BS EN 1169-1999 Precast concrete products - General rules for factory production control of glass-fibre reinforced cement《预制混凝土制品 玻璃纤维增强水泥的工厂生产控制的一般规则》.pdf

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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1169:1999 The Europ

2、ean Standard EN 1169:1999 has the status of a British Standard ICS 91.100.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Precast concrete products General rules for factory production control of glass-fibre reinforced cementThis British Standard, having been prepared under

3、 the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 November 1999 BSI 11-1999 ISBN 0 580 32052 9 BS EN 1169:1999 Amendments issued since publication Amd. No. Date Comments National forewor

4、d This British Standard is the English language version of EN 1169:1999. The UK participation in its preparation was entrusted to Technical Committee B/524, Precast concrete products, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee

5、 any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-reference

6、s The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue

7、. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprise

8、s a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued.CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Ce

9、ntral Secretariat: rue de Stassart 36, B-1050 Brussels 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1169:1999 E EUROPEAN STANDARD EN 1169 NORME EUROPE ENNE EUROPA ISCHE NORM October 1999 ICS 91.100.30 Descriptors: English v

10、ersion Precast concrete products General rules for factory production control of glass-fibre reinforced cement Produits pre fabrique se nb e ton Re gles ge ne rales de contro le de production des composites ciment-verre Vorgefertigte Betonerzeugnisse Allgemeine Regeln fu r die werkseigene Produktion

11、skontrolle von Glasfaserbeton This European Standard was approved by CEN on 4 December 1998. 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

12、 lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat 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 r

13、esponsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg,

14、 Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 1169:1999 BSI 11-1999 Foreword This European Standard has been prepared by Technical Committee CEN/TC 229, Precast concrete products, the Secretariat of which is held by AFNOR. This European Standard shall be giv

15、en the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2000, and conflicting national standards shall be withdrawn at the latest by April 2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations

16、of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword 2 1 Sco

17、pe 3 2 Normative references 3 3 Definitions and abbreviation 3 3.1 Definitions 3 3.1.1 additive 3 3.1.2 admixture 3 3.1.3 AR glass-fibre (alkali-resistant) 3 3.1.4 E glass-fibre (electrical) 3 3.1.5 basic strand 3 3.1.6 glass-fibre reinforced cement 3 3.1.7 matrix 3 3.1.8 spray process 3 3.1.9 premi

18、x process 4 3.1.10 Quality Assurance Manual (QAM) 4 3.1.11 Quality Assurance Plan (QAP) 4 3.1.12 control plan 4 3.2 Abbreviation 4 4 Control of raw materials 4 4.1 General 4 4.2 Reception controls 4 4.3 Storage of raw materials 4 5 control of the mixing process 5 6 Controls of hardened and fresh GRC

19、 5 Annex A (normative) Guidelines for establishment of the manufacture control plan 7 Annex B (informative) Bibliography 7Page 3 EN 1169:1999 BSI 11-1999 1 Scope This European Standard is applicable to glass-fibre reinforced cement products manufactured in factories. It defines the general rules for

20、 production control of GRC material. It constitutes the common “production” part of the control plan, for which guidelines are given in annex A. It does not specify: the conformity control procedure for the finished products, for which reference should be made to the specification of European produc

21、ts standards or, if none exist, to the technical requirements defined and agreed between the manufacturer and his customer; the means and methods to be used to control the whole production process (moulds, curing, storage, etc.). 2 Normative references This European Standard incorporates by dated or

22、 undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only

23、when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. prEN 197-1, Cement Part 1: Composition, specifications and conformity criteria for common cements. EN 450, Fly ash for concrete Definitions, requirements and quality co

24、ntrol. EN 1170-1, Precast concrete products Test method for glass-fibre reinforced cement Part 1: Measuring the consistency of the matrix “Slump test” method. EN 1170-2, Precast concrete products Test method for glass-fibre reinforced cement Part 2: Measuring the fibre content in fresh GRC, “Wash ou

25、t test”. EN 1170-3, Precast concrete products Test method for glass-fibre reinforced cement Part 3: Measuring the fibre content of sprayed GRC. EN 1170-4, Precast concrete products Test method for glass-fibre reinforced cement Part 4: Measuring bending strength “Simplified bending test” method. EN 1

26、170-5, Precast concrete products Test method for glass-fibre reinforced cement Part 5: Measuring bending strength, “Complete bending test” method. EN 1170-6, Precast concrete products Test method for glass-fibre reinforced cement Part 6: Determination of the absorption of water by immersion and dete

27、rmination of the dry density. EN 1170-7, Precast concrete products Test method for glass-fibre reinforced cement Part 7: Measurement of extremes of dimensional variations due to moisture content. ENV 1170-8, Test method for glass-fibre reinforced cement Part 8: Cyclic weathering type test. EN 45001,

28、 General criteria for the operation of testing laboratories. 3 Definitions and abbreviation 3.1 Definitions For the purposes of this standard, the following definitions apply. 3.1.1 additive product that may be added to the matrix composition to improve some properties. It can be reactive (e.g. sili

29、ca fumes) or inert, mineral or organic (e.g. polymer dispersions) 3.1.2 admixture product added in quantity less than 5% of the mass of cement, before or during mixing and giving expected modifications to the initial properties (e.g. plasticizer, air entraining agents) 3.1.3 AR glass-fibre (alkali-r

30、esistant) glass-fibre resistant to the alkaline environment of matrices made from hydraulic binder. This resistance is due particularly to a specific composition of glass 3.1.4 E glass-fibre (electrical) glass-fibre usually used in the composites with organic binder. Due to the composition of glass,

31、 this type of fibre is degraded in alkaline environment 3.1.5 basic strand glass fibre obtained by stranding 100 to 200 filaments having 10mmt o3 0m m individual diameter 3.1.6 glass-fibre reinforced cement composite material consisting of a matrix of hydraulic binder (cement) reinforced with glass-

32、fibres, these materials being compatible 3.1.7 matrix part of glass-fibre reinforced cement comprising the mixture of sand, cement, water and if necessary additives and admixtures 3.1.8 spray process process whereby continuous glass-fibre is cut into set lengths and sprayed together with the matrix.

