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    ISO 12968-2010 Thermal insulation products for building applications - Determination of the pull-off resistance of external thermal insulation composite systems.pdf

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    ISO 12968-2010 Thermal insulation products for building applications - Determination of the pull-off resistance of external thermal insulation composite systems.pdf

    1、 Reference number ISO 12968:2010(E) ISO 2010INTERNATIONAL STANDARD ISO 12968 First edition 2010-01-15 Thermal insulation products for building applications Determination of the pull- off resistance of external thermal insulation composite systems (ETICS) (foam block test) Produits isolants thermique

    2、s destins aux applications du btiment Dtermination de la rsistance larrachement des systmes disolation thermique par lextrieur (systmes ITE) (essai au bloc de mousse) ISO 12968:2010(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file

    3、may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobes licensing policy. The ISO Central Secretariat ac

    4、cepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that

    5、the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO 2010 All rights reserved. Unless otherwise specified, no part of this publication may be

    6、 reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 4

    7、1 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2010 All rights reservedISO 12968:2010(E) ISO 2010 All rights reserved iiiForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bod

    8、ies (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 committee has been established has the right to be represented on that committee. International organization

    9、s, 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 electrotechnical standardization. International Standards are drafted in accordance with the rules given in the I

    10、SO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the

    11、 member bodies casting a vote. 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. ISO 12968 was prepared by Technical Committee ISO/TC 163, Thermal perf

    12、ormance and energy use in the built environment, Subcommittee SC 1, Test and measurement methods. ISO 12968:2010(E) iv ISO 2010 All rights reservedIntroduction This International Standard is based on EN 13495:2002 prepared by Technical Committee CEN/TC 88, Thermal insulating materials and products,

    13、which has been amended by ISO/TC 163/SC 1 with reference to conditioning and testing conditions in tropical countries. This International Standard is one of a series of documents specifying test methods, based on existing European Standards that are being adopted by ISO/TC 163/SC 1. This “package” o

    14、f standards includes the following group of interrelated documents: International Standard Title Respective EN standard 12968 Thermal insulation products for building applications Determination of the pull-off resistance of external thermal insulation composite systems (ETICS) (foam block test) EN 1

    15、3495 29465 Thermal insulating products for building applications Determination of length and width EN 822 29466 Thermal insulating products for building applications Determination of thickness EN 823 29467 Thermal insulating products for building applications Determination of squareness EN 824 29468

    16、 Thermal insulating products for building applications Determination of flatness EN 825 29469 Thermal insulating products for building applications Determination of compression behaviour EN 826 29470 Thermal insulating products for building applications Determination of the apparent density EN 1602

    17、29471 Thermal insulating products for building applications Determination of dimensional stability under constant normal laboratory conditions (23C/50 % relative humidity) EN 1603 29472 Thermal insulating products for building applications Determination of dimensional stability under specified tempe

    18、rature and humidity conditions EN 1604 29764 Thermal insulating products for building applications Determination of deformation under specified compressive load and temperature conditions EN 1605 29765 Thermal insulating products for building applications Determination of tensile strength perpendicu

    19、lar to faces EN 1607 29766 Thermal insulating products for building applications Determination of tensile strength parallel to faces EN 1608 ISO 12968:2010(E) ISO 2010 All rights reserved vInternational Standard Title Respective EN standard 29767 Thermal insulating products for building applications

    20、 Determination of short-term water absorption by partial immersion EN 1609 29768 Thermal insulating products for building applications Determination of linear dimensions of test specimens EN 12085 29769 Thermal insulating products for building applications Determination of behaviour under point load

    21、 EN 12430 29770 Thermal insulating products for building applications Determination of thickness for floating-floor insulating products EN 12431 29771 Thermal insulating materials for building applications Determination of organic content EN 13820 29803 Thermal insulation products for building appli

    22、cations Determination of the resistance to impact of external thermal insulation composite systems (ETICS) EN 13497 29804 Thermal insulation products for building applications Determination of the tensile bond strength of the adhesive and of the base coat to the thermal insulation material EN 13494

    23、29805 Thermal insulation products for building applications Determination of the mechanical properties of glass fibre meshes EN 13496 INTERNATIONAL STANDARD ISO 12968:2010(E) ISO 2010 All rights reserved 1Thermal insulation products for building applications Determination of the pull-off resistance

    24、of external thermal insulation composite systems (ETICS) (foam block test) 1 Scope This International Standard specifies equipment and a procedure for determining the pull-off resistance of external thermal insulation composite systems (ETICS), which are mechanical fixed or mechanical fixed and bond

    25、ed. The method described is known as the “foam block test”. NOTE This test is not intended to measure the pull-off resistance of the ETICS to the substrate. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only th

    26、e edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3251, Paints, varnishes and plastics Determination of non-volatile-matter content ISO 3386-1, Polymeric materials, cellular flexible Determination of stress-strain c

    27、haracteristics in compression Part 1: Low-density materials ISO 3451-1, Plastics Determination of ash Part 1: General methods ISO 9229, Thermal insulation Vocabulary ISO 29465, Thermal insulating products for building applications Determination of length and width ISO 29466, Thermal insulating produ

    28、cts for building applications Determination of thickness ISO 29470, Thermal insulating products for building applications Determination of the apparent density ISO 29765, Thermal insulating products for building applications Determination of tensile strength perpendicular to faces EN 206-1, Concrete

    29、 Part 1: Specification, performance, production and conformity EN 1015-1, Methods of test for mortar for masonry Part 1: Determination of particle size distribution (by sieve analysis) EN 13499, Thermal insulation products for buildings External thermal insulation composite systems (ETICS) based on

