1、August 2013 Translation by DIN-Sprachendienst.English price group 7No 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
2、93.080.20!%mj“2047471www.din.deDDIN EN 14227-4Hydraulically bound mixtures Specifications Part 4: Fly ash for hydraulically bound mixtures;English version EN 14227-4:2013,English translation of DIN EN 14227-4:2013-08Hydraulisch gebundene Gemische Anforderungen Teil 4: Flugasche fr hydraulisch gebund
3、ene Gemische;Englische Fassung EN 14227-4:2013,Englische bersetzung von DIN EN 14227-4:2013-08Mlanges traits aux liants hydrauliques Spcifications Partie 4: Cendre volante pour mlanges traits aux liants hydrauliques;Version anglaise EN 14227-4:2013,Traduction anglaise de DIN EN 14227-4:2013-08Supers
4、edesDIN EN 14227-4:2004-10www.beuth.deDocument comprises 9 pagesIn case of doubt, the German-language original shall be considered authoritative.07.13 DIN EN 14227-4:2013-08 2 A comma is used as the decimal marker. National foreword This document (EN 14227-4:2013) has been prepared by Technical Comm
5、ittee CEN/TC 227 “Road materials” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Working Committee NA 005-10-90 AA (SpA zu CEN/TC 154/SC 3,4 und CEN/TC 227/WG 4). Amendments T
6、his standard differs from DIN EN 14227-4:2004-10 as follows: a) the standard has been editorially revised; b) the following subclauses have been modified: 4.2.1 “Particle size” 4.3.1 “Particle size”. Previous editions DIN EN 14227-4: 2004-10 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14227
7、-4 May 2013 ICS 93.080.20 Supersedes EN 14227-4:2004English Version Specifications - Part 4: Fly ash for hydraulically bound mixtures Mlanges traits aux liants hydrauliques - Spcifications - Partie 4: Cendre volante pour mlanges traits aux liants hydrauliques Hydraulisch gebundene Gemische - Anforde
8、rungen - Teil 4: Flugasche fr hydraulisch gebundene Gemische This European Standard was approved by CEN on 1 March 2013. 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 withou
9、t 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, French, German). A version in any other la
10、nguage 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, Croatia, Cyprus, Czech Republic, Denm
11、ark, Estonia, Finland, Former Yugoslav Republic of Macedonia, 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
12、 FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14227-4:2013: EEN 14227-4:2013 (E) 2 Conte
13、nts Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Requirements .5 4.1 General 5 4.2 Requirements for siliceous fly ash 5 4.2.1 Particle size 5 4.2.2 Loss on ignition .5 4.2.3 Sulfuric anhydride .5 4.2.4 Free calcium oxide and soundness .6 4.2.5 Water content .6 4.2.
14、6 Pozzolanic activity of siliceous fly ash .6 4.3 Requirements for calcareous fly ash .6 4.3.1 Particle size 6 4.3.2 Soundness 6 4.3.3 Reactive calcium oxide .6 4.3.4 Water content .6 4.3.5 Hydraulic activity of calcareous fly ash 6 5 Production control .7 6 Marking and labelling 7 DIN EN 14227-4:20
15、13-08 EN 14227-4:2013 (E) 3 Foreword This document (EN 14227-4:2013) 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 b
16、y endorsement, at the latest by November 2013, and conflicting national standards shall be withdrawn at the latest by November 2013. 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
17、for identifying any or all such patent rights. This document supersedes EN 14227-4:2004. Compared with EN 14227-4:2004, the following changes have been made: Revision of Clause 4.2 “Requirements for siliceous fly ash“; Revision of Clause 4.3 “Requirements for calcareous fly ash“. This standard is on
18、e of a series of parts for EN 14227, Hydraulically bound mixtures Specifications: Part 1: Cement bound granular mixtures Part 2: Slag bound granular mixtures Part 3: Fly ash bound granular mixtures Part 4: Fly ash for hydraulically bound mixtures Part 5: Hydraulic road binder bound granular mixtures
