Sealants for non-structural use in joints in buildings and pedestrian walkways - Part 4: Sealants for pedestrian walkways

This European Standard specifies definitions and requirements for cold applied non-structural elastic sealants used for movement joints in floors in building construction for interior and exterior use.
Areas of application are: floor joints designed for pedestrian walkways, public areas, movement joints between concrete slabs, areas with pedestrian load, areas used with trolleys, walkable floors, balconies, terraces, warehouses.
NOTE   Provisions on assessment and verification of constancy of performance - AVCP (i.e. Product type determination and Factory Production Control) and marking of these products are given in EN 15651-5.
Chemical containment, cold applied joint sealants for concrete pavements to be used in roads, airfields and sewage treatment plants, perimeter seals and seals in wood floors are excluded.
This European Standard does not apply to non-structural sealants in any of non-paste form, to those used in pedestrian walkways.

Fugendichtstoffe für nicht tragende Anwendungen in Gebäuden und Fußgängerwegen - Teil 4: Fugendichtstoffe für Fußgängerwege

Dieses Europäische Norm legt Definitionen für und Anforderungen an kalt verarbeitbare, nicht tragende elastische Dichtstoffe fest, die im Hochbau, sowohl im Innen- als auch im Außenbereich, für Bewegungsfugen in Böden verwendet werden.
Anwendungsbereiche sind: für Fußgängerwege und öffentliche Bereiche ausgelegte Bodenfugen, Bewe-gungsfugen zwischen Betonplatten, Bereiche mit Lasten durch Fußgänger, durch Gepäckwagen/Kofferkulis belastete Bereiche, begehbare Böden, Balkone, Terrassen, Lagerhäuser.
ANMERKUNG   Festlegungen zur Bewertung und Überprüfung der Leistungsbeständigkeit - AVCP (d.  h. zur Bestimmung des Produkttyps sowie zur werkseigenen Produktionskontrolle) und zur Kennzeichnung dieser Produkte werden in EN 15651-5 angegeben.
Chemische Sicherheitsbereiche, kalt verarbeitbare Fugendichtstoffe für Betonfahrbahnen von Straßen, Flugplätzen und Kläranlagen, Umfangsabdichtungen und Fugen in Holzfußböden sind ausgeschlossen.
Diese Europäische Norm gilt nicht für nicht tragende, nicht plastische (nicht in pastöser Form vorliegende) Dichtstoffe, die für Fugen in Fußgängerwegen verwendet werden.

Mastics pour joints pour des usages non structuraux dans les constructions immobilières et pour chemins piétonniers - Partie 4 : Mastics pour chemins piétonniers

La présente Norme européenne spécifie les définitions et les exigences relatives aux mastics élastiques non structuraux appliqués à froid utilisés pour réaliser des joints dynamiques de planchers dans le domaine de la construction immobilière et prévus pour un usage intérieur ou extérieur.
Les domaines d'application sont les suivants : joints de planchers conçus pour les chemins piétonniers, lieux publics, joints dynamiques entre des dalles en béton, zones soumises à une charge piétonnière, zones où circulent des chariots, planchers à usage piétonnier, balcons, terrasses et entrepôts.
NOTE   Les dispositions concernant l'évaluation et la vérification de la constance des performances, ou EVCP, (à savoir la détermination du type de produit et le contrôle de la production en usine) et le marquage de ces produits sont données dans l'EN 15651-5.
Sont exclus les applications pour réservoirs de produits chimiques, les mastics pour joints appliqués à froid pour les dalles en béton routières destinés aux routes, terrains d'aviation et stations d'épurations, ainsi que les joints périphériques et les joints pour parquets en bois.
La présente Norme européenne ne s'applique pas aux produits pour joints non structuraux sous une autre forme que pâteuse utilisés dans les chemins piétonniers.

Tesnilne mase za nekonstrukcijske stike v stavbah in na površinah za pešce - 4. del: Tesnilne mase za površine za pešce

Ta evropski standard določa definicije in zahteve za hladno nanesene nekonstrukcijske elastične tesnilne mase, ki se uporabljajo za premikajoče stike na tleh pri gradnji stavb za notranjo in zunanjo uporabo.
Področja uporabe so: talni stiki za sprehajalne površine, javne površine, premikajoči se stiki med betonskimi ploščami, površine z obremenitvijo pešcev, površine, na katerih se uporabljajo vozički, pohodna tla, balkoni, terase, skladišča.
OPOMBA   Določila o ocenjevanju in preverjanju stalnosti delovanja – AVCP (tj. določevanje tipa izdelka in kontrola proizvodnje v obratu) ter označevanju teh izdelkov so podana v standardu EN 15651-5.
Hramba kemikalij, hladno nanesene tesnilne mase za stik betonskih površin na cestah, letalskih stezah in v napravah za čiščenje odplak, obodne tesnilne mase ter tesnilne mase na lesenih talnih oblogah niso vključene.
Ta evropski standard se ne uporablja za nekonstrukcijske tesnilne mase, ki niso v obliki paste in tesnilne mase, ki se uporabljajo na sprehajalnih površinah.

General Information

Status
Published
Public Enquiry End Date
19-Nov-2016
Publication Date
07-Mar-2017
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
28-Feb-2017
Due Date
05-May-2017
Completion Date
08-Mar-2017

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Tesnilne mase za nekonstrukcijske stike v stavbah in na površinah za pešce - 4. del: Tesnilne mase za površine za pešceFugendichtstoffe für nicht tragende Anwendungen in Gebäuden und Fußgängerwegen - Teil 4: Fugendichtstoffe für FußgängerwegeMastics pour joints pour des usages non structuraux dans les constructions immobilières et pour chemins piétonniers - Partie 4 : Mastics pour chemins piétonniersSealants for non-structural use in joints in buildings and pedestrian walkways - Part 4: Sealants for pedestrian walkways91.100.50Veziva. Tesnilni materialiBinders. Sealing materialsICS:Ta slovenski standard je istoveten z:EN 15651-4:2017SIST EN 15651-4:2017en,fr,de01-april-2017SIST EN 15651-4:2017SLOVENSKI
STANDARDSIST EN 15651-4:20131DGRPHãþD



