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BS EN 998-2:2016

BS EN 998-2:2016

$142.49

Specification for mortar for masonry – Masonry mortar

Published By Publication Date Number of Pages
BSI 2016 36
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This European Standard specifies requirements for factory-made masonry mortars (bedding, jointing and pointing) for use in masonry walls, columns and partitions (e.g. facing and rendered masonry, load bearing or non-load bearing masonry structures for buildings and civil engineering works). This European Standard defines for fresh mortar the performance related to workable life, chloride content, air content, density and correction time (for thin-layer mortar only). For hardened mortar 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 assessment and verification of constancy of performance (AVCP) of the product to this European 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 mortar. However, this European Standard or part of this European Standard may be used in conjunction with codes of application and national specifications covering site made mortar.

PDF Catalog

PDF Pages PDF Title
4 Contents Page
6 European foreword
8 Introduction
9 1 Scope
2 Normative references
10 3 Terms and definitions
12 4 Materials
5 Product characteristics
5.1 General
13 5.2 Characteristics of fresh mortar
5.2.1 Workable life
5.2.2 Chloride content
5.2.3 Air content
5.3 Proportion of constituents
5.4 Characteristics of hardened mortar
5.4.1 Compressive strength
Table 1 — Mortar classes
14 5.4.2 Bond strength
5.4.2.1 Shear bond strength
5.4.2.2 Flexural bond strength
15 5.4.3 Water absorption
5.4.4 Water vapour permeability
5.4.5 Density (dry hardened mortar)
5.4.6 Thermal conductivity
5.4.7 Durability
5.4.8 Reaction to fire
5.4.9 Dangerous substances
16 5.5 Additional requirements for thin layer mortars
5.5.1 General
5.5.2 Aggregates
5.5.3 Correction time
5.6 Mixing of mortar on site
6 Designation of masonry mortar
17 7 Marking and labelling
8 Assessment and verification of constancy of performance (AVCP)
8.1 General
8.2 Product-type determination
8.2.1 General
18 8.2.2 Sampling
8.2.3 Reference test
8.2.4 Repeating of product-type determination
8.2.5 Recording
8.2.6 Application of test methods
8.3 Factory Production Control, FPC
8.3.1 General
8.3.2 Process control
8.3.2.1 Incoming raw materials
19 8.3.2.2 Production process
8.3.3 Finished product conformity
8.3.3.1 Tests on the finished product
8.3.3.2 Test equipment
8.3.4 Statistical techniques
8.3.5 Traceability – marking and stock control of products
20 8.3.6 Non-conforming products
21 Annex A (normative) Sampling for product-type determination and independent testing of consignments
A.1 General
A.2 Sampling procedure
22 Annex B (informative) Use of masonry units and masonry mortar
24 Annex C (normative) Characteristic initial shear strength of designed masonry mortars
25 Annex D (informative) Indicative test frequencies for Factory Production Control (FPC)
Table D.1 — Testing of masonry mortars
27 Annex ZA (informative) Relationship of this European Standard with Regulation (EU) No.305/2011
ZA.1 Scope and relevant characteristics
Table ZA.1 — Relevant clauses for masonry mortars and intended use(s)
28 ZA.2 System of Assessment and Verification of Constancy of Performance (AVCP)
ZA.3 Assignment of AVCP tasks
29 Table ZA.3.1— Assignment of AVCP tasks for factory-made designed masonry mortars under system 2+
Table ZA.3.2 — Assignment of AVCP tasks for factory-made prescribed masonry mortars under system 4
30 Bibliography

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BS EN 998-2:2016
$142.49