19、 Part 10: Soil treated by cement Part 11: Soil treated by lime Part 12: Soil treated by slag Part 13: Soil treated by hydraulic road binder Part 14: Soil treated by fly ash According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to
20、 implement 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, Ro
21、mania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 14227-4:2013-08 EN 14227-4:2013 (E) 4 1 Scope This European Standard specifies siliceous and calcareous fly ash used in hydraulically bound mixtures for roads, airfields and other trafficked areas. This Euro
22、pean Standard applies to fly ash produced by the combustion of pulverised coal or lignite in energy generating plants. 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, onl
23、y the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 196-1, Methods of testing cement Part 1: Determination of strength EN 196-2, Methods of testing cement Part 2: Chemical analysis of cement EN 196-3, Methods of te
24、sting cement Part 3: Determination of setting times and soundness EN 196-7, Methods of testing cement Part 7: Methods of taking and preparing samples of cement EN 197-1, Cement Part 1: Composition, specifications and conformity criteria for common cements EN 450-1, Fly ash for concrete Part 1: Defin
25、ition, specifications and conformity criteria EN 451-1, Method of testing fly ash Part 1: Determination of free calcium oxide content EN 451-2, Method of testing fly ash Part 2: Determination of fineness by wet sieving EN 933-10, Tests for geometrical properties of aggregates Part 10: Assessment of
26、fines Grading of filler aggregates (air jet sieving) EN 13286-1, Unbound and hydraulically bound mixtures Part 1: Test methods for laboratory reference density and water content Introduction, general requirements and sampling 3 Terms and definitions For the purposes of this document, the following t
27、erms and definitions apply. 3.1 fly ash fine powder produced by the combustion of pulverised coal or lignite with or without co-combustion materials (as defined in EN 450-1) in energy generating plants and captured by mechanical or electrostatic precipitators 3.2 siliceous fly ash (alumino-silicate
28、fly ash) fly ash where the essential chemical components are silicates, aluminates and iron oxides, expressed as SiO2, Al2O3and Fe2O3and which has pozzolanic properties Note 1 to entry: It may be stored, supplied and used either in a wet or dry condition. DIN EN 14227-4:2013-08 EN 14227-4:2013 (E) 5
29、 3.3 calcareous fly ash (sulfo-calcitic fly ash) fly ash where the essential chemical components are silicates, aluminates, calcium oxide and sulfates, expressed as SiO2, Al2O3, CaO and SO3and which has hydraulic and pozzolanic properties Note 1 to entry: It is stored and supplied in a dry condition
30、. 3.4 pozzolanic material material which mixed with lime Ca(OH)2or CaO in the presence of water sets and hardens to form stable and durable compounds 3.5 hydraulic material material which sets and hardens in the presence of water, to form stable and durable compounds 3.6 dry fly ash fly ash with a v
31、ery low water content, see 4.2.5 and 4.3.4 Note 1 to entry: Normally supplied directly from dry storage. 4 Requirements 4.1 General Chemical characteristics shall be expressed as a percentage by mass of the dry product which is obtained by drying a laboratory sample in a well-ventilated oven at (110
32、 5) C to constant mass, and allowing to cool in a dry atmosphere. For dry fly ash, samples shall be taken and prepared in accordance with EN 196-7. For wet fly ash, samples shall be taken and prepared in accordance with EN 13286-1. 4.2 Requirements for siliceous fly ash 4.2.1 Particle size The finen
33、ess of fly ash shall be expressed as the mass proportion in percent of the ash retained when sieved on a 0,045 mm mesh sieve and shall not exceed 60 %. The sieving shall be carried out in accordance with EN 451-2 (wet sieving) or by air-jet sieving in accordance with EN 933-10. 4.2.2 Loss on ignitio