SIST EN 15651-4:2017



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15651-4
February
t r s y ICS
{ sä s r rä w r Supersedes EN
s w x w sæ vã t r s tEnglish Version
Sealants for nonæstructural use in joints in buildings and pedestrian walkways æ Part
vã Sealants for pedestrian walkways Mastics pour joints pour des usages non structuraux dans les constructions immobilières et pour chemins piétonniers æ Partie
v ã Mastics pour chemins piétonniers
Fugendichtstoffe für nicht tragende Anwendungen in Gebäuden und Fußgängerwegen æ Teil
vã Fugendichtstoffe für Fußgängerwege This European Standard was approved by CEN on
t w December
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s w x w sæ vã t r s y ESIST EN 15651-4:2017



EN 15651-4:2017 (E) 2 Contents Page European foreword . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 6 4 Requirements . 6 4.1 Identification requirements . 6 4.1.1 Short description of the sealant. 6 4.1.2 Thermogravimetric test . 7 4.1.3 Density . 7 4.1.4 Indentation hardness (Shore hardness). 7 4.2 Conditioning, test procedure and substrates . 7 4.2.1 General . 7 4.2.2 Classification . 7 4.2.3 Test procedure . 9 4.3 Performance requirements and test methods for non-structural sealants for pedestrian walkways . 10 4.3.1 General . 10 4.3.2 Sealants in pedestrian walkways used in cold climates . 10 4.3.3 Resistance to flow for non-sagging sealants . 11 4.3.4 Sealants with self-levelling properties . 11 4.3.5 Tear resistance . 11 4.4 Additional performance requirements for exterior applications . 13 4.4.1 General . 13 4.4.2 Artificial weathering by UV-radiation . 13 4.5 Release of dangerous substances . 14 4.6 Reaction to fire . 14 4.6.1 General . 14 4.6.2 Mounting and fixing conditions for test samples . 14 5 Durability . 16 6 Sampling . 16 7 Assessment and verification of constancy of performance . 16 7.1 General . 16 7.2 Product type determination . 16 7.3 Factory production control . 16 8 Marking and labelling . 16 Annex A (informative)
Example on the frequency of tests for factory production control. 17 Annex B (normative)
Determination of the change of volume of self-levelling cold applied joint sealants . 18 B.1 Principle . 18 B.2 Apparatus and materials . 18 B.3 Preparation of test specimens. 18 B.4 Test procedure . 18 SIST EN 15651-4:2017



EN 15651-4:2017 (E) 3 B.5 Calculation and expression of results . 19 B.5.1 Change in mass . 19 B.5.2 Change in volume . 19 Annex ZA (informative)
Relationship of this European Standard with Regulation (EU) No.305/2011 . 20 ZA.1 Scope and relevant characteristics . 20 ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) . 21 ZA.3 Assignment of AVCP tasks . 21 Bibliography . 24
SIST EN 15651-4:2017



EN 15651-4:2017 (E) 4 European foreword This document (EN 15651-4:2017) has been prepared by Technical Committee CEN/TC 349 “Sealants for joints in building construction”, the secretariat of which is held by AFNOR. This document supersedes EN 15651-4:2012. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August 2017, and conflicting national standards shall be withdrawn at the latest by November 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports basic work requirements of EU Regulation. For relationship with EU Regulation, see informative Annex ZA, which is an integral part of this document. This document is one of the product European Standards within the framework series of EN 15651 on Sealants for non-structural use in joints in buildings and pedestrian walkways, as follows: — Part 1: Sealants for facade elements, — Part 2: Sealants for glazing, — Part 3: Sealants for sanitary joints, — Part 4: Sealants for pedestrian walkways (this document), — Part 5: Assessment and verification of constancy of performance, marking and labelling. The following significant technical changes have been implemented in this new edition: — Clause 4.1.3 and Clause 5 have been improved; — Clause 4.5 has been modified; — Clause 7 and Annex ZA have been changed in accordance with the regulation (EU) No.305/2011. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 15651-4:2017



EN 15651-4:2017 (E) 5 1 Scope This European Standard specifies definitions and requirements for cold applied non-structural elastic sealants used for movement joints in floors in building construction for interior and exterior use. Areas of application are: floor joints designed for pedestrian walkways, public areas, movement joints between concrete slabs, areas with pedestrian load, areas used with trolleys, walkable floors, balconies, terraces, warehouses. NOTE Provisions on assessment and verification of constancy of performance - AVCP (i.e. Product type determination and Factory Production Control) and marking of these products are given in EN 15651–5. Chemical containment, cold applied joint sealants for concrete pavements to be used in roads, airfields and sewage treatment plants, perimeter seals and seals in wood floors are excluded. This European Standard does not apply to non-structural sealants in any of non-paste form, to those used in pedestrian walkways. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13238, Reaction to fire tests for building products - Conditioning procedures and general rules for selection of substrates EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using data from reaction to fire tests EN 14187-3, Cold applied joint sealants - Part 3: Test method for the determination of self-levelling properties EN 15651-5:2017, Sealants for non-structural use in joints in buildings and pedestrian walkways - Part 5: Evaluation of conformity and marking EN ISO 291, Plastics - Standard atmospheres for conditioning and testing (ISO 291) EN ISO 868, Plastics and ebonite - Determination of indentation hardness by means of a durometer (Shore hardness) (ISO 868) EN ISO 2811-1:2016, Paints and varnishes - Determination of density - Part 1: Pycnometer method (ISO 2811-1:2016) EN ISO 6927, Buildings and civil engineering works - Sealants - Vocabulary (ISO 6927) EN ISO 7389, Building construction - Jointing products - Determination of elastic recovery of sealants (ISO 7389) EN ISO 7390, Building construction - Jointing products - Determination of resistance to flow of sealants (ISO 7390) EN ISO 8339, Building construction - Sealants - Determination of tensile properties (Extension to break) (ISO 8339) EN ISO 8340, Building construction - Sealants - Determination of tensile properties at maintained extension (ISO 8340) SIST EN 15651-4:2017



