1、BS ISO 14448:2016Low modulus adhesives forexterior tile finishingBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 14448:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 14448:2016.The UK participation in its preparatio
2、n was entrusted to TechnicalCommittee B/539, Ceramic tiles and other rigid tiling.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its cor
3、rectapplication. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 82447 0ICS 83.180; 91.100.23Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and
4、 Strategy Committee on 31 October 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 14448:2016 ISO 2016Low modulus adhesives for exterior tile finishingAdhsifs faible module dlasticit pour le collage extrieur des carreaux cramiquesINTERNATIONAL STANDARDISO14448Fir
5、st edition2016-10-15Reference numberISO 14448:2016(E)BS ISO 14448:2016ISO 14448:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in
6、 any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Bl
7、andonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 14448:2016ISO 14448:2016(E)Foreword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Classification and designation . 25 Requirement . 26 General test cond
8、itions and procedures 36.1 Testing conditions 36.2 Test materials . 36.2.1 General 36.2.2 Cement mortar substrate . 46.2.3 Ceramic tiles 46.2.4 Fibre cement flat sheets. 46.3 Notched trowel . 46.4 Pull head plate . 47 Test methods . 57.1 Shelf life . 57.2 Mixing homogeneity inspection . 57.3 Adhesiv
9、e strength . 57.3.1 Materials for the testing 57.3.2 Preparation of test pieces. 67.3.3 Curing of test assembly 77.3.4 Treating of test assembly 77.3.5 Adhesive strength . 87.4 Cured film test 127.4.1 Preparation of sample 127.4.2 Tensile test . 137.5 Heat stability 157.5.1 Materials for the testing
10、 . 157.5.2 Preparation of test pieces 157.6 Slip test . 167.6.1 Materials for the testing . 167.6.2 Preparation of test pieces and test procedure 177.7 Pot-life (2 component adhesives) 177.7.1 General. 177.7.2 Apparatus 177.7.3 Procedure 187.8 Open time (1 component adhesives) 187.8.1 Materials for
11、the testing . 187.8.2 Preparation of test pieces and testing procedure 187.8.3 Determination of open time 197.9 Density 198 Nomenclature of product 199 Labeling .1910 Handling precaution 19Bibliography .20 ISO 2016 All rights reserved iiiContents PageBS ISO 14448:2016ISO 14448:2016(E)ForewordISO (th
12、e International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committ
13、ee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechn
14、ical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted i
15、n accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
16、Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute a
17、n endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/forewor
18、d.html.The committee responsible for this document is ISO/TC 189, Ceramic tile.iv ISO 2016 All rights reservedBS ISO 14448:2016INTERNATIONAL STANDARD ISO 14448:2016(E)Low modulus adhesives for exterior tile finishing1 ScopeThis International Standard specifies a quality standard and test methods for
19、 a low modulus adhesive composed of chemical reaction resins and used for the installation of tiles to exterior walls.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only
20、the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 37:2011, Rubber, vulcanized or thermoplastic Determination of tensile stress-strain propertiesISO 188:2011, Rubber, vulcanized or thermoplastic Accelerated ageing a
21、nd heat resistance testsISO 679:2009, Cement Test methods Determination of strengthISO 2811-1, Paints and varnishes Determination of density Part 1: Pycnometer methodISO 6344-2, Coated abrasives Grain size analysis Part 2: Determination of grain size distribution of macrogrits P12 to P220ISO 8336, F
22、ibre-cement flat sheets Product specification and test methodsISO 10364:2007, Structural adhesives Determination of the pot life (working life) of multi-component adhesivesISO 13006, Ceramic tiles Definitions, classification, characteristics and markingISO 21948, Coated abrasives Plain sheets3 Terms