34、n The loss on ignition measured in accordance with EN 196-2, but using an ignition time of 1 h, or equivalent method, shall not exceed 15,0 % by mass. 4.2.3 Sulfuric anhydride The content of sulfuric anhydride, SO3shall be determined in accordance with EN 196-2 and shall not be greater than 4,0 % by
35、 mass. DIN EN 14227-4:2013-08 EN 14227-4:2013 (E) 6 4.2.4 Free calcium oxide and soundness If the free calcium oxide content, measured in accordance with EN 451-1, exceeds 1,5 % by mass, soundness shall be measured according to EN 196-3 and the expansion shall not exceed 10 mm with a 30:70 blend of
36、fly ash and cement. 4.2.5 Water content Dry siliceous fly ash shall contain not more than 1,0 % by mass of water. NOTE Siliceous fly ash can be stored, used and supplied either in a wet or a dry condition. 4.2.6 Pozzolanic activity of siliceous fly ash If required at the place of use, the pozzolanic
37、 activity shall be declared. This may be determined by the measurement of the compressive strength of a mixture of lime, the ash in question and standard aggregate. 4.3 Requirements for calcareous fly ash 4.3.1 Particle size The fineness of fly ash shall be expressed as the mass proportion in percen
38、t of the ash retained when sieved on a 0,090 mm mesh sieve and shall not exceed 30 %. The sieving shall be carried out in accordance with EN 451-2 (wet sieving) or by air-jet sieving in accordance with EN 933-10. 4.3.2 Soundness The expansion of calcareous fly ash shall be less than 10 mm, when test
39、ed in accordance with EN 196-3, using a mixture of 30 % by mass of ground fly ash and 70 % by mass of reference cement. 4.3.3 Reactive calcium oxide The total value of reactive CaO determined in accordance with EN 197-1 shall not be less than 5 % by mass. 4.3.4 Water content Dry calcareous fly ash s
40、hall contain not more than 1 % by mass of water. Calcareous fly ash shall be stored and supplied in a dry condition. 4.3.5 Hydraulic activity of calcareous fly ash If required at the place of use, the hydraulic activity shall be declared. This may be determined by the measurement of compressive stre
41、ngth development over time of mixtures of fly ash and a standard aggregate. The test procedure shall be in accordance with EN 196-1 except that the specimens should be stored in the mould at least 7 days.1)1) BAST: Suitability of mixtures for hydraulically bound base courses according to European St
42、andards for applications in Germany, Research Project No. FE 08.0181/2004/NGB, Bundesanstalt fr Straenbau (BAST), 2008. DIN EN 14227-4:2013-08 EN 14227-4:2013 (E) 7 5 Production control Fly ash shall be controlled according to Table 1. The manufacturer shall establish and maintain a production contr
43、ol manual, setting out the procedures by which the requirements for production control are satisfied. Table 1 Production control Column 1 2 3 4 Line Property Minimum test frequencyaClause reference Siliceous fly ash Calcareous fly ash 1 Particle size 2 per month or 1 per 5 000 t 4.2.1 4.3.1 2 Loss o
44、n ignition 2 per month or 1 per 5 000 t 4.2.2 Not applicable 3 Sulphuric anhydride 1 per month or 1 per 10 000 t 4.2.3 Not applicable 4 Free calcium oxide 1 per month or 1 per 10 000 t 4.2.4 Not applicable 5 Soundnessb1 per month or 1 per 10 000 t 4.2.4 4.3.2 6 Reactive calcium oxide 1 per month or
45、1 per 10 000 t Not applicable 4.3.3 7 Water content 2 per month or 1 per 5 000 t 4.2.5 4.3.4 8 Pozzolanic activityb2 per year or 1 per 50 000 t 4.2.6 Not applicable 9 Hydraulic activityb2 per year or 1 per 50 000 t Not applicable 4.3.5 aWhich ever is more frequent. bIf required. 6 Marking and labelling The delivery ticket shall contain at least the following: a) reference to this European Standard; b) type of fly ash; c) origin; d) manufacturer. DIN EN 14227-4:2013-08
