EN 12697-44, Bituminous mixtures T
37、est 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: Saturation ageing tensile stiffness (SATS) conditioning test prEN 12697-46, Bituminous mixtures Test methods for hot mix asphalt Part
38、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 content of natural asphalt BS EN 12697-30:2012EN 12697-30:2012 (E) 6 prEN 12697-481), Bituminous mixtures Test methods for hot mi
39、x asphalt Part 48: Inter-layer bond strength prEN 12697-491), Bituminous mixtures Test methods for hot mix asphalt Part 49: Determination of friction after polishing. prEN 12697-501), Bituminous mixtures Test methods for hot mix asphalt Part 50: Scuffing resistance of surface course asphalt Accordin
40、g 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, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
41、 Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. 1)In preparationBS EN 12697-30:2012EN 12697-30:2012 (E) 7 1 Scope This European Standard specifies methods of moulding specimens from
42、bituminous mixtures by impact compaction. Such specimens are primarily used to determine bulk density and other technological characteristics e.g. Marshall stability and flow according to EN 12697-34. This European Standard applies to bituminous mixtures (both those made up in a laboratory and those
43、 resulting from work site sampling), with not more than 15 % by mass retained on the 22,4 mm sieve and none on the 31,5 mm sieve. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated refe
44、rences, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 12591, Bitumen and bituminous binders Specifications for paving grade bitumens EN 12697-10, Bituminous mixtures Test methods for hot mix asphalt Part g
45、200: Compactibility EN 12697-27, Bituminous mixtures Test methods for hot mix asphalt Part 27: Sampling EN 12697-35:2004+A1, Bituminous mixtures Test methods for hot mix asphalt Part 35: Laboratory mixing EN 13924, Bitumen and bituminous binders Specifications for hard paving grade bitumens EN 14023
46、, Bitumen and bituminous binders Specification framework for polymer modified bitumens 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 set number number of blows per side that is set for the test method for which the sample is intended to be
47、used Note 1 to entry: The number of blows is commonly 50 but can be 35 or 75. 4 Principle To prepare the specimens, tempered asphalt mix, either freshly mixed according to EN 12697-35:2004+A1 or sampled on site or plant according to EN 12697-27 has to be transferred into a specified steel compaction
48、 mould. The mixture is then compacted into one of the specified impact compactors by the sliding mass falling from a specified height with a specified number of blows within a specified time onto the foot of the hammer, located on top of the asphalt specimen. The specimen is then allowed to cool dow
49、n to room temperature. 5 Apparatus 5.1 Impact compactor with steel anvil 5.1.1 General 5.1.1.1 The impact compactor with steel anvil (see Figure 1), a machine-driven apparatus shall comprise the components listed in 5.1.1.2 to 5.1.1.9. NOTE In Annex B, a guideline for possible checking based on self-composed equipment is des