EN 15651-4:2017 (E) 6 EN ISO 9047, Building construction - Jointing products - Determination of adhesion/cohesion properties of sealants at variable temperatures (ISO 9047) EN ISO 10563, Building construction - Sealants - Determination of change in mass and volume (ISO 10563) EN ISO 10590, Building construction - Sealants - Determination of tensile properties of sealants at maintained extension after immersion in water (ISO 10590) EN ISO 11358 (all parts), Plastics — Thermographimetry (TG) of polymers — General principles (ISO 11358) EN ISO 11431, Building construction - Jointing products - Determination of adhesion/cohesion properties of sealants after exposure to heat, water and artificial light through glass (ISO 11431) EN ISO 11600:2003, Building construction - Jointing products - Classification and requirements for sealants (ISO 11600:2002) EN ISO 11925-2, Reaction to fire tests - Ignitability of products subjected to direct impingement of flame - Part 2: Single-flame source test (ISO 11925-2) ISO 13640, Building construction — Jointing products — Specifications for test substrates 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 6927 and the following apply. 3.1 reactive sealant mainly curing by chemical reaction, with significant increase of the molecular weight of the main polymer 3.2 cure irreversible transformation of a sealant from a liquid or paste-like state into a hardened or rubber-like solid state 3.3 uncured / wet state of a sealant prior to the above transformation 4 Requirements 4.1 Identification requirements 4.1.1 Short description of the sealant The short description of the non-structural sealant for pedestrian walkways shall include brand name, type (general, chemical, family, one or multi-component e.g. one component Polyurethane sealant in different colours, etc.). The primer shall be stated for the substrate concerned, if relevant (name, chemical type, etc.). SIST EN 15651-4:2017



EN 15651-4:2017 (E) 7 4.1.2 Thermogravimetric test The test shall be carried out in accordance with EN ISO 11358 on the uncured or wet sealant, between 35 °C and 900 °C, temperature slope 10 °C/min, non-oxidative condition (e.g. nitrogen). A single sample shall be used for this test. A single specimen may be tested and there shall be no significant difference between the reference curve and derivative (profile). In the case of a multi-component sealant, each component shall be evaluated (if relevant). 4.1.3 Density 4.1.3.1 Principal A pyknometer is filled with the product under test. The density is calculated from the mass of the product in the pyknometer and the known volume of the pyknometer. 4.1.3.2 Method A test temperature of (23,0 ± 0,5) °C shall be used and the test sample and pyknometer shall be conditioned to this temperature, and it shall be ensured that the temperature variation does not exceed 0,5 °C during testing. The determination of the density shall be in accordance with EN ISO 2811-1:2016 using a suitable 50 cm3 calibrated pyknometer as described in EN ISO 2811-1:2016, 6.1.1. An alternative is the 50 cm3 Hubbard pyknometer as described in ISO 3507. Measurements should be carried out on the uncured or wet sealant and in the case of a multi-component sealant, each component shall be evaluated. At least three samples shall be tested. The specific pyknometer used and the mean value, recorded to two decimal places, shall be declared. The tolerance of the declared values shall be within ± 5 %. 4.1.4 Indentation hardness (Shore hardness) The determination of the indentation hardness shall be in accordance with EN ISO 868. The test shall be performed on the cured sealant. The exact conditions of test shall be defined by the manufacturer (i.e. thickness, cure/drying times and temperature and relative humidity, specific Shore type (A, D…), test time, temperature, etc.). At least three samples shall be tested and five measurements taken per sample. The mean value and tolerances of all measurements, recorded to the nearest unit, shall be declared. 4.2 Conditioning, test procedure and substrates 4.2.1 General When determining the classification of a sealant according to the requirements of this standard, the same conditioning procedure shall be used in all relevant test methods (use only Method A or Method B). For each test method, three test specimens for each substrate shall be tested. The same batch of sealant (and primer, if used) shall be used in all tests. The same substrates (material and surface finish) shall be used in all tests. 4.2.2 Classification 4.2.2.1 General Classes for cold applied elastic sealants for movement joints in floors in building construction are referred to as type: — PW (= pedestrian walkways); — EXT (= exterior application) and INT (= interior application); SIST EN 15651-4:2017



EN 15651-4:2017 (E) 8 — CC (= cold climate). 4.2.2.2 Classification according to the movement capability According to their movement capability, sealants are subdivided into different classes as given in Table 1. Table 1 — Sealant classes Class Elongation % Test amplitude % Movement capability % a 25
100 ±25 25,0 20 60 ±20 20,0 12,5 60 ±12,5 12,5 a For the correct interpretation and application of movement capability to the design of joints, relevant national standards and advisory documents should be considered. 4.2.2.3 Classification according to the secant tensile modulus Sealants of class 25 and class 20 are additionally sub-classified according to their secant tensile modulus (see EN ISO 6927 and EN ISO 11600): — low modulus: code LM; — high modulus: code HM. If the evaluated secant tensile modulus value exceeds the values specified below for either or both temperatures, the sealant shall be classified as high modulus. Specified values (see Tables 2 and 3, second column) are as follows: — 0,4 N/mm2 at + 23 °C; — 0,6 N/mm2 at - 20 °C. The secant modulus shall be the mean value of the three measured values. Round the mean value to one decimal place. EXAMPLE: Measured values 0,43 N/mm2 0,40 N/mm2 0,46 N/mm2 and mean value 0,43 N/mm2. Reported value0,4 N/mm2 . Substrates to be used in all mechanical tests concerned are; mortar M1 or M2 according to ISO 13640 and/or other substrates. SIST EN 15651-4:2017



