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AS 4773.2:2015


Masonry in small buildings, Part 2: Construction

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AS 4773.2 2015 specifies requirements for construction practices for masonry in buildings of Class 1 and Class 10a, as defined in the National Construction Code (NCC), designed in accordance with AS 4773.1 and to be constructed from clay, concrete, or calcium silicate masonry units.
Published: 18/08/2015
Pages: 86
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Table of contents
Cited references
Content history
Table of contents
About this publication
1 Scope and general
1.1 Scope
1.2 General limitations
1.2.1 Loading
1.2.2 Limitations for building geometry
1.3 Normative references
1.4 Definitions
2 Masonry units
2.1 Materials
2.2 Sizes
2.3 Compressive strength
2.4 Durability
2.5 Expansion or contraction
3 Mortar
3.1 Mortar types
3.2 Mortar components
3.2.1 Cement
3.2.2 Lime
3.2.3 Sand
3.2.4 Water thickener
3.2.5 Water
3.2.6 Additives
4 Grout
4.1 Purpose
4.2 Composition
4.3 Placement
5 Built-in components
5.1 General
5.2 Durability
5.3 Wall ties
5.4 Lintels
5.5 Reinforcement
5.6 Flashings and damp-proof courses
6 Subfloor construction
6.1 General
6.2 Ventilation
6.3 Subfloor bracing
6.4 Subfloor piers
6.4.1 Pier spacing
6.4.2 Engaged piers
6.4.3 Isolated piers
6.4.4 Anchorages
7 Control joints
7.1 General
7.2 Articulation joints
7.3 Contraction joints
7.4 Expansion joints
7.5 Details
7.5.1 General
7.5.2 Tying across the cavity
7.5.3 Tying across the joint
8 Lintels and arches
8.1 General
8.2 Steel lintels
8.2.1 Selection of steel lintels
8.2.2 Detailing of steel lintels
8.3 Reinforced masonry lintels
8.3.1 Reinforced masonry lintels
8.3.2 Detailing of reinforced masonry lintels
8.3.3 Bearing length for reinforced masonry lintels
8.4 Arches for unreinforced masonry walls
9 Masonry veneer walls
9.1 General
9.2 Cavity
9.3 Leaf thickness
9.4 Supporting frame
9.5 Allowance for timber shrinkage
9.6 Damp-proof courses, flashings and weepholes
9.6.1 Damp-proof courses
9.6.2 Flashings and weepholes Cavity flashings Sill flashings Head flashings Flashing at roof abutment
9.7 Wall ties
9.8 Roof anchorage
10 Cavity masonry walls
10.1 General
10.2 Cavity
10.3 Leaf thickness
10.4 Bonding
10.5 Damp-proof courses, slip joints, flashings and weepholes
10.5.1 Damp-proof courses (DPCs)
10.5.2 Slip joints
10.5.3 Flashings and weepholes Cavity flashings Sill flashing Head flashings Flashing at roof abutment Parapet flashings Chimney flashings
10.6 Wall ties
10.7 Lateral support
10.8 Roof anchorage
10.9 Chases, holes and recesses
10.10 Parapets
11 Unreinforced single-leaf walls
11.1 General
11.2 Leaf thickness
11.3 Bonding
11.4 Damp-proof courses and slip joints
11.4.1 Damp-proof course (DPC)
11.4.2 Slip joints
11.5 Lateral supports
11.6 Roof anchorage
11.7 Weatherproofing
11.7.1 General
11.8 Chases, holes and recesses
12 Reinforced masonry walls
12.1 General
12.1.1 Reinforced masonry
12.1.2 Reinforcement—Starter bars
12.1.3 Vertical reinforcement
12.1.4 Horizontal reinforcement
12.2 Roof tie downs
12.3 Grout
12.4 Weatherproofing
Appendix A
Appendix B
B1 General
B2 Method using water
B3 Methods using ACID
B3.1 Diluted hydrochloric acid
B3.2 Other acids
B4 Proprietary cleaning compounds
B5 High-pressure water
B6 Cleaning procedure for new external masonry
B7 Cleaning mortar from new internal masonry
Amendment control sheet
Cited references in this standard
[Available Superseded]
Built-in components for masonry construction, Part 1: Wall ties
[Pending Revision]
General purpose and blended cements
Wind loads for housing
Steel structures
Masonry in small buildings, Part 1: Design
Content history
DR AS 4773.2:2015