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    CEN TR 15123-2005 Design preparation and application of internal polymer plastering systems《聚合内饰系的设计 制备和施工》.pdf

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    CEN TR 15123-2005 Design preparation and application of internal polymer plastering systems《聚合内饰系的设计 制备和施工》.pdf

    1、PUBLISHED DOCUMENTPD CEN/TR 15123:2005Design, preparation and application of internal polymer plastering systemsICS 83.140.99; 91.180g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g5

    2、0g51g60g53g44g42g43g55g3g47g36g58PD CEN/TR 15123:2005This Published Document was published under the authority of the Standards Policy and Strategy Committee on 12 December 2005 BSI 12 December 2005ISBN 0 580 46697 3National forewordThis Published Document is the official English language version of

    3、 CEN/TR 15123:2005.The UK participation in its preparation was entrusted by Technical Committee B/544, Plastering, rendering, dry lining, to Subcommittee B/544/4, Plastering, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European comm

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

    5、cesThe 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 Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British St

    6、andards 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 Published Document does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cov

    7、er, an inside front cover, the CEN/TR title page, pages 2 to 13 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsTECHNICAL REPORTRAPPORT TECHNIQUETECHNISCHER BERICHTCEN/TR 15123Ju

    8、ne 2005ICS 83.140.99; 91.180English versionDesign, preparation and application of internal polymerplastering systemsPlanung, Zubereitung und Ausfhrung vonKunstharzinnenputzsystemenThis Technical Report was approved by CEN on 13 May 2005. It has been drawn up by the Technical Committee CEN/TC 125.CEN

    9、 members are the national standards bodies of 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

    10、United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES 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. CEN/TR 15123:20

    11、05: E2 Contents Page Foreword 3 1 Scope. 4 2 Terms and definitions 4 3 Materials and accessories . 4 4 Design - factors influencing the selection of polymer plastering systems 5 5 Characteristics of polymer plasters 6 6 Types and standards of plaster finish 11 7 Application 11 Bibliography 13 CEN/TR

    12、 15123:20053 Foreword This document (CEN/TR 15123:2005) has been prepared by Technical Committee CEN/TC 125 “Masonry“, the secretariat of which is held by BSI. This document has been initially prepared by the European section of International Union of Contractors of Plastering, Dry Lining, Stucco an

    13、d Related Activities (UIEP) at the request of the CEN Technical Sector Board (Resolution No.BTS1/56/1991). It has been revised by CEN/TC 125/JWG5 in conjunction with CEN/TC 241. The CEN technical report gives in different sections guidance for building details, design and materials considerations an

    14、d the application of polymer plasters. Relevant data are summarized in a series of tables. The recommendations are framed in logical sequence, namely materials and accessories; properties of backgrounds that influence the choice of suitable polymer plastering systems; guidance on preparation of surf

    15、aces to be plastered; choice of suitable polymer plasters; methods of application. It is essential that the design clauses are read in conjunction with the clauses on background and preparation. It is not the function of this document to assign responsibility for the design and application of any wo

    16、rk or actions mentioned within to any specific party. Such responsibility is a matter for other documentation associated with the work, e.g. the contract. It has been assumed in the drafting of this document that the application of its provisions is entrusted to appropriately qualified and experienc

    17、ed people, for whose guidance it has been prepared. This TR should be read in conjunction with EN 13914-2. The following similar Technical Reports are also available:- CEN/TR 15124:2005 Design, preparation and application of internal gypsum plastering systems CEN/TR 15125:2005 Design, preparation an

    18、d application of internal cement and/or lime plastering systems According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to announce this Technical Report: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,

    19、 Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. CEN/TR 15123:20054 1 Scope This document concerns the design, preparation and application of plaster

    20、 with polymer as the principal binder type, for internal plastering on all types of background used under normal conditions. It includes plastering onto both new and old backgrounds and the maintenance and repair of existing work. It concerns materials, backgrounds, preparation of the surface to be

    21、plastered, choice of suitable polymer plasters, methods of application and inspection and testing of plastering. Because of the many and varied materials and practices in Europe it is not possible for certain aspects of the standard to enter into sufficient detail to be fully usable to practitioners

    22、 in each country. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 polymer plaster plaster with polymer as the principle active binding component. Additives, fillers and aggregates may be added by the manufacturer. The plaster can be delivered

    23、 as a powder or ready-to-use 2.2 polymer plaster coat obtained by application of one layer of the product 2.3 polymer plastering system polymer plaster coat or sequence of coats to be applied to a background to achieve the required flatness and smoothness, including the possible use of a support and

    24、/or reinforcement and/or pretreatment 2.4 one coat polymer plaster polymer plaster applied in one coat which fulfils all the functions of an undercoat and a final coat 2.5 undercoat lower plaster coat(s) of a plastering system which needs a final coat 2.6 final coat last plaster coat of a multi-coat

    25、 plastering system 2.7 efflorescence formation of crystals on a surface during drying caused by the presence of soluble salts 3 Materials and accessories 3.1 General plasters 3.1.1 General Where applicable the polymer plaster should conform to prEN 14023. They should be classified in accordance with

    26、 EN 13501-1 for reaction to fire. CEN/TR 15123:20055 3.1.2 Polymer plasters (e.g. synthetic resin plaster, silicone plaster) These thin coat plasters harden mainly by physical drying which can sometimes limit the coat thickness. There are no general requirements regarding suction and key of the back

    27、ground and the adhesion to all kinds of dry backgrounds including paints is usually good. 3.1.3 Silicate plasters These plasters harden chemically and by physical drying. In very rapid drying conditions, precautions need to be taken to retain sufficient moisture to allow an adequate hardening of the