EN 15651-4:2017 (E) 9 4.2.3 Test procedure The specific test conditions shall be in accordance with Table 2. Table 2 — Specific test conditions
Test method Classes of non-structural sealants for pedestrian walkways elements 25LM 25HM 20LM 20HM 12,5E Elongation a EN ISO 7389 EN ISO 8339 EN ISO 8340 EN ISO 10590 EN ISO 11431 100 % 100 % 60 % 60 % 60 % Amplitude EN ISO 9047 ±25 % ±25 % ±20 % ±20 % ±12,5 % a The value of elongation is given as a percentage of the original width:
elongation % = [(final width – original width) / (original width)] x 100 % Substrates to be used in all mechanical tests concerned shall be mortar M1 or M2 and/or anodised aluminium and/or glass, according to ISO 13640. SIST EN 15651-4:2017



EN 15651-4:2017 (E) 10 4.3 Performance requirements and test methods for non-structural sealants for pedestrian walkways 4.3.1 General The requirements and test methods are specified in Table 3. Table 3 — Summary of characteristics required and classes for sealants in pedestrian walkways Properties Class Test method 25 LM 25 HM 20 LM 20 HM 12,5 E Elastic recovery (%)
· 70
· 70
· 60
· 60
· 40 EN ISO 7389 Tensile properties secant modulus at (23 ± 2) °C (MPa) at (- 20 ± 2) °C (MPa)
¶ 0,4 and
¶ 0,6 > 0,4 or > 0,6
¶ 0,4 and
¶ 0,6 > 0,4 or > 0,6
EN ISO 8339
Tensile properties at maintained extension a NF NF NF NF NF EN ISO 8340 Adhesion/cohesion properties at variable temperatures NF NF NF NF NF EN ISO 9047 Adhesion/cohesion properties at maintained extension after water immersion NF NF NF NF NF EN ISO 10590 Loss of volume non sagging sealant (%)
¶ 10 %
¶ 10 %
¶ 10 %
¶ 10 %
¶ 15 % EN ISO 10563
Loss of volume self-levelling sealants (%)
¶ 10 %
¶ 10 %
¶ 10 %
¶ 10 %
¶ 15 % Adapted EN ISO 10563 See Annex B Resistance to flow for non-sagging sealants (mm)
¶ 3
¶ 3
¶ 3
¶ 3
¶ 5 EN ISO 7390 Sealants with self-levelling properties declared value declared value declared value declared value declared value EN 14187–3 Tear resistance NF NF NF NF NF EN ISO 8340 Modified, see 4.3.5 NF = No Failure a .For exterior use, secant modulus has to be recorded during the EN ISO 8340 test. 4.3.2 Sealants in pedestrian walkways used in cold climates 4.3.2.1 General This test has been developed to demonstrate that elastic sealants for exterior use perform well at lower temperatures than those currently tested at in EN ISO 11600 (e.g. common winter temperatures in Northern Europe). The specific intention is to ensure that the sealant continues to perform at - 30 °C, which is a common winter temperature in cold climate areas. In addition to the requirements given in Table 3, elastic non-structural for sealants in pedestrian walkways required to maintain performance in cold climates (- 30 °C) shall fulfil the requirements given in Table 4. SIST EN 15651-4:2017



EN 15651-4:2017 (E) 11 The classification of the sealant given in Table 3 shall be determined prior to this optional additional test and the corresponding test amplitude shall be applied to this additional test. The designation CC (cold climate) shall be declared for any sealant meeting the requirements of Table 3 and 4. For example, Type PW Class 25LM CC. Mortar M1 or M2 according to ISO 13640 and/or other substrates shall be used. 4.3.2.2 Tensile properties - Secant modulus to EN ISO 8339:— test procedure at (- 30 ± 2) °C The test specimens shall be stored at (- 30 ± 2) °C for at least 4 h before the start of the test. The spacers for the preparation of the test specimens shall be removed and the test specimen placed in the tensile test machine and extended at (- 30 ± 2) °C at a rate of (5,5 ± 0,7) mm/min until rupture occurs. The force/extension diagram shall be recorded. 4.3.2.3 Tensile properties at maintained extension to EN ISO 8340:— test procedure at (- 30 ± 2) °C The test specimens shall be stored at ( « 30 ± 2) °C for at least 4 h before the start of the test. The spacers for the preparation of the test specimens shall be removed and the test specimens placed in the tensile test machine at (- 30 ± 2) °C and extended at a rate of (5,5 ± 0,7) mm/min by 60 % or 100 % of the original width (to 19,2 mm and 24 mm respectively). The separators shall be used to maintain the elongation at (- 30 ± 2) °C for 24 h. The test specimens shall be brought to (23 ± 2) °C. The depth of any loss of adhesion or cohesion shall be measured using a suitable measuring device capable of reading to 0,5 mm. Table 4 — Requirements to be suitable for use in cold climate areas
Classes of sealants in pedestrian walkways used in cold climates
Characteristics 25LM 25HM 20LM 20HM 12,5E Test method Tensile properties:
- Secant modulus MPa
¶ 0,9 NR a
¶ 0,9 NR a NR a 4.3.2.2 Tensile properties at maintained extension - NF b NF b NF b NF b NF b 4.3.2.3 a
NR = Not required. b NF = No failure according to EN ISO 11600. 4.3.3 Resistance to flow for non-sagging sealants The resistance to flow shall be measured according to EN ISO 7390, with the precise test method modified according to the following details. A vertical, anodised aluminium U-profile shall be used with dimensions 20 mm × 10 mm. Testing shall be carried out under two test temperature conditions: a) temperature of (50 ± 2) °C and relative humidity of (50 ± 10) %; b) temperature of (5 ± 2) °C. If the flow exceeds the required value, then the test may be repeated once. 4.3.4 Sealants with self-levelling properties Evaluation according to EN 14187-3. 4.3.5 Tear resistance Evaluation according to EN ISO 8340 modified. Substrates: Mortar M1 or M2 according to ISO 13640 and/or other substrates. SIST EN 15651-4:2017



