1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 998-2:2010Specification for mortar for masonryPart 2: Masonry mortarIncorporating corrigendum July 2011Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/09/2011 09:
2、21, Uncontrolled Copy, (c) BSIBS EN 998-2:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 998-2:2010. It supersedes BS EN 998-2:2003, which is withdrawn.Issues have arisen over the content and applicability of the National Annex, which is currently being re
3、vised. It is recommended that users of the document consider the interim introduction to the annex prior to using the document.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e B / 5 1 9 / 2 , M o r t a r .A list of organizations represented on this committ
4、ee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011 ISBN 978 0 580 75961 1ICS 91.100.10 Compliance with a British Standard cannot confer immunity from legal
5、 obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2011.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e d31 July 2011 National Annex NA re-introducedLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDA
6、RDS, 13/09/2011 09:21, Uncontrolled Copy, (c) BSIEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE 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 Dfinitions et spcifications des mortiers pour maonnerie -Part
7、ie 2: Mortiers de montage des lments de maonnerieFestlegungen fr Mrtel im Mauerwerksbau - Teil 2: Mauermrtel 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
8、 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,
9、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, Cro
10、atia, 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 STANDARD
11、IZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR 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: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHIN
12、A STANDARDS, 13/09/2011 09:21, Uncontrolled Copy, (c) BSIEN 998-2:2010 (E) 2 Contents Page Foreword . 4Introduction 51 Scope 62 Normative references . 63 Terms and definitions . 74 Materials . 85 Requirements 95.1 General . 95.2 Properties of fresh mortar 95.2.1 Workable life 95.2.2 Chloride content
13、 95.2.3 Air content . 95.3 Proportion of constituents . 95.4 Properties of hardened mortar 95.4.1 Compressive strength 9 5.4.2 Bond strength 105.4.3 Water absorption . 105.4.4 Water vapour permeability . 105.4.5 Density (dry hardened mortar) 115.4.6 Thermal conductivity 115.4.7 Durability 115.5 Addi
14、tional requirements for thin layer mortars . 115.5.1 General . 115.5.2 Aggregates 115.5.3 Correction time 115.6 Reaction to fire 115.7 Mixing of mortar on site . 126 Designation of masonry mortar . 127 Marking and labelling . 138 Evaluation of conformity 138.1 General . 138.2 Initial type testing, I
15、TT 138.2.1 Sampling 138.2.2 Reference test . 138.2.3 Repeating of initial type test 148.2.4 Recording 148.2.5 Application of test methods . 148.3 Factory Production Control, FPC 148.3.1 General . 148.3.2 Process control . 148.3.3 Finished product conformity . 158.3.4 Statistical techniques . 158.3.5
16、 Traceability marking and stock control of products 158.3.6 Non conforming products 15Annex A (normative) Sampling for initial type testing and independent testing of consignments 16A.1 General . 16BS EN 998-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/09/2011 09:21, Uncontrolled
17、Copy, (c) BSIEN 998-2:2010 (E) 3 A.2 Sampling procedure . 16Annex B (informative) 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 o
18、f EU Construction Products Directive . 20Bibliography . 29BS EN 998-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/09/2011 09:21, Uncontrolled Copy, (c) BSIEN 998-2:2010 (E) 4 Foreword This document (EN 998-2:2010) has been prepared by Technical Committee CEN/TC 125 “Masonry“, the S
19、ecretariat of which is held by BSI. 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 March 2011, and conflicting national standards shall be withdrawn at the latest by March 2011. Attention is draw
20、n 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 supersedes EN 998-2:2003. The main technical changes compared to the previous edition are
21、 in relation to thermal conductivity, where the basis for the declared value has been specified, and in relation to evaluation of conformity, where more details have been given. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Associ
22、ation and supports the essential requirements of the EU Construction Products Directive (89/106/EEC). It also takes into account the general rules for reinforced and unreinforced masonry in Eurocode 6. For relationship with EU Directive(s), see informative Annex ZA which is an integral part of this
23、document. EN 998 Specification for mortar for masonry consists of: Part 1: Rendering and plastering mortar. Part 2: Masonry mortar. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austri
24、a, 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 the United Kingdom. BS
25、 EN 998-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/09/2011 09:21, Uncontrolled Copy, (c) BSIEN 998-2:2010 (E) 5 Introduction The properties required of a mortar are related to its use. They are considered in two groups viz.: those relating to the fresh, unhardened mortar and tho
26、se to the hardened mortar. To support the aim of achieving a performance-related standard, as far as practicable, the standard refers only to the properties of the product and not to its method of manufacture, except where this is unavoidable in the description of the characteristics of the product.
