1、BRITISH STANDARDBS EN 480-6:2005Admixtures for concrete, mortar and grout Test methods Part 6: Infrared analysisThe European Standard EN 480-6:2005 has the status of a British StandardICS 91.100.10; 91.100.30g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50
2、g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 480-6:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 December 2005 BSI 30 December 2005ISBN 0 580 47267 1National forewo
3、rdThis British Standard is the official English language version of EN 480-6:2005. It supersedes BS EN 480-6:1997 which is withdrawn.The UK participation in its preparation was entrusted by Technical Committee B/517, Concrete, to Subcommittee B/517/3, Admixtures, which has the responsibility to: A l
4、ist of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Stan
5、dards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard
6、 does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European devel
7、opments and promulgate them in the UK.Summary of pagesThis document comprises a front cover, an inside front cover, the EN title page, pages 2 to 5 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd.
8、 No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 480-6September 2005ICS 91.100.10; 91.100.30 Supersedes EN 480-6:1996 English VersionAdmixtures for concrete, mortar and grout - Test methods - Part6: Infrared analysisAdjuvants pour bton, mortier et coulis - Mthodes dessai -Partie 6
9、: Analyse infrarougeZusatzmittel fr Beton, Mrtel und Einpressmrtel -Prfverfahren - Teil 6: Infrarot-UntersuchungThis European Standard was approved by CEN on 28 July 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
10、Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, Frenc
11、h, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic,
12、 Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEURO
13、PISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 480-6:2005: EEN 480-6:2005 (E) 2 Contents Page Foreword 3 1 Scope .4 2 Normative references .4 3 Pr
14、inciple.4 4 Apparatus 4 5 Procedure 4 5.1 Preparation of the dry material 4 5.2 Infrared spectrophotometry .4 6 Results.5 7 Test report .5 EN 480-6:2005 (E) 3 Foreword This European Standard (EN 480-6:2005) has been prepared by Technical Committee CEN/TC 104 “Concrete and related products”, the secr
15、etariat 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 endorsement, at the latest by March 2006, and conflicting national standards shall be withdrawn at the latest by March 2006. It has been drafted
16、by Subcommittee 3 (SC 3) of TC 104 “Admixtures for concrete, mortar and grout“. This document is part of the series EN 480 “Admixtures for concrete, mortar and grout Test methods“ which comprises the following Part 1 Reference concrete and reference mortar for testing Part 2 Determination of setting
17、 time Part 4 Determination of bleeding of concrete Part 5 Determination of capillary absorption Part 6 Infrared analysis Part 8 Determination of the conventional dry material content Part 10 Determination of water soluble chloride content Part 11 Determination of air void characteristics in hardened
18、 concrete Part 12 Determination of the alkali content of admixtures Part 13 Reference masonry mortar for testing mortar admixtures Part 14 Admixtures for concrete, mortar and grout - Test methods - Part 14: Measurement of corrosion susceptibility of reinforcing steel in concrete - Potentiostatic ele
19、ctro-chemical test method 1)This document is applicable together with the other standards of the EN 480 series. This document supersedes EN 480-6:1996. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this Europ
20、ean Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 1) This part i
21、s under preparation EN 480-6:2005 (E) 4 1 Scope This document describes a method for identifying an admixture by infrared analysis (IR). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited appl
22、ies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 480-8:, Admixtures for concrete, mortar and grout - Test methods - Part 8: Determination of the conventional dry material content. 3 Principle The IR analysis is performed on dry materia
23、l from an admixture dried at (105 3) C, unless a different temperature is stated by the manufacturer. The residue from the determination of the conventional dry material content according to EN 480-8 may be used. 4 Apparatus 4.1 Infrared spectrometer with accessories (cells, pelleting press, NaCl wi
24、ndows, etc.); 4.2 Evaporating dish with a flat bottom ca. diameter 75 mm, depth 45 mm; 4.3 Desiccator; 4.4 Oven with forced ventilation2), thermostatically controlled at (105 3) C, fitted with a temperature indicating device. The required temperature range shall be maintained throughout the parts of
25、 the oven used for this test; 4.5 Balance with an accuracy of 0,5 g. 5 Procedure 5.1 Preparation of the dry material The method given in EN 480-8 shall be used3). 5.2 Infrared spectrophotometry Depending upon the consistence of the dry extract obtained, the test shall be carried out either on a thin
26、 film spread on the NaCl window (or KBr or CsI window depending upon the equipment available) using a spatula, 2) Fan circulation is necessary to ensure uniform temperature throughout the oven. 3) Any water in the dry extract will affect the resulting IR spectrum. If this occurs, the period of dryin
27、g should be extended to remove all water but not to cause breakdown or evaporation of other constituents. EN 480-6:2005 (E) 5 or a KBr pellet. To make the pellet the dry residue shall be pulverised and mixed with potassium bromide (KBr). The mixture shall be pressed into a pellet. The quantity of dr
28、y extract in the mixture shall be about 1 % by mass and shall be adjusted so that a spectrum of good quality is obtained (e.g. from 0,25 % to 1,5 %). The spectrum shall be recorded between 4 000 cm-1and 600 cm-1(or if possible up to 250 cm-1).4)6 Results The sample subjected to the test shall be reg
29、arded as conforming or non-conforming to the reference sample on the basis of whether the spectra do or do not have similar characteristic peaks with corresponding relative absorptions5). 7 Test report The recorded spectra shall be identified by means of: name or code of the material with all inform
30、ation relating to its marking; date of the test, the name of the laboratory, the type of equipment, the name of the operator; origin of the sample; drying procedure; preparation of the samples, e.g. film or KBr pellet containing x %. 4) This procedure corresponds to the preparation of samples as gen
31、erally adopted until now. The development of new instruments may affect the method of preparing the sample. These new methods may be accepted if they ensure an accuracy similar to that of the method described above. 5) Evaluation of the characteristic of conformity requires good experience in infrar
32、ed spectrophotometry. BS EN 480-6:2005BSI389 Chiswick High RoadLondonW4 4ALBSI British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Cha
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