EN 15651-4:2017 (E) 12 Primer may be used if necessary. The use of primer shall be documented in the classification of the product. Test procedure at (23 ± 2) °C. After conditioning Method A or Method B, the test specimens shall be cut in the centre with a 6 mm broad knife blade or chisel blade through the complete thickness of the sealant (12 mm) (see Figure 1). Afterwards the specimen has to be extended to the double of the movement capability e.g. a sealant with 25 % movement capability shall be extended to 50 % (from 12 mm to 18 mm). An example of an extended sealant with cut is shown in Figure 2. After 24 h elongation, the test specimen will be examined and any tear propagation noted. The position of the cut can be taken from Figure 1. The sealant meets the requirement if the cut in the extended specimen does not exceed 12 mm in the length of the sealant.
NOTE Induced cut 6 mm wide and cut through the whole sealant. Figure 1 — Test specimen with cut (not extended)
Figure 2 — Test specimen with cut (extended) SIST EN 15651-4:2017



EN 15651-4:2017 (E) 13 4.4 Additional performance requirements for exterior applications 4.4.1 General When a sealant does not meet the following requirements (see Table 5), it is not suitable for exterior use. Table 5 — Summary of characteristics required and classes Properties Class Test method 25 LM 25 HM 20 LM 20 HM 12,5 E Adhesion/cohesion properties after water immersion b NF change of secant modulus:
¶ 50 % NF change of secant modulus:
¶ 50 % NF change of secant modulus:
¶ 50 % NF change of secant modulus:
¶ 50 % NF change of secant modulus:
¶ 50 % EN ISO 10590 modified, with 28 days water immersion instead of 4 days
Adhesion/cohesion properties after salt water immersion a NF NF NF NF NF EN ISO 10590 modified With 28 days salt water immersion instead of 4 days water immersion (10 % NaCl- solution) Artificial weathering by UV-radiation NF NF NF NF NF Modified EN ISO 11431
NF = no failure a If necessary, other chemicals can be used according to specific application requirements. b Compared with the value recorded during the EN ISO 8340 test (See note in Table 3). 4.4.2 Artificial weathering by UV-radiation Joint sealants have to be sufficiently resistant to weathering by outdoor use. This standard is achieved when the change of the tensile strength value is not bigger than 20 % according to the test mentioned below after the exposure with artificial weathering. The tensile strength value at test elongation shall be calculated and the change shall be presented comp
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Tesnilne mase za nekonstrukcijske stike v stavbah in na površinah za pešce - 4. del: Tesnilne mase za površine za pešceFugendichtstoffe für nicht tragende Anwendungen in Gebäuden und Fußgängerwegen - Teil 4: Fugendichtstoffe für FußgängerwegeMastics pour joints pour des usages non structuraux dans les constructions immobilières et pour chemins piétonniers - Partie 4 : Mastics pour chemins piétonniersSealants for non-structural use in joints in buildings and pedestrian walkways - Part 4: Sealants for pedestrian walkways91.100.50Veziva. Tesnilni materialiBinders. Sealing materialsICS:Ta slovenski standard je istoveten z:FprEN 15651-4kSIST FprEN 15651-4:2016en,fr,de01-november-2016kSIST FprEN 15651-4:2016SLOVENSKI
STANDARD



kSIST FprEN 15651-4:2016



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
FINAL DRAFT
FprEN 15651-4
September
t r s x ICS
{ sä s r rä w r Will supersede EN
s w x w sæ vã t r s tEnglish Version
Sealants for nonæstructural use in joints in buildings and pedestrian walkways æ Part
vã Sealants for pedestrian walkways Mastics pour joints pour des usages non structuraux dans les constructions immobilières et pour chemins piétonniers æ Partie
v ã Mastics pour chemins piétonniers
Fugendichtstoffe für nicht tragende Anwendungen in Gebäuden und Fußgängerwegen æ Teil
vã Fugendichtstoffe für Fußgängerwege This draft European Standard is submitted to CEN members for unique acceptance procedureä It has been drawn up by the
If this draft becomes a European Standardá CEN members are bounwhich stipulate the conditions for giving this European Standard the status of a national standard without any alterationä
This draft European Standard was established by CEN in three ofer language made by translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
Recipients of this draft are invited to submitá with their commentsá notification of any relevant patent rights of which they are aware and to provide supporting documentationä
Warning ã This document is not a European Standardä It is distributed for review and commentsä It is subject to change without notice and shall not be referred to as a European Standardä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
9
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä FprEN
s w x w sæ vã t r s x EkSIST FprEN 15651-4:2016



FprEN 15651-4:2016 (E) 2 Contents Page European foreword . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 6 4 Requirements . 6 4.1 Identification requirements . 6 4.1.1 Short description of the sealant. 6 4.1.2 Thermogravimetric test . 7 4.1.3 Density . 7 4.1.4 Indentation hardness (Shore hardness). 7 4.2 Conditioning, test procedure and substrates . 7 4.2.1 General . 7 4.2.2 Classification . 7 4.2.3 Test procedure . 9 4.3 Performance requirements and test methods for non-structural sealants for pedestrian walkways . 10 4.3.1 General . 10 4.3.2 Sealants in pedestrian walkways used in cold climates . 10 4.3.3 Resistance to flow for non-sagging sealants . 11 4.3.4 Sealants with self-levelling properties . 11 4.3.5 Tear resistance . 11 4.4 Additional performance requirements for exterior applications . 13 4.4.1 General . 13 4.4.2 Artificial weathering by UV-radiation . 13 4.5 Release of dangerous substances . 14 4.6 Reaction to fire . 14 4.6.1 General . 14 4.6.2 Mounting and fixing conditions for test samples . 14 5 Durability . 16 6 Sampling . 16 7 Assessment and verification of constancy of performance . 16 7.1 General . 16 7.2 Product type determination . 16 7.3 Factory production control . 16 8 Marking and labelling . 16 Annex A (informative)
Example on the frequency of tests for factory production control. 17 Annex B (normative)
Determination of the change of volume of self-levelling cold applied joint sealants . 18 B.1 Principle . 18 B.2 Apparatus and materials . 18 B.3 Preparation of test specimens. 18 B.4 Test procedure . 18 kSIST FprEN 15651-4:2016