27、 BS EN 998-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/09/2011 09:21, Uncontrolled Copy, (c) BSIEN 998-2:2010 (E) 6 1 Scope This European Standard specifies requirements for factory made masonry mortars (bedding, jointing and pointing) for use in masonry walls, columns and partit
28、ions (e.g. facing and rendered masonry, load bearing or non-load bearing masonry structures for building and civil engineering). This European Standard defines for fresh mortars the performance related to workable life, chloride content, air content, density and correction time (for thin-layer morta
29、rs only). For hardened mortars it defines e.g. performances related to compressive strength, bond strength, density measured according to the corresponding test methods contained in separate European Standards. This European Standard provides for the evaluation of conformity of the product to this E
30、uropean Standard. The marking requirement for products covered by this European Standard is included. This European Standard covers masonry mortars defined in Clause 3 with the exception of site made mortars. However, this European Standard or part of this European Standard may be used in conjunctio
31、n with codes of applications and national specifications covering site made mortars. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of t
32、he referenced document (including any amendments) applies. EN 771 (all parts), Specification for masonry units EN 1015-1, Methods of test for mortar for masonry Part 1: Determination of particle size distribution (by sieve analysis) EN 1015-2, Methods of test for mortar for masonry Part 2: Bulk samp
33、ling of mortars and preparation of test mortars EN 1015-7, Methods of test for mortar for masonry Part 7: Determination of air content of fresh mortar EN 1015-9, Methods of test for mortar for masonry Part 9: Determination of workable life and correction time of fresh mortar EN 1015-10, Methods of t
34、est for mortar for masonry Part 10: Determination of dry bulk density of hardened mortar EN 1015-11, Methods of test for mortar for masonry Part 11: Determination of flexural and compressive strength of hardened mortar EN 1015-17, Methods of test for mortar for masonry Part 17: Determination of wate
35、r-soluble chloride content of fresh mortars EN 1015-18, Methods of test for mortar for masonry Part 18: Determination of water absorption coefficient due to capillary action of hardened mortar EN 1745:2002, Masonry and masonry products Methods for determining design thermal values EN 13501-1, Fire c
36、lassification of construction products and building elements Part 1: Classification using test data from reaction to fire tests BS EN 998-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/09/2011 09:21, Uncontrolled Copy, (c) BSIEN 998-2:2010 (E) 7 3 Terms and definitions For the purpo
37、ses of this document, the following terms and definitions apply. 3.1 masonry mortar mix of one or more inorganic binders, aggregates, water, and sometimes additions and/or admixtures for bedding, jointing and pointing of masonry 3.1.1 fresh masonry mortar mortar completely mixed and ready for use 3.
38、2 Type of masonry mortar, defined according to concept 3.2.1 designed masonry mortar mortar whose composition and manufacturing method is chosen by the producer in order to achieve specified properties (performance concept) 3.2.2 prescribed masonry mortar mortar made in predetermined proportions, th
39、e properties of which are assumed from the stated proportion of the constituents (recipe concept) 3.3 Type of masonry mortar, defined according to properties and/or use 3.3.1 general purpose masonry mortar (G) masonry mortar without special characteristics 3.3.2 thin layer masonry mortar (T) designe
40、d masonry mortar with a maximum aggregate size less than or equal to a prescribed figure (see 5.5.2) 3.3.3 lightweight masonry mortar (L) designed masonry mortar with a dry hardened density below a prescribed figure (see 5.4.5) 3.4 Type of masonry mortar, defined according to the mode of manufacture
41、 3.4.1 factory made masonry mortar mortar batched and mixed in a factory NOTE It can be “dry mortar“ which is ready-mixed, only requiring the addition of water or “wet mortar“ which is supplied ready for use. 3.4.2 semi-finished factory made masonry mortar mortar described in either 3.4.2.1 or 3.4.2
42、.2 3.4.2.1 prebatched masonry mortar mortar whose constituents are wholly batched in a factory, supplied to the building site and mixed there according to the manufacturers specification and conditions BS EN 998-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/09/2011 09:21, Uncontrol
43、led Copy, (c) BSIEN 998-2:2010 (E) 8 3.4.2.2 premixed lime-sand- masonry mortar mortar whose constituents are wholly batched and mixed in a factory, supplied to the building site where further constituents specified or provided by the factory are added (e.g. cement) 3.4.3 site-made masonry mortar mo
44、rtar composed of individual constituents batched and mixed on the building site 3.5 binder material used to hold solid particles together in a coherent mass, e.g. cement, building lime 3.6 aggregate granular material that does not contribute to the hardening reaction of the mortar 3.7 admixture mate
45、rial added in small quantities to produce specified modifications to the properties 3.8 addition finely divided inorganic material (which is not an aggregate or binder) that can be added to mortar in order to improve or achieve special properties 3.9 bond strength adhesion perpendicular to the bed b
46、etween the masonry mortar and the masonry unit 3.10 declared value value that a manufacturer is confident in achieving, bearing in mind the precision of test and variability of process 3.11 masonry subjected to severe exposure masonry or elements of masonry which are subjected to saturation with wat
47、er (driving rain, ground water) combined with frequent freeze/thaw-cycling due to climatic conditions, and absence of protective features 3.12 masonry subjected to moderate exposure masonry or elements of masonry which are exposed to moisture and freeze/thaw-cycling, excluding constructions subjecte
48、d to severe exposure 3.13 masonry subjected to passive exposure masonry or elements of masonry which are not intended to be exposed to moisture and freezing conditions 4 Materials Raw materials shall have characteristics permitting the finished product to conform to the requirements of this European
49、 Standard. The manufacturer shall keep records of how suitability of materials is established. BS EN 998-2:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 13/09/2011 09:21, Uncontrolled Copy, (c) BSIEN 998-2:2010 (E) 9 5 Requirements 5.1 General The requirements and properties specified in this European Standard shall be defined in terms of the test methods and other procedures referred to in this European Standard. The conformity c
