EN 12090:2013
(Main)Thermal insulating products for building applications - Determination of shear behaviour
Thermal insulating products for building applications - Determination of shear behaviour
This European Standard specifies the equipment and procedures for determining shear behaviour. It is applicable to thermal insulating products.
NOTE The tests described in this standard do not determine pure shear behaviour, but measure the effects of applying two opposite parallel forces to the major faces of the test specimen. The test is however called shear in this text by convention. The application of a force tangentially to the major surface of the test specimen is considered to represent more closely the stresses imposed upon thermal insulation products in many building applications, particularly walls, than other methods of measuring shear performance e.g. bending tests.
Wärmedämmstoffe für das Bauwesen - Bestimmung des Verhaltens bei Scherbeanspruchung
Diese Europäische Norm legt Prüfeinrichtungen und Verfahren zur Bestimmung des Verhaltens bei Scherbeanspruchung fest. Sie gilt für Wärmedämmstoffe.
ANMERKUNG Mit den in dieser Norm beschriebenen Prüfungen wird nicht das reine Scherverhalten bestimmt, sondern die Wirkung zweier gegenläufiger Parallelkräfte gemessen, die auf die größten Oberflächen des Probekörpers einwirken. Trotzdem wird in dieser Norm gewohnheitsmäßig von der Prüfung des Scherverhaltens gesprochen. Es wird davon ausgegangen, dass eine tangential zur größeren Oberfläche des Probekörpers aufgebrachte Kraft mehr den Beanspruchungen entspricht, denen Wärmedämmstoffe in vielen Anwendungsbereichen des Bauwesens — insbesondere bei Wänden — ausgesetzt sind, als die Bestimmung des Scherverhaltens mit anderen Prüfverfahren, wie z. B. dem Biegeversuch.
Produits isolants thermiques destinés aux applications du bâtiment - Détermination du comportement en cisaillement
La présente Norme européenne spécifie l'équipement et les modes opératoires permettant de déterminer le comportement en cisaillement. Elle s'applique aux produits isolants thermiques.
NOTE Les essais décrits dans la présente norme ne déterminent pas le comportement en cisaillement proprement dit, mais mesurent les effets de l'application de deux forces parallèles opposées sur les faces principales de l'éprouvette. Toutefois, l’essai est désigné dans le texte comme de cisaillement par convention. L'application d'une force tangentielle à la face principale de l'éprouvette est considérée représenter mieux les contraintes imposées aux produits isolants thermiques dans beaucoup d'applications du bâtiment, et plus particulièrement pour les murs, que les autres méthodes de mesure de la performance au cisaillement, par exemple les essais de flexion.
Toplotnoizolacijski proizvodi za uporabo v gradbeništvu - Ugotavljanje obnašanja pri strigu
Ta evropski standard določa opremo in postopke za ugotavljanje obnašanja strig. Uporablja se za toplotnoizolacijske proizvode.
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Toplotnoizolacijski proizvodi za uporabo v gradbeništvu - Ugotavljanje obnašanja pri striguWärmedämmstoffe für das Bauwesen - Bestimmung des Verhaltens bei ScherbeanspruchungProduits isolants thermiques destinés aux applications du bâtiment - Détermination du comportement en cisaillementThermal insulating products for building applications - Determination of shear behaviour91.100.60Thermal and sound insulating materialsICS:Ta slovenski standard je istoveten z:EN 12090:2013SIST EN 12090:2013en,fr,de01-julij-2013SIST EN 12090:2013SLOVENSKI
STANDARDSIST EN 12090:19991DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12090
March 2013 ICS 91.100.60 Supersedes EN 12090:1997English Version
Thermal insulating products for building applications - Determination of shear behaviour
Produits isolants thermiques destinés aux applications du bâtiment - Détermination du comportement en cisaillement Wärmedämmstoffe für das Bauwesen - Bestimmung des Verhaltens bei Scherbeanspruchung This European Standard was approved by CEN on 15 December 2012.
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 lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre 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 responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12090:2013: ESIST EN 12090:2013
The revision of this standard contains no major changes, only minor corrections and clarifications of an editorial nature. This European Standard is one of a series of standards which specify test methods for determining dimensions and properties of thermal insulating materials and products. It supports a series of product standards for thermal insulating materials and products which derive from the Council Directive of 21 December 1988 on the approximation of laws, regulations and administrative provisions of the Member States relating to construction products (Directive 89/106/EEC) through the consideration of the essential requirements. This European Standard has been drafted for applications in buildings but it may also be used in other areas where it is relevant. This European test standard is one of the following group of inter-related standards on test methods for determining dimensions and properties of thermal insulation materials and products, all of which fall within the scope of CEN/TC 88: EN 822, Thermal insulating products for building applications — Determination of length and width EN 823, Thermal insulating products for building applications — Determination of thickness EN 824, Thermal insulating products for building applications — Determination of squareness EN 825, Thermal insulating products for building applications — Determination of flatness EN 826, Thermal insulating products for building applications — Determination of compression behaviour EN 1602, Thermal insulating products for building applications — Determination of the apparent density EN 1603, Thermal insulating products for building applications — Determination of dimensional stability under constant normal laboratory conditions (23 °C/50 % relative humidity) EN 1604, Thermal insulating products for building applications — Determination of dimensional stability under specified temperature and humidity conditions EN 1605, Thermal insulating products for building applications — Determination of deformation under specified compressive load and temperature conditions EN 1606, Thermal insulating products for building applications — Determination of compressive creep SIST EN 12090:2013
shear strength
τ ratio of the maximum force applied to the product, which will cause rupture along a plane parallel to the direction of the applied force, to the area of the plane on which the force acts 3.2
shear modulus,
G
shear stress divided by the corresponding relative deformation below the proportional limit, when the relationship is linear
Note 1 to entry: See Figure 3. 4 Principle A test specimen is subjected to a shear stress transmitted to the test specimen through rigid supports to which it is bonded. The corresponding force-displacement curve is determined. NOTE Tests carried out using the single test specimen method have produced results for shear strength, which indicate the result to be dependent upon test specimen thickness, with more scattered results at greater thicknesses. Tests using the double test specimen method have also shown test specimen thickness to influence results for shear strength. 5 Apparatus
5.1 Test machine
5.1.1 General
A test machine capable of applying a sufficient force within the maximum displacement experienced in the shear test. It shall be capable of operating at a constant rate of movement of the movable head of (3 ± 0,5) mm/min in a direction parallel to the longitudinal axis of the test specimen assembly.
shall be simultaneously recorded to provide the curve of F,
required in Clause 7. It may be necessary to use a displacement transducer for accurate measurement of deformation particularly where a thick adhesive layer has been used in preparing the test specimen. The null or zero displacement of the test specimen may be calculated by subtraction from , the displacement due to the equipment and the same thickness of adhesive measured without the test specimen, e.g. replace the test specimen by metal block(s) in a blank test. 5.1.2 Single test specimen arrangement The test machine shall exert longitudinal shear forces through parallel plates bonded to a single test specimen of dimensions as in 6.1.2. The parallel plates shall be rigid with one plate attached to the fixed and the other to the movable parts of the test machi
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