1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12697-20:2012Bituminous mixtures Testmethods for hot mix asphaltPart 20: Indentation using cube orcylindrical specimens (CY)BS EN 12697-20:2012 BRITISH STANDARDNational for
2、ewordThis British Standard is the UK implementation of EN 12697-20:2012. It supersedes BS EN 12697-20:2003 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/510/1, Asphalt products.A list of organizations represented on this committee can be obtained o
3、n request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012ISBN 978 0 580 75768 6 ICS 93.080.20 Compliance with a
4、 British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2012.Amendments issued since publicationDate T e x t a f f e c t e dBS EN 12697-20:2012EUROPEAN STANDARD NORME EUROPENNE EU
5、ROPISCHE NORM EN 12697-20 April 2012 ICS 93.080.20 Supersedes EN 12697-20:2003English Version Bituminous mixtures - Test methods for hot mix asphalt - Part 20: Indentation using cube or cylindrical specimens (CY) Mlanges bitumineux - Mthodes dessai pour mlange hydrocarbon chaud - Partie 20: Essai di
6、ndentation sur cubes ou prouvettes Marshall Asphalt - Prfverfahren fr Heiasphalt - Teil 20: Eindringversuch an Wrfeln oder zylindrischen Probekrpern This European Standard was approved by CEN on 26 February 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipula
7、te 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 CEN-CENELEC Management Centre or to any CEN member. This European Sta
8、ndard 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 CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the na
9、tional standards bodies of 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, Slovakia, Slovenia, Spain, Sweden, Switz
10、erland, Turkey and United Kingdom. EUROPEAN COMMITTEE 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. R
11、ef. No. EN 12697-20:2012: EBS EN 12697-20:2012EN 12697-20:2012 (E) 2 Contents Page Foreword 31 Scope 72 Normative references 73 Apparatus .73.1 Moulding of test cubes of mastic asphalt .73.2 Indentation test apparatus 84 Specimens . 144.1 Specimen type . 144.2 Number of specimens 144.3 Conditioning
12、145 Procedure 145.1 Checking 145.2 Test conditions . 145.3 Cube specimen preparation 155.4 Cylindrical specimen preparation . 155.5 Mounting and temperature conditioning of the specimens . 165.6 Application of the force 166 Result . 167 Precision 168 Test report . 17Bibliography . 18BS EN 12697-20:2
13、012EN 12697-20:2012 (E) 3 Foreword This document (EN 12697-20:2012) 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
14、 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
15、 identifying any or all such patent rights. This document supersedes EN 12697-20:2003. The following is a list of significant technical changes since the previous edition: Marshall specimens (MS) changed to cylindrical specimens (CY) in the title and elsewhere; the scope changed to covering mastic a
16、sphalt and other asphalt rather than mastic asphalt and rolled asphalt to avoid confusion with hot rolled asphalt; parting agent corrected to release agent; the description of the indentation test apparatus is broken down into separate components; accuracy requirement given for the water bath; the r
17、equirement that cylindrical specimens should not be removed from the compaction mould has been removed; requirement on the storage of samples prior to testing has been added; the requirements for the preparation of both cube and cylindrical samples have been redrafted; precision statement edited. EN
18、 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, Bituminous mixtures Test methods for hot mix asphalt Part 3: Bitumen recovery
19、: 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 the maximum density EN 12697-6, Bituminous mixtures Test methods for hot mix a
20、sphalt Part 6: Determination of bulk density of bituminous specimens BS EN 12697-20:2012EN 12697-20:2012 (E) 4 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
21、 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: Compactibility EN 12697-11, Bituminous mixtures Test methods for hot mix asphalt Part 11: Determination of the affinity between aggregate
22、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, Bituminous mixtures Test methods for h
23、ot mix asphalt Part 14: Water content 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 studded tyres EN 12697-17, Bituminous mixtures Test met
24、hods for hot mix asphalt Part 17: Partial 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: Permeability of specimen EN 12697-20, Bituminous mixtures Te
25、st methods for hot mix asphalt Part 20: Indentation using cube or cylindrical specimens EN 12697-21, Bituminous mixtures Test methods for 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,
26、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 EN 12697-25, Bituminous mixtures Test methods for hot mix asphalt Part
