EN 998-2:2010

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Specifikacija malt za zidanje - 2. del: Malta za zidanjeFestlegungen für Mörtel im Mauerwerksbau - Teil 2: MauermörtelDéfinitions et spécifications des mortiers pour maçonnerie - Partie 2: Mortiers de montage des éléments de maçonnerieSpecification for mortar for masonry - Part 2: Masonry mortar91.100.10Cement. Mavec. Apno. MaltaCement. Gypsum. Lime. MortarICS:Ta slovenski standard je istoveten z:EN 998-2:2010SIST EN 998-2:2010en,fr,de01-december-2010SIST EN 998-2:2010SLOVENSKI
STANDARDSIST EN 998-2:20041DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 998-2
September 2010 ICS 91.100.10 Supersedes EN 998-2:2003English Version
Specification for mortar for masonry - Part 2: Masonry mortar
Définitions et spécifications des mortiers pour maçonnerie -Partie 2: Mortiers de montage des éléments de maçonnerie Festlegungen für Mörtel im Mauerwerksbau - Teil 2: Mauermörtel This European Standard was approved by CEN on 12 August 2010.
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 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 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 998-2:2010: ESIST EN 998-2:2010

Sampling for initial type testing and independent testing of consignments . 16A.1 General . 16SIST EN 998-2:2010

Use of masonry units and masonry mortar . 17Annex C (normative)
Characteristic initial shear strength of designed masonry mortars . 19Annex ZA (informative)
Clauses of this European Standard addressing the provisions of EU Construction Products Directive . 20Bibliography . 29 SIST EN 998-2:2010

When the masonry mortar is sampled from a consignment in accordance with EN 1015-2 and tested in accordance with EN 1015-11 the compressive strength shall not be less than the declared compressive strength or the declared compressive strength class. It shall be declared if the air-lime content calculated as calcium hydroxide Ca(OH)2 is equal to or higher than 50 % of the total amount of binder mass. 5.4.2 Bond strength For designed masonry mortars intended to be used in elements subjected to structural requirements the bond strength of the mortar in combination with a masonry unit shall be declared in terms of the characteristic initial shear strength. The declaration may be made either on the basis of tests as a) below or tabulated values as b) below. The manufacturer shall declare the basis for his declaration. a) Declaration based on tests The characteristic initial shear strength of the mortar in combination with a specific type of unit in accordance with EN 771 may be based on tests on mortar sampled from a consignment in accordance with EN 1015-2 and tested with the relevant unit in accordance with EN 1052-3. The characteristic initial shear strength shall not be less than the declared value. b) Declaration based on tabulated values When no declaration is made under a) the characteristic initial shear strength of the mortar in combination with a range of unit types shall be declared by reference to Annex C. NOTE 1 Bond strength depends on the mortar, the masonry unit, its moisture content and the workmanship. NOTE 2 Until a direct method of test for bond strength is available the test for initial shear strength should be used. 5.4.3 Water absorption For masonry mortars intended to be used in external elements and exposed directly to the weather, the water absorption shall be declared by the manufacturer. When sampled from a consignment in accordance with EN 1015-2 and tested in accordance with EN 1015-18, the water absorption shall not be higher than the declared value. 5.4.4 Water vapour permeability For masonry mortars intended to be used in external elements, the water vapour permeability shall be declared by the manufacturer by reference to EN 1745:2002, Table A.12 giving tabulated values for water vapour diffusion coefficient for mortar. SIST EN 998-2:2010
...