FprEN 15651-4:2016(E) 3 B.5 Calculation and expression of results . 19 B.5.1 Change in mass . 19 B.5.2 Change in volume . 19 Annex ZA (informative)
Relationship of this European Standard with Regulation (EU) No.305/2011 . 20 ZA.1 Scope and relevant characteristics . 20 ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP) . 21 ZA.3 Assignment of AVCP tasks . 21 Bibliography . 24
kSIST FprEN 15651-4:2016



FprEN 15651-4:2016 (E) 4 European foreword This document (FprEN 15651-4:2016) has been prepared by Technical Committee CEN/TC 349 “Sealants for joints in building construction”, the secretariat of which is held by AFNOR. This document is currently submitted to the Unique Acceptance Procedure. This document supersedes EN 15651-4:2012. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports basic work requirements of EU Regulation. For relationship with EU Regulation, see informative Annex ZA, which is an integral part of this document. This document is one of the product European Standards within the framework series of EN 15651 on Sealants for non-structural use in joints in buildings and pedestrian walkways, as follows: — Part 1: Sealants for facade elements, — Part 2: Sealants for glazing, — Part 3: Sealants for sanitary joints, — Part 4: Sealants for pedestrian walkways (this document), — Part 5: Assessment and verification of constancy of performance, marking and labelling. The following significant technical changes have been implemented in this new edition: — Clause 4.1.3 and Clause 5 have been improved; — Clause 7 and Annex ZA have been changed in accordance with the regulation (EU) No.305/2011. kSIST FprEN 15651-4:2016



FprEN 15651-4:2016(E) 5 1 Scope This European Standard specifies definitions and requirements for cold applied non-structural elastic sealants used for movement joints in floors in building construction for interior and exterior use. Areas of application are: floor joints designed for pedestrian walkways, public areas, movement joints between concrete slabs, areas with pedestrian load, areas used with trolleys, walkable floors, balconies, terraces, warehouses. NOTE Provisions on assessment and verification of constancy of performance - AVCP (i.e. Product type determination and Factory Production Control) and marking of these products are given in EN 15651–5. Chemical containment, cold applied joint sealants for concrete pavements to be used in roads, airfields and sewage treatment plants, perimeter seals and seals in wood floors are excluded. This European Standard does not apply to non-structural sealants in any of non-paste form, to those used in pedestrian walkways. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13238, Reaction to fire tests for building products - Conditioning procedures and general rules for selection of substrates EN 13501-1, Fire classification of construction products and building elements — Part 1: Classification using data from reaction to fire tests EN 14187-3, Cold applied joint sealants - Part 3: Test method for the determination of self-levelling properties FprEN 15651-5:2016, Sealants for non-structural use in joints in buildings and pedestrian walkways - Part 5: Evaluation of conformity and marking EN ISO 291, Plastics - Standard atmospheres for conditioning and testing (ISO 291) EN ISO 868, Plastics and ebonite - Determination of indentation hardness by means of a durometer (Shore hardness) (ISO 868) EN ISO 2811-1:2016, Paints and varnishes - Determination of density - Part 1: Pyknometer method (ISO 2811-1:2016) EN ISO 6927, Buildings and civil engineering works - Sealants - Vocabulary (ISO 6927) EN ISO 7389, Building construction - Jointing products - Determination of elastic recovery of sealants (ISO 7389) EN ISO 7390, Building construction - Jointing products - Determination of resistance to flow of sealants (ISO 7390) EN ISO 8339, Building construction - Sealants - Determination of tensile properties (Extension to break) (ISO 8339) EN ISO 8340, Building construction - Sealants - Determination of tensile properties at maintained extension (ISO 8340) kSIST FprEN 15651-4:2016



FprEN 15651-4:2016 (E) 6 EN ISO 9047, Building construction - Jointing products - Determination of adhesion/cohesion properties of sealants at variable temperatures (ISO 9047) EN ISO 10563, Building construction - Sealants - Determination of change in mass and volume (ISO 10563) EN ISO 10590, Building construction - Sealants - Determination of tensile properties of sealants at maintained extension after immersion in water (ISO 10590) EN ISO 11358 (all parts), Plastics — Thermographimetry (TG) of polymers — General principles (ISO 11358) EN ISO 11431, Building construction - Jointing products - Determination of adhesion/cohesion properties of sealants after exposure to heat, water and artificial light through glass (ISO 11431) EN ISO 11600:2003, Building construction - Jointing products - Classification and requirements for sealants (ISO 11600:2002) EN ISO 11925-2, Reaction to fire tests - Ignitability of products subjected to direct impingement of flame - Part 2: Single-flame source test (ISO 11925-2) ISO 13640, Building construction — Jointing products — Specifications for test substrates 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 6927 and the following apply. 3.1 reactive sealant mainly curing by chemical reaction, with significant increase of the molecular weight of the main polymer 3.2 cure irreversible transformation of a sealant from a liquid or paste-like state into a hardened or rubber-like solid state 3.3 uncured / wet state of a sealant prior to the above transformation 4 Requirements 4.1 Identification requirements 4.1.1 Short description of the sealant The short description of the non-structural sealant for pedestrian walkways shall include brand name, type (general, chemical, family, one or multi-component e.g. one component Polyurethane sealant in different colours, etc.). The primer shall be stated for the substrate concerned, if relevant (name, chemical type, etc.). kSIST FprEN 15651-4:2016



