1、May 2015 Translation by DIN-Sprachendienst.English price group 9No 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 93.
2、080.20!%BZ“2315590www.din.deDDIN EN 12697-7Bituminous mixtures Test methods for hot mix asphalt Part 7: Determination of bulk density of bituminous specimens bygamma rays;English version EN 12697-7:2014,English translation of DIN EN 12697-7:2015-05Asphalt Prfverfahren fr Heiasphalt Teil 7: Bestimmun
3、g der Raumdichte von Asphalt-Probekrpern mit Gamma-Strahlen;Englische Fassung EN 12697-7:2014,Englische bersetzung von DIN EN 12697-7:2015-05Mlanges bitumineux Mthodes dessai pour mlange hydrocarbon chaud Partie 7: Dtermination de la masse volumique apparente des prouvettes bitumineusespar les rayon
4、s gamma;Version anglaise EN 12697-7:2014,Traduction anglaise de DIN EN 12697-7:2015-05SupersedesDIN EN 12697-7:2002-12www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Document comprises 15 pages 04.15 DIN EN 12697-7:2015-05 2 A comma is used as the decimal
5、 marker. National foreword This document (EN 12697-7:2014) has been prepared by Technical Committee CEN/TC 227 “Road materials” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the DIN-Normenausschuss Bauwesen (DIN Standards Committee Building and Civil Engine
6、ering), Working Committee NA 005-10-10 AA Asphalt. Amendments This standard differs from DIN EN 12697-7:2002-12 as follows: a) the consistency of the calibration coefficient k has been changed from 0,001 to 0,005; b) Formulae (4) and (5) have been corrected. Previous editions DIN EN 12697-7: 2002-12
7、 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12697-7 May 2014 ICS 93.080.20 Supersedes EN 12697-7:2002English Version Bituminous mixtures - Test methods for hot mix asphalt - Part 7: Determination of bulk density of bituminous specimens by gamma rays Mlanges bitumineux - Mthodes dessai pour
8、 mlange hydrocarbon chaud - Partie 7: Dtermination de la masse volumique apparente des prouvettes bitumineuses par les rayons gamma Asphalt - Prfverfahren fr Heiasphalt - Teil 7: Bestimmung der Raumdichte von Asphalt-Probekrpern mit Gamma-Strahlen This European Standard was approved by CEN on 4 Apri
9、l 2014. 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 references concerning such national standards may be obtai
10、ned 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 member into its own language and notified to the CEN
11、-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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland,
12、 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 CEN-CENELEC Management Centre:
13、 Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12697-7:2014 EEN 12697-7:2014 (E) 2 Contents Page Foreword 3 Introduction .6 1 Scope 7 2 Normative references 7 3 Terms and definitions .7 4 Pr
14、inciple 8 5 Apparatus .9 6 Preparation of specimens .9 7 Procedure .9 7.1 Prior adjustments 9 7.2 Choice of beam diameter . 10 7.3 Measurement procedure 10 7.3.1 Measurement mode 10 7.3.2 Continuous measurements . 10 7.3.3 Localized or point measurements . 11 8 Expression of results . 11 9 Test repo
15、rt . 12 10 Precision 13 DIN EN 12697-7:2015-05 EN 12697-7:2014 (E) 3 Foreword This document (EN 12697-7:2014) 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
16、 by publication of an identical text or by endorsement, at the latest by November 2014, and conflicting national standards shall be withdrawn at the latest by November 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/
17、or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12697-7:2002. The following is a list of significant technical changes since the previous edition: changed the consistency of the calibration coefficient k from “0,001” by “0,005”; cor
18、rected Formulae (4) and (5). 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 methods for hot mix asphalt Part 2: Determination of particle size
19、 distribution 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: Bitumen recovery: Fractionating column EN 12697-5, Bituminous mixtures Test methods for hot mix asphalt
20、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 mixtures Test methods for hot mix asphalt Part 7: Determination of bulk density of bituminous specimens b
21、y 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 hot mix asphalt Part 10: Compactability EN 12697-11, Bituminous mixtures Test methods for hot mix asph
22、alt Part 11: Determination of the affinity between aggregates 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 m
23、easurement DIN EN 12697-7:2015-05 EN 12697-7:2014 (E) 4 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 segregation sensitivity EN 12697-16, Bituminous mixtures Te
24、st 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 asphalt Part 18: Binder drainage EN 12697-19, Bituminous mix
25、tures 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 (CY) EN 12697-21, Bituminous mixtures Test methods for hot mix asphalt Part 21: Indentation using plate
