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1、BRITISH STANDARD BS 5385-2: 1991 Incorporating Amendment No. 1 Wall and floor tiling Part 2: Code of practice for the design and installation of external ceramic wall tiling and mosaics (including terra cotta and faience tiles) ICS 91.060.10; 91.060.30 Licensed Copy: sheffieldun sheffieldun, na, Mon
2、 Dec 04 16:17:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5385-2:1991 This British Standard, having been prepared under the direction of the Elements and Components (of Diverse Materials) for Buildings Standards Policy Committee, was published under the authority of the Standards Board and come
3、s into effect on 31 January 1992 BSI 03-2001 First published as CP 212-2, June 1966 Second edition, as BS 5385-2, February 1978 Third edition, February 1978 Fourth edition January l992 The following BSI references relate to the work on this standard: Committee reference ECB 16 Draft for comment 90/1
4、1318 DC ISBN 0 580 20236 4 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Elements and Components (of Diverse Materials) for Buildings Standards Policy Committee (ECB/-) to Technical Committee ECB/16, upon which the following bodies wer
5、e represented: British Adhesives and Sealants Association British Ceramic Research Ltd. British Ceramic Tile Council Building Employers Confederation Chartered Institute of Building Concrete Society Contract Flooring Association Department of the Environment (Building Research Establishment) Institu
6、te of Clerks of Works of Great Britain Inc. Mortar Producers Association Limited National Federation of Clay Industries Ltd. National Federation of Terrazzo-Mosaic Specialists National Master Tile Fixers Association National Tile, Faience and Mosaic Fixers Society Royal Institute of British Architec
7、ts Terra Cotta Association 1937 Amendments issued since publication Amd. No.DateComments 10822March 2001Amends 19.1 paragraph 2. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 16:17:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5385-2:1991 BSI 03-2001i Contents Page Committees responsible
8、Inside front cover Forewordiv Section 1. General 1Scope1 2Definitions1 3Exchange of information and time schedules1 3.1Exchange of information1 3.2Provision of utilities, facilities and materials1 3.3Time schedules1 Section 2. Materials 4Transport and storage3 5Ceramic tiles3 6Mosaics3 7Architectura
9、l terra cotta and architectural faience tiles3 8Cement3 9Sand3 9.1General3 9.2Sand for cement : sand rendering and mortar beds3 9.3Sand for grouting3 10Water4 11Adhesives4 11.1Cementitious adhesives (hydraulically-hardened mortars)4 11.2Organic adhesives4 11.3Admixtures to adhesives4 12Bonding agent
10、s4 13Sealants and back-up materials for movement joints4 13.1Sealants4 13.2Back-up materials4 14Grouts4 14.1General4 14.2Types of grout4 15Reinforcement for cement : sand rendering6 Section 3. Design 16General7 16.1Initial considerations7 16.2Appearance and effect7 16.3Exposure conditions and protec
11、tion7 16.4Suitability of tiles or mosaics8 16.5Cleaning and maintenance8 17Backgrounds8 17.1General8 17.2Soluble salts in backgrounds8 18Preparation of backgrounds11 18.1General11 18.2Treatment of backgrounds to receive cement : sand rendering11 18.3Treatment of backgrounds to receive tiles by direc
12、t bedding13 19Cement : sand rendering13 19.1General13 Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 16:17:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5385-2:1991 ii BSI 03-2001 Page 19.2Rendering through anchored reinforcement14 19.3Mix for rendering to various backgrounds15 19.4Applic
13、ation and trueness of rendering15 20Movement joints16 20.1General16 20.2Location16 20.3Disposition and forming16 20.4Back-up materials16 20.5Sealants17 Section 4. Application of tiles: methods and materials 21General20 21.1Workmanship20 21.2Bedding methods20 21.3Compatibility of backgrounds and tile
14、 beds20 21.4Setting out20 21.5Preparation of the tiles20 21.6Tolerances for finished tile surfaces20 21.7Tile joint treatment20 21.8Movement joints20 21.9Mixing of tile bed materials20 22Bedding in adhesives20 22.1General20 22.2Backgrounds21 22.3Inspection and preparation of tiles21 22.4Application
15、of adhesive and tiles21 23Tile joint treatment21 23.1General21 23.2Grouting procedure for joints up to 3 mm wide21 23.3Wide joint filling22 23.4Application of coloured grout22 Section 5. Application of mosaics: methods and materials 24General23 24.1Preliminary considerations23 24.2Workmanship23 24.3
16、Tolerance for finished mosaic surfaces23 24.4Mosaic beds23 25Setting out23 26Preparation of mosaics23 27Bedding methods for mosaics23 27.1Bedding in adhesives23 27.2Bedding in cement : sand mortar23 28Application of mosaics24 28.1Pregrouting24 28.2Sequence and method of fixing24 29Grouting of mosaic