FprEN 15651-4:2016(E) 7 4.1.2 Thermogravimetric test The test shall be carried out in accordance with EN ISO 11358 on the uncured or wet sealant, between 35 °C and 900 °C, temperature slope 10 °C/min, non-oxidative condition (e.g. nitrogen). A single sample shall be used for this test. A single specimen may be tested and there shall be no significant difference between the reference curve and derivative (profile). In the case of a multi-component sealant, each component shall be evaluated (if relevant). 4.1.3 Density 4.1.3.1 Principal A pyknometer is filled with the product under test. The density is calculated from the mass of the product in the pyknometer and the known volume of the pyknometer. 4.1.3.2 Method A test temperature of (23,0 ± 0,5) °C shall be used and the test sample and pyknometer shall be conditioned to this temperature, and it shall be ensured that the temperature variation does not exceed 0,5 °C during testing. The determination of the density shall be in accordance with EN ISO 2811-1:2016 using a suitable 50 cm3 calibrated pyknometer as described in EN ISO 2811-1:2016, 6.1.1. An alternative is the 50 cm3 Hubbard pyknometer as described in ISO 3507. Measurements should be carried out on the uncured or wet sealant and in the case of a multi-component sealant, each component shall be evaluated. At least three samples shall be tested. The specific pyknometer used and the mean value, recorded to two decimal places, shall be declared. The tolerance of the declared values shall be within ± 5 %. 4.1.4 Indentation hardness (Shore hardness) The determination of the indentation hardness shall be in accordance with EN ISO 868. The test shall be performed on the cured sealant. The exact conditions of test shall be defined by the manufacturer (i.e. thickness, cure/drying times and temperature and relative humidity, specific Shore type (A, D…), test time, temperature, etc.). At least three samples shall be tested and five measurements taken per sample. The mean value and tolerances of all measurements, recorded to the nearest unit, shall be declared. 4.2 Conditioning, test procedure and substrates 4.2.1 General When determining the classification of a sealant according to the requirements of this standard, the same conditioning procedure shall be used in all relevant test methods (use only Method A or Method B). For each test method, three test specimens for each substrate shall be tested. The same batch of sealant (and primer, if used) shall be used in all tests. The same substrates (material and surface finish) shall be used in all tests. 4.2.2 Classification 4.2.2.1 General Classes for cold applied elastic sealants for movement joints in floors in building construction are referred to as type: — PW (= pedestrian walkways); — EXT (= exterior application) and INT (= interior application); kSIST FprEN 15651-4:2016



FprEN 15651-4:2016 (E) 8 — CC (= cold climate). 4.2.2.2 Classification according to the movement capability According to their movement capability, sealants are subdivided into different classes as given in Table 1. Table 1 — Sealant classes Class Elongation % Test amplitude % Movement capability % a 25
100 ±25 25,0 20 60 ±20 20,0 12,5 60 ±12,5 12,5 a For the correct interpretation and application of movement capability to the design of joints, relevant national standards and advisory documents should be considered. 4.2.2.3 Classification according to the secant tensile modulus Sealants of class 25 and class 20 are additionally sub-classified according to their secant tensile modulus (see EN ISO 6927 and EN ISO 11600): — low modulus: code LM; — high modulus: code HM. If the evaluated secant tensile modulus value exceeds the values specified below for either or both temperatures, the sealant shall be classified as high modulus. Specified values (see Tables 2 and 3, second column) are as follows: — 0,4 N/mm2 at + 23 °C; — 0,6 N/mm2 at - 20 °C. The secant modulus shall be the mean value of the three measured values. Round the mean value to one decimal place. EXAMPLE: Measured values 0,43 N/mm2 0,40 N/mm2 0,46 N/mm2 and mean value 0,43 N/mm2. Reported value0,4 N/mm2 . Substrates to be used in all mechanical tests concerned are; mortar M1 or M2 according to ISO 13640 and/or other substrates. kSIST FprEN 15651-4:2016



FprEN 15651-4:2016(E) 9 4.2.3 Test procedure The specific test conditions shall be in accordance with Table 2. Table 2 — Specific test conditions
Test method Classes of non-structural sealants for pedestrian walkways elements 25LM 25HM 20LM 20HM 12,5E Elongation a EN ISO 7389 EN ISO 8339 EN ISO 8340 EN ISO 10590 EN ISO 11431 100 % 100 % 60 % 60 % 60 % Amplitude EN ISO 9047 ±25 % ±25 % ±20 % ±20 % ±12,5 % a The value of elongation is given as a percentage of the original width:
elongation % = [(final width – original width) / (original width)] x 100 % Substrates to be used in all mechanical tests concerned shall be mortar M1 or M2 and/or anodised aluminium and/or glass, according to ISO 13640. kSIST FprEN 15651-4:2016



FprEN 15651-4:2016 (E) 10 4.3 Performance requirements and test methods for non-structural sealants for pedestrian walkways 4.3.1 General The requirements and test methods are specified in Table 3. Table 3 — Summary of characteristics required and classes for sealants in pedestrian walkways Properties Class Test method 25 LM 25 HM 20 LM 20 HM 12,5 E Elastic recovery (%)
· 70
· 70
· 60
· 60
· 40 EN ISO 7389 Tensile properties secant modulus at (23 ± 2) °C (MPa) at (- 20 ± 2) °C (MPa)
¶ 0,4 and
¶ 0,6 > 0,4 or > 0,6
¶ 0,4 and
¶ 0,6 > 0,4 or > 0,6
EN ISO 8339
Tensile properties at maintained extension a NF NF NF NF NF EN ISO 8340 Adhesion/cohesion properties at variable temperatures NF NF NF NF NF EN ISO 9047 Adhesion/cohesion properties at maintained extension after water immersion NF NF NF NF NF EN ISO 10590 Loss of volume non sagging sealant (%)
¶ 10 %
¶ 10 % 10 %
¶ 10 %
¶ 15 % EN ISO 10563
Loss of volume self-levelling sealants (%)
¶ 10 %
¶ 10 %
¶ 10 %
¶ 10 %
¶ 15 % Adapted EN ISO 10563 See Annex B Resistance to flow for non-sagging sealants (mm)
¶ 3
¶ 3
¶ 3
¶ 3
¶ 5 EN ISO 7390 Sealants with self-levelling properties declared value declared value declared value declared value declared value EN 14187–3 Tear resistance NF NF NF NF NF EN ISO 8340 Modified, see 4.3.5 NF = No Failure a .For exterior use, secant modulus has to be recorded during the EN ISO 8340 test. 4.3.2 Sealants in pedestrian walkways used in cold climates 4.3.2.1 General This test has been developed to demonstrate that elastic sealants for exterior use perform well at lower temperatures than those currently tested at in EN ISO 11600 (e.g. common winter temperatures in Northern Europe). The specific intention is to ensure that the sealant continues to perform at - 30 °C, which is a common winter temperature in cold climate areas. In addition to the requirements given in Table 3, elastic non-structural for sealants in pedestrian walkways required to maintain performance in cold climates (- 30 °C) shall fulfil the requirements given in Table 4. kSIST FprEN 15651-4:2016