    30、expanded polystyrene Specification ISO 12968:2010(E) 2 ISO 2010 All rights reserved3 Terms and definitions, symbols and units 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 9229 and EN 13499 apply. 3.2 Symbols and units The symbols used in this In

    31、ternational Standard are the following. pull-off resistance, in kPa; F maximum tensile load, in kN; A cross-sectional area of the test specimen, in m 2 . 4 Principle The pull-off resistance of external thermal insulation composite systems is determined by conducting the static foam block test. The p

    32、ull-off resistance is calculated from the maximum tensile load. 5 Apparatus 5.1 Test apparatus, with which the testing load is generated by a hydraulic jack and transferred via a load cell to crossed steel joists. The joists are fixed with timber screws to the plywood panel in such a way that the lo

    33、ad application is in the middle of the plywood panel. An example of test apparatus and test specimen is given in Figure 1. Key 1 timber panel 2 foam block 3 base coat F tension force 4 reinforcement 5 thermal insulation material 6 reinforced concrete slab 7 anchors 8 glue Figure 1 Example of a test

    34、apparatus and test specimen for the static foam block test ISO 12968:2010(E) ISO 2010 All rights reserved 35.2 Concrete slab, the dimensions of which shall be at least the dimensions of the ETICS specimen. The thickness of the concrete slab shall take account of the lengths of the fixing devices hav

    35、ing a minimum thickness of 100 mm. The concrete slab shall have a minimum strength class of C 20/25 in accordance with EN 206-1. 5.3 Foam blocks, of dimension between 200 mm 200 mm and 333 mm 333 mm. The thickness of the foam blocks shall be 300 mm to 500 mm. The foam block shall be weak enough to f

    36、ollow all deformations of the finishing coat without affecting the bending stiffness of the system. The tensile strength of the foam block, consisting e.g. of polyether foam, should be in the range of 80 kPa to 150 kPa and the rupture strain should exceed 160 %. The compression stress value conformi

    37、ng to ISO 3386-1 should be in the order of 1,5 kPa to 7,0 kPa. NOTE A suitable initial thickness of the block elements is 500 mm. After the determination is finished, the blocks can be cut off with a hot wire. They can be re-used at least 20 times until the remaining length is still about 300 mm. 5.

    38、4 Glue, suitable for rough surfaces (render surface), for timber and for the foam block used (e.g. solvent free epoxy adhesive or polyurethane adhesive). The glue shall not damage the thermal insulation material, the base coat or the adhesive, and shall not influence the results. 5.5 Timber panel, h

    39、aving the same dimensions as the test specimen. The mechanical stability of the timber panels shall not influence the test results. 5.6 Tensile testing machine, appropriate for the range of force and displacement involved, and capable of having a constant crosshead speed adjusted to (10 1) mm/min. I

    40、t shall be capable of measuring the force with an error limit of 1 % (see ISO 29765). 6 Test specimens 6.1 Preparation of test specimens Apply the ETICS to be tested to a concrete slab by using the mechanical fixing devices in accordance with the specifications of the manufacturer of the ETICS. When

    41、 using solely fixing anchors, these may be uniformly distributed over the test specimen area. Coat the surface of the specimen with the base coat containing the embedded reinforcement in accordance with the manufacturers instructions. The test specimen shall reflect a realistic area of the whole sys

    42、tem including, if necessary, several boards. The pull-off resistance is dependent on the thickness of the thermal insulation material. For this reason, the thermal insulation material at the test shall have the minimum thickness which is supplied by the manufacturer of the system and which fulfils t

    43、he requirement of ETICS with a declared thermal resistance equal to or greater than 1 m 2 K/W. After a time period which is specified by the manufacturer, glue foam blocks over the whole render surface of the test specimen (5.4). Then, glue a timber panel (5.5) to the foam blocks, using the same glu

    44、e. The determination can be performed after the glue has completely hardened. 6.2 Number of test specimens At least three test specimens are required for the determination. 6.3 Conditioning of test specimens The conditioning of the test specimens shall be carried out as specified in the relevant ETI

    45、CS product standard. NOTE In the absence of a product standard for ETICS or any other European technical specification, the conditioning procedure can be agreed on between the parties. ISO 12968:2010(E) 4 ISO 2010 All rights reserved7 Procedure 7.1 Test conditions The test shall be carried out at (2

    46、3 5) C. In tropical countries, different conditioning and testing conditions can be relevant. In this case, the conditions shall be (27 2) C and (65 5) % relative humidity and be stated clearly in the test report. 7.2 Test procedure Carry out the pull-off resistance measurement in accordance with IS

    47、O 29765 until failure occurs. Apply the tensile load perpendicular to the test area (see Figure 1). Unless otherwise specified or agreed, increase the load with a constant crosshead speed adjusted to (10 1) mm/min. Record the tensile force at the maximum load achieved. Reject any test where the mode

    48、 of failure is a fracture at the glue layer between the test specimen and the foam block or between foam block and timber panel. 7.3 Calculation and expression of results Calculate the pull-off resistance, , in kPa, using Equation (1): F A = (1) where F is the maximum tensile load, in kN; A is the c

    49、ross-sectional area of the test specimen, in m 2 ; is the pull-off resistance, in kPa. The results shall be rounded to the nearest 1 kPa. 8 Accuracy of measurement NOTE It was not possible to include a statement on the accuracy of the measurement at the time of publication of this International Standard, however, it is intended to include such a statement upon revision of this International Standard. 9 Test report The test report shall inclu


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