33、 The process is designed to give a glass-fibre reinforced cement in which the fibres are oriented parallel to the mould surfacePage 4 EN 1169:1999 BSI 11-1999 3.1.9 premix process process whereby chopped strands of glass-fibres are blended with the matrix to make a glass-fibre reinforced cement read

34、y for processing. The process may be: “casting and vibration”, wet or dry spraying, injection, extrusion, etc. 3.1.10 Quality Assurance Manual (QAM) document describing the general measures taken by a manufacturer in the field of quality assurance. This document is the non-confidential contractual p

35、art of the Quality Manual, if this exists 3.1.11 Quality Assurance Plan (QAP) document describing the general measures taken by a manufacturer to conform with the requirements relating to a given production. QAM and QAP may be blended 3.1.12 control plan document describing the specific measures use

36、d to effect the control of a product 3.2 Abbreviation GRC: glass-fibre reinforced cement 4 Control of raw materials 4.1 General The raw materials shall conform to the requirements of the European Standards or if none exist to national standards valid in the place of use. In particular Portland cemen

37、ts shall comply with prEN 197-1 and fly ashes with EN 450. If no standard exists, raw materials shall be covered in technical specifications describing the nature of the requirements for GRC and agreed by the supplier and the manufacturer. The use of E glass-fibres is not recommended with Portland c

38、ement, unless in a modified cement matrix of which its performance and their change with time have been identified in accordance with ENV 1170-8. NOTE 1 To estimate the resistance of glass-fibres to alkalis of Portland cement, it is recommended to refer to the GRCA publications no. S 0104/0184 and n

39、o. S 0105/0286. They define a test “Strand In Cement S.I.C. Test” and give requirements for glass-fibres to be used in matrices with hydraulic binder. NOTE 2 The glass-fibres are used in the following forms: chopped strands, continuous rovings/fibres (stratifils), nets, and mats. 4.2 Reception contr

40、ols Each delivery batch shall be identified by the supplier and be accompanied by a delivery document which specifies particularly: for sands: the grain size analysis within the specified limits, the cleanness, the water content and the chemical analysis; for polymers: the family of polymers, the dr

41、y extract and the limit of use date; for cements: the type of cement and the strength class; for glass-fibres: the quality of the glass (e.g. AR), the diameter of filaments, definition of the strand and loss on ignition. It is recommended that the GRC producer takes a sample for retention from each

42、delivery batch in accordance with Table 1. NOTE If the case arises, the reception controls (all or a part) could be carried out by the producer. Table 1 Retention samples to be taken from each delivery batch Materials Approximate mass Duration of retention kg months Glass-fibres 0,5 6 Cement 5 1 San

43、ds 5 1 Additions Polymers 1 6 Metakaolin, silica fumes and other fillers 16 Admixtures 0,5 6 Water 4.3 Storage of raw materials All raw materials shall be stored in a sheltered place, in such a way they do not mix with others and are protected against deterioration or contamination. For certain mate

44、rials, as indicated in the suppliers written instructions, protection from frost is necessary to preserve the qualities of the products. The rotation of stocks shall be ensured so that oldest stock is always used first.Page 5 EN 1169:1999 BSI 11-1999 Table 2 Summary of control tests on fresh GRC: pr

45、emix process Test Indicative frequency Requirement Corrective action if test result is outside the limit values Consistency of matrix in accordance with EN 1170-1 Initially to set up a matrix formula, then at least once a day per mixer Optimal value determined according to the production cycle. Valu

46、e of the acceptable variation range generally accepted: 1 circle, i.e. 20 mm Modify the formula (e.g. rectify water content) Fibre content of fresh GRC in accordance with EN 1170-2 Once a week for each set of weighing equipment Deviation#1 % Adjust the process Table 3 Summary of control tests on fre

47、sh GRC: spray process Test Indicative frequency Requirement Corrective action if test result is outside the limit values Consistency of matrix in accordance with EN 1170-1 Initially to set up a matrix formula, then at least once a day per mixer Optimal value determined according to the production cy

48、cle. Value of the acceptable variation range generally accepted: 1 circle, i.e. 20 mm Modify the formula (e.g. rectify water content) Direction verification of rates in accordance with EN 1170-3 For each pump: at least once a day and after each incident in the production that could question the conf

49、ormity of the rate of fibres. The frequency is reduced to two controls per week when the fibre content is regularly (period longer than one month) in the acceptable range without change the adjustment of the air pressure Optimal value determined according to the production cycle. Value of the acceptable variation range generally accepted: 0,2 % Adjust the process Fibre content of fresh GRC in accordance with EN 1170-2 Once a week per spray operator Deviation#1,5 % Adjust the proces

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