23、 and definitionsFor the purposes of this document, the following terms and definitions apply.3.1pot-lifetime interval during which the adhesive can be used after mixing3.2open timemaximum time interval after application at which tiles can be embedded in the applied adhesive and meet the specified te
24、nsile adhesion strength requirement3.3shelf lifetime of storage under stated conditions during which an adhesive may be expected to maintain its working properties3.4slipdownward movement of a tile applied to a combed adhesive layer on a vertical surface ISO 2016 All rights reserved 1BS ISO 14448:20
25、16ISO 14448:2016(E)3.5reaction resin adhesivesingle- or multi-component mixture of synthetic resin, mineral fillers and organic additives in which curing occurs by chemical reaction3.6notched troweltoothed tool, which makes it possible to apply the adhesive as a series of ribs of a uniform thickness
26、 onto the fixing surface and/or the reverse face of the tile3.7cohesive failure ratiopercentage of total cohesive failure area of adhesive, substrate or tile, over total adhesion area3.8low modulus adhesiveadhesives curing to elastomeric rubbery film which has minimum 35 % of elongation at tensile t
27、esting break point3.9cementfinely ground inorganic material that, when mixed with water, forms a paste that sets by means of hydration reactions and processes, and that, after hardening, retains its strength and stability, even under waterNote 1 to entry: Cement for mortar substrate shall be Portlan
28、d cement which is specified in ASTM C150 type 1.SOURCE: ISO 6707-1:2014, 6.4.16, modified4 Classification and designationAdhesives shall be sorted into four groups as shown in Table 1, based on the principal components and the reaction modes.Table 1 Grouping of tile adhesiveSort RemarksPolyurethane
29、resin 1 component reaction-cure Urethane resin based 1 component adhesive2 component reaction-cure Urethane resin based 2 component adhesiveSilyl terminated polymers1 component reaction-cure Silyl terminated polymers based 1 component adhesive(exclude silicone) 2 component reaction-cure Silyl termin
30、ated polymers based 2 component adhesive5 RequirementThe adhesives shall meet the requirements of Table 2.2 ISO 2016 All rights reservedBS ISO 14448:2016ISO 14448:2016(E)Table 2 Product requirementsProperty Requirement Test methodShelf life Homogeneous with no gelling,Less than 5 % weight change,7.1
31、Mixing homogeneity inspection (2 component adhesives) Homogeneous after mixing 7.2Adhesive strengthStandard curing 0,60 N/mm2or higher and 75 % or more cohesive failure ratio7.3Low temperature curing 0,40 N/mm2or higher and 50 % or more cohesive failure ratioAlkaline warm water immersion 0,40 N/mm2o
32、r higher and 50 % or more cohesive failure ratioFreeze-thaw cycles 0,40 N/mm2or higher and 50 % or more cohesive failure ratioHeat aging 0,40 N/mm2or higher and 50 % or more cohesive failure ratioCured film propertyTensile propertyTensile strength 0,60 N/mm2or higher 7.4Elongation at break 35 % or m
33、oreCold and hot resistanceTensile strengthTest temp: 80 C 0,60 N/mm2or higherTest temp: 20 C 0,60 N/mm2or higherElongation at breakTest temp: 80 C 35 % or moreTest temp: 20 C 35 % or moreTensile property after treatmentTensile strengthImmersion in alkaline water0,40 N/mm2or higherHeat aging 0,40 N/m
34、m2or higherElongation at breakImmersion in alkaline water25 % or moreHeat aging 25 % or moreHeat stability 4 weeks of stable tile maintenance at 80 C , under 1 kg load7.5Slip No slip 7.6Pot-life (2 component adhesives) Time indicated on the label 7.7Open time (1 component adhesives) Time indicated o
35、n the label 7.8Density Density indicated on the label 7.96 General test conditions and procedures6.1 Testing conditionsStandard conditions shall be (23 2) C and (50 5) % relative humidity (RH). Other test conditions may be specified in Clause 7.6.2 Test materials6.2.1 GeneralCondition all test mater
36、ials including water for at least 24 h under standard conditions. The adhesive to be tested shall be within its shelf life, where this is specified. ISO 2016 All rights reserved 3BS ISO 14448:2016ISO 14448:2016(E)6.2.2 Cement mortar substrateMold a block in a 70 mm 70 mm 20 mm metal frame by pouring