17、s24 30Glass mosaics24 Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 16:17:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5385-2:1991 BSI 03-2001iii Page Section 6. Cleaning and maintenance 31Cleaning25 31.1General25 31.2Glazed tiles25 31.3Unglazed tiles25 32Maintenance25 Figure 1 Typical
18、movement joint details in external wall tiling18 Figure 2 Position of movement joints in concrete frame construction at abutment of brick/block infill19 Table 1 Sand for grouts for joints less than 6 mm wide4 Table 2 Flexible sealants: summary of properties5 Table 3 Backgrounds: summary of data and
19、suitable tile beds9 Publication(s) referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 16:17:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5385-2:1991 iv BSI 03-2001 Foreword This code of practice has been prepared under the direction of the Elements and Components
20、 (of Diverse Materials) for Buildings Standards Policy Committee. It is a revision of the 1978 edition, which is withdrawn. The code now recommends that only adhesives should be used for bedding external tiling, although cement : sand mortar remains as an alternative for bedding mosaics, architectur
21、al terra cotta and architectural faience tiles. Illustrations of movement joints have been added, the tables for sealants and backgrounds have been revised and a cleaning and maintenance section has been added. Throughout this code, references to tiles and tiling are intended to apply equally to arc
22、hitectural terra cotta, to architectural faience and to mosaics and mosaics work except where the requirements for mosaics are different as in section 5. The other parts of BS 5385 are as follows: Part 1: Code of practice for the design and installation of internal ceramic wall tiling and mosaics in
23、 normal conditions; Part 3: Code of practice for the design and installation of ceramic floor tiles and mosaics; Part 4: Code of practice for ceramic tiling and mosaics in specific conditions; Part 5: Code of practice for the design and installation of terrazzo tile and slab, natural stone and compo
24、sition block floorings; Assessed capability. Users of this British Standard are advised to consider the desirability of assessment and registration of a suppliers quality systems against the appropriate part of BS 5750 by a third party certification body. Enquiries as to the availability of third pa
25、rty certification schemes will be forwarded by BSI to the Association of Certification Bodies. If a third party certification scheme does not already exist, users should consider approaching an appropriate body from the list of Association members. A British Standard does not purport to include all
26、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 comprises a front cover, an inside front cover, pages i to iv
27、, pages 1 to 26, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 16:17:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5385-2:1991 BSI 03-20011 Section 1. G
28、eneral 1 Scope This part of BS 5385 gives recommendations for the design and installation of external ceramic, architectural terra cotta and architectural faience wall tiling and mosaics in normal conditions. It deals with the types of backgrounds and their suitability to receive tiling using the fo
29、llowing fixing methods: a) bedding in cementitious or organic adhesives on an intermediate substrate or as a direct bedding method; b) bedding mosaics in cement : sand mortar on rendering or as a direct bedding method. NOTE 1Cement : sand mortar is seldom used as the bed for external wall tiling but
30、, if required, see 23.3 of BS 5385-1:1990. NOTE 2The titles of the publications referred to in this standard are listed on the inside back cover. 2 Definitions For the purposes of this part of BS 5385 the definitions given in BS 6100 and BS 6431-1 apply. 3 Exchange of information and time schedules
31、NOTEThis clause deals with the exchange of information for the whole wall, including tiles, tile bed, background and intermediate substrate (if any). 3.1 Exchange of information Working drawings and specifications should be prepared in sufficient detail to afford proper guidance in the design and ex
32、ecution of the work. At the tendering stage the following information should be provided. a) Site. Location and means of access. b) Building. Nature of building and particulars of corrosive or other potentially damaging conditions to which the installation may be subjected in service (e.g. mechanica
33、l cleaning). c) Wall(s). Type and age of construction, location, type and accuracy of backgrounds and need for intermediate substrate. NOTEPermissible deviations from horizontal and perpendicular lines in building construction are usually greater than are appropriate for ceramic tiling or mosaic fin
34、ishes. d) Associated work. Elements embedded in or passing through the wall, skirtings and abutments, junctions with other adjacent finishes. e) Finishes. Type(s) of tiles and/or mosaics, bedding and jointing requirements and required surface plane. f) Contract. Particulars if the work is to be comp
