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2、itish Standard is the UK implementation of EN 12697-30:2012.It supersedes BS EN 12697-30:2004 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/510/1, Asphalt products.A list of organizations represented on this committee can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 31 Scope 72 Normative references 73 Terms and definitions .74 Principle 75 Apparatus .75.1 Impact compactor with steel anvil .75.1.1 General 75.1.2 Conditions of installation . 115.2 Impact compactor with wooden pedestal 125.2.1 General . 125.3 Compaction mould
12、. 125.4 Ovens or hot plates 135.5 Steel block . 135.6 Shields, baffle plates or sand baths . 135.7 Plate . 136 Shape and dimensions of the specimens 197 Specimen preparation 198 Procedure 199 Report 20Annex A (informative) Device for the measurement of the specimens thickness during compaction 21Ann
13、ex B (informative) Checking procedure for impact compaction devices 22B.1 Equipment . 22B.2 Procedure 22B.3 Calculations and definition of impact dynamics: 22B.4 Validation . 23B.5 Proposed process for validation of test equipment impact dynamics: 23B.6 Checklist 24Bibliography . 25BS EN 12697-30:20
14、12EN 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 standard, either by publication of an identical text or by
15、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 rights. CEN and/or CENELEC shall not be held responsible for
16、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; informative annex for a checking procedure for impact compaction
17、 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 requirement on the moisture content of wooden block pedestal
18、 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; steel block made optional; the time that samples can be
19、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 timing of preparing multiple samples is specified; require
20、ments 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 1: Soluble binder content EN 12697-2, Bituminous mixtures Test meth
21、od 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, Bituminous mixtures Test methods for hot mix asphalt Part 4: B
22、itumen 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 bulk density of bituminous specimens EN 12697-7, Bituminous mi
23、xtures 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 specimens EN 12697-10, Bituminous mixtures Test methods for
24、 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, Bituminous mixtures Test methods for hot mix asphalt Part 12: Determination of the water sensitivity of bitumin
25、ous 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 EN 12697-15, Bituminous mixtures Test methods for hot mix asphalt Part 15: Determination of the se
26、gregation sensitivity EN 12697-16, Bituminous mixtures Test methods 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 asp
27、halt Part 18: Binder drainage EN 12697-19, Bituminous mixtures Test 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 cylindrical specimens EN 12697-21, Bituminous mixtures Test methods f
28、or hot mix asphalt Part 21: 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 asphalt Part 23: Determination of the indirect tensile strength of bituminous specimens EN
29、 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 12697-30:2012 (E) 5 EN 12697-26, Bituminous mixtures Test methods for hot mix asphal
30、t 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 determining binder content, water content and grading EN 12697-29, Bituminous mixtures Test m
31、ethod 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 12697-31, Bituminous mixtures Test methods for hot mix asphalt Part 31: Specimen preparat
32、ion 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 for hot mix asphalt Part 33: Specimen prepared by roller compactor EN 12697-34, Bitum
33、inous 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 hot mix asphalt Part 36: Determination of the thickness of a bituminous pavement EN 12
34、697-37, 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 EN 12697-39, Bituminous mixtures Test methods fo
35、r 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 asphalt Part 41: Resistance to de-icing fluids EN 12697-42, Bituminous mixtures Test methods
36、 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 Test methods for hot mix asphalt Part 44: Crack propagation by semi-circular bending test
37、 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 46: Low temperature cracking and properties by uniaxial tension tests. EN 12697-47, Bitu
38、minous 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 mix asphalt Part 48: Inter-layer bond strength prEN 12697-491), Bituminous mixtures Test m
39、ethods 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 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the f
40、ollowing 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, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, S
41、lovakia, 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 bituminous mixtures by impact compaction. Such specimens are primarily used to determine
42、 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 resulting from work site sampling), with not more than 15 % by mass retained on the 22,
43、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 references, only the edition cited applies. For undated references, the latest edition of th
44、e 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 10: Compactibility EN 12697-27, Bituminous mixtures Test methods for hot mix asphalt Part
45、 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, Bitumen and bituminous binders Specification framework for polymer modified bitumens 3 T
46、erms 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 used Note 1 to entry: The number of blows is commonly 50 but can be 35 or 75. 4 Principle
47、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 mould. The mixture is then compacted into one of the specified impact compactors by the s
48、liding 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 down 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 described. BS EN 12697-30:2012EN 12