37、 mortar specified in ISO 679:2009, Clause 6 and cure it at (20 3) C and at least 80 % RH for 24 h before taking it out. Then, cure the block in water at (20 3) C for 7 d. Then, condition for two weeks at (23 2) C and (50 10) % RH. Polish the surface well using sandpaper as specified in ISO 21948 wit
38、h a P150 grain size specified in ISO 6344-2, to remove any efflorescence or release agents from the surface.6.2.3 Ceramic tilesThe tiles used for this test shall be Group BIa tiles complying with ISO 13006 with water absorption less than 0,5 % by mass. The tiles shall be checked prior to conditionin
39、g to ensure that they are unused, clean and dry.6.2.4 Fibre cement flat sheetsThe fibre cement flat sheets shall be category C as defined in ISO 8336 with a thickness of 8 mm.6.3 Notched trowelThe adhesive spreading tool for the test shall be a common comb trowel of which the blade is made of steel
40、or similar and of dimensions as shown in Figure 1. A different comb trowel may be used if specified in the instruction of the adhesive manufacturer.Dimensions in millimetresKeyl15 to 7l20,5Figure 1 Common comb trowel6.4 Pull head plateSquare metallic plates, with dimensions of (40 1) mm (40 1) mm wi
41、th a suitable fitting for connection to the test machine. The dimensions of the block are shown in Figure 2.4 ISO 2016 All rights reservedBS ISO 14448:2016ISO 14448:2016(E)Dimension in millimetresKey1 metallic platesFigure 2 Pull head plate7 Test methods7.1 Shelf lifeStore the adhesive for four week
42、s in the original unopened package at (23 2) C and (50 10) % RH for the first two weeks and at (50 2) C and (85 5) % RH for the next two weeks. After the storage period, place approximately 100 g adhesive on the glass plate with dimensions 100 mm 100 mm 5 mm and immediately spread the adhesive to ab
43、out 1 mm layer using a suitable paddle. Inspect the layer for any gel and foreign matters. This test is applicable only to the 1 component adhesives.7.2 Mixing homogeneity inspectionTake base resin and hardener in an approximate volume to gain 200 g to 300 g blend and in the ratio that the manufactu
44、rer specifies. Place it on the glass plate with dimensions 300 mm 300 mm 5 mm and immediately mix well for about 3 min. After mixing, confirm homogeneity by a visual check. This test is applicable only to the 2 component adhesives.7.3 Adhesive strength7.3.1 Materials for the testing7.3.1.1 Substrate
45、The substrate is the cement mortar substrate defined in 6.2.2 with dimensions of approximately 70 mm 70 mm 20 mm. The surface should be free of dust, dirt, etc.7.3.1.2 Ceramic tilesThe ceramic tiles are the ones defined in 6.2.3 with dimensions of approximately 45 mm 45 mm 7 mm. ISO 2016 All rights
46、reserved 5BS ISO 14448:2016ISO 14448:2016(E)7.3.2 Preparation of test pieces7.3.2.1 Spreading of adhesiveInsert five substrate with their polished surfaces up, into the steel frame of Figure 3 and fix them without leaving gaps. Adhere a flexible masking tape on the steel frame as shown in Figure 4,
47、so that it goes 7 mm over the substrate edges. Apply a sufficient volume of adhesive to the substrate and spread it to a layer of approximately 5 mm. Comb the adhesive layer with a common comb trowel, holding the comb at an angle of approximately 60, so that the adhesive is evenly spread. Remove the
48、 masking tape slowly.Dimension in millimetresKeyl1350 1l220 1l3390 1l470 0,5l5110 5l610 4l720 1l830 4Figure 3 Steel frame for adhesive spreading6 ISO 2016 All rights reservedBS ISO 14448:2016ISO 14448:2016(E)Dimension in millimetresKey1 masking tape2 steel frame for spreading3 substrate to be spread
49、 of adhesiveaDirection of comb trowel stroke.Figure 4 Adhesive spreading7.3.2.2 Placing of tileWhen the adhesive is spread, place a ceramic tile as defined in 7.3.1.2 on each substrate. Excess adhesive pushed out of the tile should be removed immediately.7.3.3 Curing of test assembly7.3.3.1 Standard cureCure the assembly for 672 h in standard conditions.7.3.3.2 Low temperature curingCure the assembly for 672 h under (5 2) C condi