35、leted in any specific order or in sections. g) Health and safety. Information on articles and substances for use during the work that are liable to be a health risk. h) Time schedule. A time schedule for the progress of the work. (See 3.3.) i) Testing. Details of any compliance testing required. 3.2
36、 Provision of utilities, facilities and materials To prevent misunderstanding, particularly at the tendering stage, and to avoid possible situations detrimental to installation, it should be made clear whether or not the following will be provided and by whom: a) adequate clean, dry, lockable storag
37、e space protected from frost if necessary; b) clean water supply adjacent to working areas; c) adequate artificial lighting if required, e.g. for tiling within a protected enclosure; d) safe means of access and places of work, to include, where required, suitable scaffolding and staging, which shoul
38、d comply with BS 5973 or BS 5974; NOTEAttention is also drawn to the requirements of the Building and Construction Regulations made under the Factories Act. e) unloading and hoisting facilities; f) electric power supply adjacent to working areas; g) protection of work during and after fixing; h) sup
39、plies of cement and sand in accordance with clauses 8 and 9. 3.3 Time schedules The time schedule for the whole building work should be planned in the initial stages before operations are begun and, where possible, in consultation with those who will become responsible for carrying out the work of e
40、ach of the trades concerned. In preparing the time schedule for the work, each operation should be considered in relation to others. Due consideration should be given to the most economical use of general plant and scaffolding by all trades, also to ensure that the various trades do not interfere un
41、duly with each others work. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 16:17:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5385-2:1991 2 BSI 03-2001 For economic and efficient application of external tiling and mosaics, the work should begin at the highest point of the building. Also,
42、 in certain forms of a multistorey construction, some deflection of the building can occur at lower levels as the building increases in height and loading consequently increases. It is important, therefore, that application of tile or mosaic cladding should not commence until the building has been c
43、onstructed to its full height. At least 6 weeks should be allowed in the time schedule for the drying out and initial shrinkage of the structural or non-structural fabric before the application of an intermediate substrate, e.g. rendering. If rendering is subsequently to be applied it should be left
44、 for at least a further 2 weeks. The schedule should allow also for all cutting of holes and chases and/or other work involving the use of percussion tools in or on the walls to receive a bedded finish, and adjacent walls, to be completed before a substrate is applied. All the time allowances mentio
45、ned are equally relevant where a substrate is to be omitted and the tile or mosaic finish bedded directly to the structural background. The time schedule should also provide for the completion of all necessary subsidiary work before the fixing of tiles or mosaics begins. The schedule should include
46、times for commencement and completion of tiling or mosaic work in the different parts of the building, allowing sufficient time intervals between the operation of the bedding, grouting and final cleaning down. The time schedule should include a provision for adjustment to allow for suspension of ope
47、ration due to frost or other unfavourable weather conditions that may jeopardize the safety of workers and/or the success of the installation. Alternatively, consideration should be given to the possibility of providing a protective enclosure, e.g. cocooning, to enable work to continue during unfavo
48、urable conditions. In addition heating may be necessary. Licensed Copy: sheffieldun sheffieldun, na, Mon Dec 04 16:17:54 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 5385-2:1991 BSI 03-20013 Section 2. Materials 4 Transport and storage The delivery of materials should be so arranged as to minimize
49、handling. Adequate precautions should be taken to guard against the possibility of damage. Products should be stored in a clean, dry, frost-free (if necessary) lockable storage to avoid excessive handling, theft and damage. 5 Ceramic tiles Ceramic tiles should have a water absorption of not more than 3 % and should be either extruded tiles type AI as specified in BS 6431-2 or dust-pressed tiles type BI as specified in BS 6431-6. Ceramic tiles that are to be fixed in locations liable to frost should not be damaged when tested for frost resistance by the
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