FprEN 15651-4:2016(E) 11 The classification of the sealant given in Table 3 shall be determined prior to this optional additional test and the corresponding test amplitude shall be applied to this additional test. The designation CC (cold climate) shall be declared for any sealant meeting the requirements of Table 3 and 4. For example, Type PW Class 25LM CC. Mortar M1 or M2 according to ISO 13640 and/or other substrates shall be used. 4.3.2.2 Tensile properties - Secant modulus to EN ISO 8339:— test procedure at (- 30 ± 2) °C The test specimens shall be stored at (- 30 ± 2) °C for at least 4 h before the start of the test. The spacers for the preparation of the test specimens shall be removed and the test specimen placed in the tensile test machine and extended at (- 30 ± 2) °C at a rate of (5,5 ± 0,7) mm/min until rupture occurs. The force/extension diagram shall be recorded. 4.3.2.3 Tensile properties at maintained extension to EN ISO 8340:— test procedure at (- 30 ± 2) °C The test specimens shall be stored at ( « 30 ± 2) °C for at least 4 h before the start of the test. The spacers for the preparation of the test specimens shall be removed and the test specimens placed in the tensile test machine at (- 30 ± 2) °C and extended at a rate of (5,5 ± 0,7) mm/min by 60 % or 100 % of the original width (to 19,2 mm and 24 mm respectively). The separators shall be used to maintain the elongation at (- 30 ± 2) °C for 24 h. The test specimens shall be brought to (23 ± 2) °C. The depth of any loss of adhesion or cohesion shall be measured using a suitable measuring device capable of reading to 0,5 mm. Table 4 — Requirements to be suitable for use in cold climate areas
Classes of sealants in pedestrian walkways used in cold climates
Characteristics 25LM 25HM 20LM 20HM 12,5E Test method Tensile properties:
- Secant modulus MPa
¶ 0,9 NR a
¶ 0,9 NR a NR a 4.3.2.2 Tensile properties at maintained extension - NF b NF b NF b NF b NF b 4.3.2.3 a
NR = Not required. b NF = No failure according to EN ISO 11600. 4.3.3 Resistance to flow for non-sagging sealants The resistance to flow shall be measured according to EN ISO 7390, with the precise test method modified according to the following details. A vertical, anodised aluminium U-profile shall be used with dimensions 20 mm × 10 mm. Testing shall be carried out under two test temperature conditions: a) temperature of (50 ± 2) °C and relative humidity of (50 ± 10) %; b) temperature of (5 ± 2) °C. If the flow exceeds the required value, then the test may be repeated once. 4.3.4 Sealants with self-levelling properties Evaluation according to EN 14187-3. 4.3.5 Tear resistance Evaluation according to EN ISO 8340 modified. Substrates: Mortar M1 or M2 according to ISO 13640 and/or other substrates. kSIST FprEN 15651-4:2016



FprEN 15651-4:2016 (E) 12 Primer may be used if necessary. The use of primer shall be documented in the classification of the product. Test procedure at (23 ± 2) °C. After conditioning Method A or Method B, the test specimens shall be cut in the centre with a 6 mm broad knife blade or chisel blade through the complete thickness of the sealant (12 mm) (see Figure 1). Afterwards the specimen has to be extended to the double of the movement capability e.g. a sealant with 25 % movement capability shall be extended to 50 % (from 12 mm to 18 mm). An example of an extended sealant with cut is shown in Figure 2. After 24 h elongation, the test specimen will be examined and any tear propagation noted. The position of the cut can be taken from Figure 1. The sealant meets the requirement if the cut in the extended specimen does not exceed 12 mm in the length of the sealant.
NOTE Induced cut 6 mm wide and cut through the whole sealant. Figure 1 — Test specimen with cut (not extended)
Figure 2 — Test specimen with cut (extended) kSIST FprEN 15651-4:2016



FprEN 15651-4:2016(E) 13 4.4 Additional performance requirements for exterior applications 4.4.1 General When a sealant does not meet the following requirements (see Table 5), it is not suitable for exterior use. Table 5 — Summary of characteristics required and classes Properties Class Test method 25 LM 25 HM 20 LM 20 HM 12,5 E Adhesion/cohesion properties after water immersion b NF change of secant modulus:
¶ 50 % NF change of secant modulus:
¶ 50 % NF change of secant modulus:
¶ 50 % NF change of secant modulus:
¶ 50 % NF change of secant modulus:
¶ 50 % EN ISO 10590 modified, with 28 days water immersion instead of 4 days
Adhesion/cohesion properties after salt water immersion a NF NF NF NF NF EN ISO 10590 modified With 28 days salt water immersion instead of 4 days water immersion (10 % NaCl- solution) Artificial weathering by UV-radiation NF NF NF NF NF Modified EN ISO 11431
NF = no failure a If necessary, other chemicals can be used according to specific application requirements. b Compared with the value recorded during the EN ISO 8340 test (See note in Table 3). 4.4.2 Artificial weathering by UV-radiation Joint sealants have to be sufficiently resistant to weathering by outdoor use. This standard is achieved when the change of the tensile strength value is not bigger than 20 % according to the test mentioned below after the exposure with artificial weathering. The tensile strength value at test elongation shall be calculated and the change shall be presented compared to untreated test specimen. The weathering test has to be performed according to EN ISO 11431. The positioning of the test specimen is shown in Figure 3. A contact material is used instead of glass concrete and also the direction of light exposure has to be changed to the surface of the sealant.
Figure 3 — Test specimen for artificial weathering by UV-radiation After exposure with artificial weathering and water, the test specimens are stored for 24 h at standard climate (23 °C, 5
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