    28、 plaster. 3.2 Water The water should be of a quality such that it does not adversely affect the plaster. Water fit for drinking is suitable for mixes for plastering NOTE Attention is drawn to the requirements of EN 1008 in cases where water supplies may be of doubtful quality. 3.3 Reinforcement and

    29、beads Reinforcement and beads of whatever type, should conform to EN 13658-1 Metal lath and beads Definitions requirements and test methods Part 1: internal plastering. 3.4 Fixings Fixings for beads such as nails, screws, staples and steel wire should be made of compatible material and should confor

    30、m to EN 10223-3, EN 10230-1, EN 10244-1 or EN 10244-2. 4 Design - factors influencing the selection of polymer plastering systems 4.1 Functions and properties that may be required The function and properties achievable are determined by the choice of plaster type. A plastering system will need to fu

    31、lfil some of the following functions or properties: to even out any small unevenness in the background and provide a flat surface (see Table 1); to provide a decorative finish or a background for such a finish; to be vapour permeable; to have enhanced strength; to have enhanced resistance to abrasio

    32、n. Special plasters can provide enhanced properties for the following aspects: to improve the acoustic properties of a building element (see 5.4); 4.2 Factors influencing the choice of polymer plasters The designer should consider all functional and aesthetic aspects of the building. CEN/TR 15123:20

    33、056 The choice of polymer plaster(s) or plaster system is determined principally by: a) type of building (private houses, buildings); purpose of building (flat, school, hospital, office); uses (for example: wet room); b) the characteristics of the background; c) the ambient and operating conditions;

    34、 d) the traditional usage in any particular area; e) the type of finish required. 4.3 Background Consideration should be given to the compatibility between polymer plasters and the background. To achieve this compatibility, the following items should be considered: a) The background should provide a

    35、dequate support, strength and rigidity for the adhesion of the plaster. b) Masonry should conform to the requirements of ENV 1996-2. c) Boards, slabs and polystyrene should be fixed securely and should only be plastered when they are dry and dimensionally stable. d) It is important to avoid: 1) move

    36、ment of the background, including structural, moisture and thermal movements; 2) defects in the background, e.g. weakness, contamination. 3) efflorescence Such compatibility is necessary to avoid bond failure between successive coats or between the first plaster coat and the background. If any of th

    37、ese inadequate characteristics of the background exist, then other means of providing support and/or additional adhesion should be used. If it is necessary to plaster over an existing substrate, ensure that it will have sufficient bond strength to support and provide adhesion for the new plaster. Wh

    38、ere a plaster coat is applied to cement or cement lime background, it is important that the entire substrate is mature, clean and dry, otherwise difficulty with decoration due to the migration of alkalis may be experienced and in extreme cases complete de-bonding of the plaster coat can occur. 5 Cha

    39、racteristics of polymer plasters 5.1 General Polymer plasters may be decorated with most proprietary finishes when dry. Polymer plaster can be used in most areas and on most substrates including painted surfaces with or without pre-treatment. Each coat should be allowed to harden and dry before appl

    40、ying the subsequent coat. CEN/TR 15123:20057 Polymer plaster, when hardened and dry, is amongst the least troublesome of plaster surfaces in relation to decorative finish. 5.2 Fire properties 5.2.1 Reaction to fire See 3.1. 5.2.2 Fire resistance Resistance to fire is a property of a system (backgrou

    41、nd and plastering) and not of the product itself. When relevant, the fire resistance of a system including polymer plastering should be tested and classified in accordance with EN 13501-2. The manufacturer should declare performance on fire: integrity (E), resistance (R). 5.3 Thermal properties Norm

    42、al plasters do not make a significant contribution to thermal insulation. However, they do provide an effective way of sealing porous surfaces and voids. 5.4 Acoustic properties Even if standard polymer plasters do not contribute specifically to sound absorption, a polymer plastering system contribu

    43、tes to sound absorption due to its flexibility (minor critic frequency) and continuity by filling voids. If enhanced sound absorption properties are required, then special acoustic plasters should be used. Sound-absorbent finishes may affect sound transmission indirectly to some extent by reducing t

    44、he level of reverberant noise in either the source room or receiving room. 5.5 Resistance to cracking When the background has been erected in accordance with the relevant standards and the polymer plaster applied in accordance with this document and the recommendations of the manufacturer, then the

    45、polymer plaster will perform satisfactorily. The maximum coat thickness recommended by the manufacturer should not be exceeded. 5.6 Water resistance In wet areas polymer plasters with enhanced water resistance should be used. 5.7 Durability The durability of polymer plaster can be affected by the fo

    46、llowing: Lack of adhesion to the background and between coats e.g. too low or too high temperatures. Alkali migration from the background. Contamination from the background e.g. oil, salts. CEN/TR 15123:20058 Dust on the background. Incorrect usage. Persistent high humidity and dampness. Movement in

    47、 the structure. 5.8 Surface requirements 5.8.1 Flatness The flatness of the plastered finish will depend upon the accuracy to which the background has been constructed and the thickness of the plaster specified. Backgrounds which are built within the tolerances specified in ENV 1996-2 may still not

    48、be able to be plastered plumb or to line unless sufficient plaster thickness is specified. Thinner applications of plaster will only overcome minor irregularities or small deviations from line of the background. In general, no tolerance can be specified for very thin plaster coats since this will cl

    49、osely follow the contour of the background. Table 1 gives recommendations for classes of flatness of the plastered finish. NOTE 1 Care should be taken that the thicknesses applied should not exceed the manufacturers recommendations. NOTE 2 Under certain conditions where the plasterwork is subject to shallow angle lighting e.g. in long corridors with end lighting, although within this deviation limit, plasterwork can still reveal minor inherent surface irregularities. CEN/TR 15123:20059 Table 1 Classes of flatness Class Standard of finish required


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