26、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 12697-24, Bituminous mixtures Test methods for hot
27、mix asphalt Part 24: 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
28、: 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 methods for hot mix asphalt Part 29: Determination of the dimensions of a bituminous specimen E
29、N 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 preparation by gyratory compactor EN 12697-32, Bituminous mixtures Test methods for hot mix asphalt P
30、art 32: Laboratory compaction of bituminous mixtures by a vibratory compactor EN 12697-33, Bituminous mixtures Test methods for hot mix asphalt Part 33: Specimen preparation slab compactor EN 12697-34, Bituminous mixtures Test methods for hot mix asphalt Part 34: Marshall test EN 12697-35, Bituminou
31、s 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 DIN EN 12697-7:2015-05 EN 12697-7:2014 (E) 5 EN 12697-37, Bituminous mixtures Test methods for hot
32、 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 for hot mix asphalt Part 39: Binder content by ign
33、ition 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 for hot mix asphalt Part 42: Amount of foreign
34、matter 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 EN 12697-45, Bituminous mixtures Test methods for hot m
35、ix asphalt Part 45: Saturation ageing tensile stiffness (SATS) conditioning test EN 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: Det
36、ermination of the ash content of natural asphalts prEN 12697-48, Bituminous mixtures Test methods for hot mix asphalt Part 48: Interlayer Bonding (Torque bond test - TBT, Shear bond test - SBT, Tensile Adhesion Test (TAT)1)prEN 12697-49, Bituminous mixtures Test methods for hot mix asphalt Part 49:
37、Determination of friction after polishing1)prCEN/TS 12697-50, Bituminous mixtures Test methods 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 implemen
38、t this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Sl
39、ovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. 1) In preparation DIN EN 12697-7:2015-05 EN 12697-7:2014 (E) 6 Introduction Bulk density measurement in the laboratory using gamma rays is a method which does not affect the properties of the material. It can be included in
40、 a series of tests carried out on a given sample. It allows the plotting of a density chart or gradient. DINEN 12697-7:2015-05EN 12697-7:2014(E)7 1 Scope This European Standard specifies a method for measuring the bulk density of pavement mixtures using a transmission-type gamma radiation test bench
41、. The applicability of this European Standard is described in the product standards for bituminous mixtures. The safety regulations applicable to the use of gamma rays should be applied. This European Standard applies to cylindrical specimens or blocks, prepared in a laboratory or cut from a pavemen
42、t, the thickness and the mass absorption coefficient which is a function of the chemical composition are known. The thickness of the specimen body traversed by the radiation shall be between 30 mm and 300 mm. The method cannot be applied to materials containing slags, with variable metal content or
43、chemical composition which may affect the absorption of gamma rays. 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
44、, the latest edition of the referenced document (including any amendments) applies. EN 12697-6, Bituminous mixtures - Test methods for hot mix asphalt - Part 6: Determination of bulk density of bituminous specimens 3 Terms and definitions For the purposes of this document, the following terms and de
45、finitions apply. 3.1 precision closeness of agreement between independent test results obtained under stipulated conditions Note 1 to entry: Precision depends only on the distribution of random errors and does not relate to the true value or the specified value. Note 2 to entry: The measure of preci
46、sion is usually expressed in terms of imprecision and computed as a standard deviation of the test results. Less precision is indicated by a larger standard deviation. Note 3 to entry: “Independent test results” means results obtained in a manner not influenced by any previous result on the same or
47、similar test sample. Quantitative measures of precision depend critically on the stipulated conditions. Repeatability and reproducibility conditions are particular sets of extreme conditions. 3.2 repeatability precision under repeatability conditions 3.3 repeatability conditions conditions where ind
48、ependent tests results are obtained with the same method on identical test items in the same laboratory by the same operator using the same equipment within short intervals of time 3.4 reproducibility precision under reproducibility conditions DIN EN 12697-7:2015-05 EN 12697-7:2014 (E) 8 3.5 reproducibility conditions conditions whe