27、 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, Bituminous mixtures Test methods for hot mix asphalt Part 28: Preparation of samples for
28、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 Test methods for hot mix asphalt Part 30: Specimen preparation by impact compacto
29、r BS EN 12697-20:2012EN 12697-20:2012 (E) 5 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 mixtures by vibratory compa
30、ctor 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 hot mix asphalt Part 35: Laboratory mixing
31、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 precoated chippings for HRA EN 12697-38, Bitumin
32、ous 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, Bituminous mixtures Test methods for hot mix asphalt Part 40: In situ drainability EN 12697-41, B
33、ituminous 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 reclaimed asphalt EN 12697-43, Bituminous mixtures Test methods for hot mix asphalt Part 43: Resis
34、tance 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: Saturation ageing tensile stiffness (SATS) conditioning test prEN 12697-46, Bituminous
35、 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 content of natural asphalt prEN 12697-48, Bituminous mixtures Test methods for ho
36、t mix asphalt Part 48: Inter-layer bond strength1)prEN 12697-49, Bituminous mixtures Test methods for hot mix asphalt Part 49: Determination of friction after polishing.1)prEN 12697-50, Bituminous mixtures Test methods for hot mix asphalt Part 50: Scuffing resistance of surface course1) 1)In prepara
37、tionBS EN 12697-20:2012EN 12697-20:2012 (E) 6 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, Denmark, Estonia, Finland, Fran
38、ce, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 12697-20:2012EN 12697-20:2012 (E) 7 1 Scope This European Standard specifi
39、es a test method for determining the depth of indentation of mastic asphalt and other asphalt, when force is applied to them via a cylindrical indentor pin with a circular flat-ended base. This European Standard applies to aggregates of maximum nominal size less or equal to 16 mm. 2 Normative refere
40、nces 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 the referenced document (including any amendments) applies. EN
41、 12697-27, Bituminous mixtures Test methods for hot mix asphalt Part 27: Sampling EN 12697-30, Bituminous mixtures Test methods for hot mix asphalt Part 30: Specimen preparation by impact compactor EN 12697-35, Bituminous mixtures Test methods for hot mix asphalt Part 35: Laboratory mixing EN 12970,
42、 Mastic asphalt for waterproofing Definitions, requirements and test methods EN 13108-1, Bituminous mixtures Material specifications Part 1: Asphalt Concrete EN 13108-2, Bituminous mixtures Material specifications Part 2: Asphalt Concrete for very thin layers EN 13108-3, Bituminous mixtures Material
43、 specifications Part 3: Soft Asphalt EN 13108-4, Bituminous mixtures Material specifications Part 4: Hot Rolled Asphalt EN 13108-5, Bituminous mixtures Material specifications Part 5: Stone Mastic Asphalt EN 13108-6, Bituminous mixtures Material specifications Part 6: Mastic asphalt EN 13108-7, Bitu
44、minous mixtures Material specifications Part 7: Porous Asphalt ISO 48, Rubber, vulcanized or thermoplastic Determination of hardness (hardness between 10 IRHD and 100 IRHD) 3 Apparatus 3.1 Moulding of test cubes of mastic asphalt 3.1.1 Cubic mould: composite metal mould with inside edges (70,7 0,5)
45、mm to mould the test cube (see Figure 1). 3.1.2 Oven capable of maintaining temperature of (250 10) C. 3.1.3 Hardwood tamper with a quadratic cross section, edge length about 30 mm. 3.1.4 Spatula about 30 mm wide. 3.1.5 Mixing bowl with spoon. 3.1.6 Thermometer capable to measure 300 C accurate to 2
46、 C. 3.1.7 Thermometer capable to measure 40 C accurate to 1 C. BS EN 12697-20:2012EN 12697-20:2012 (E) 8 3.1.8 Release agent (e.g. glycerine or waxed paper). 3.1.9 Adjustable mould for the test cube (see Figure 6). Dimensions in millimetres front view top view Figure 1 Example of a mould for the pre
47、paration of test cubes 3.2 Indentation test apparatus 3.2.1 Loading apparatus 3.2.1.1 Description Indentation test apparatus (see Figure 2) fitted with an indentor pin and a displacement transducer, suitable for one or two measuring points. Instead of the transducer, a dial gauge may also be used. T
48、he water bath, as specified in 3.2.2, shall be connected to the indentation test apparatus by means of a secure and watertight connection running from the bed plate, as specified in 3.2.3, through the bath to the base plate of the apparatus. The measuring pin of the displacement transducer shall not be located more than 50 mm from the axis of the guide rod. 3.2.1.2 Loading weights The indentation test apparatus shall be set up in such a way that first the preliminary force of (25 1) N then the main force of a furthe
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