0331 Brick and block construction

WORKSECTION APPLICATION

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1 Cross references

GENERAL

General: Conform to the General requirements worksection.
The General requirements worksection contains umbrella requirements for referenced documents, inspections, tests, samples, contractor’s submissions, proprietary items, manufacturers’ recommendations, warranties, record drawings, operation and maintenance manuals. They need not be specified here unless you need to relocate them, for example if this is to be the specification for a package contract. In this case make sure that the interlocking contracts leave no loopholes, such as work by non-existent ‘others’, and have no overlaps.

Associated worksections: Conform to the following:
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List worksections cross referenced by this worksection. (General requirements references the Common requirements worksections. Do not repeat them here.). You may also wish to direct the contractor to other worksections where there may be work that is closely associated with this work. -Specify tie-down bolts, steel straps and other built-in roof restraints in this worksection or in the appropriate structural worksection (e.g. Light timber framing, Light steel framing).

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GENERAL

Materials and construction: To AS 3700.
Familiarity with this standard is essential. Design to AS 3700 is assumed not to be the contractor’s responsibility. Therefore it is essential that the drawings indicate the design requirements for the masonry elements, including dimensions, strength and fire resistance rating.

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DEFINITIONS

General: For the purposes of this worksection the definitions in AS 3700 clause 1.5.2 and those given below apply:
- Brick: A masonry unit that does not exceed 338 mm long x 225 mm wide x 113 mm high, of a size that allows it to be picked up with one hand while the other is used to apply mortar with a trowel.
- Block: A masonry unit exceeding the size of a brick.
From SAA HB 50.
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. Ordinary: Brickwork and blockwork which is not tested for specified strength values. . Face units: Bricks or blocks used in facework, including purpose-made units such as squints, sills and thresholds.
- Facework: Brickwork or blockwork in which the form, or form and colour, of the face units and joints is visible in the completed works.
Edit the Definitions subclause to suit the project or delete if not required.

-PARTICULAR SAMPLES REQUIRED MAY INCLUDE ACCESSORIES SUCH AS TIES, ANT CAPS, DAMP-PROOF COURSE, FLASHING, SILL BRICKS, SQUINTS AND VENTS. AS 3700 CLAUSE 11.7.2 RATE SAMPLING COVERS RATE OF SAMPLING FOR SPECIAL MASONRY SAMPLING. ADD REQUIREMENTS HERE.

Face units: Submit face units of each type illustrating the range of variation available, including colour, texture, surface irregularities, defective arrises, and shape.
- Number of each type: 6.

Facework sample panels

General: Provide, in a suitable position, a sample panel of each type of facework including pigmented face or pointing mortar.
- Minimum size (face of panel): 1200 mm high x 1190 mm long.
-If final design decisions have not been made about mortar colour and joint finish, it may be necessary to specify several trial sample panels illustrating different combinations. However, to reduce cost, consider locating sample panels so that they may be retained if approved, and incorporated into the works. Rely on these panels for definition of quality e.g. accuracy, neatness.

Type: Submit a 2 kg sample of each type of sand required to be of a particular colour, grade or source.
Samples of sand may be required where a particular source or colour is required, and for major works, where testing for grading is necessary.

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MASONRY CONSTRUCTION

Conformance: Conform to AS 3700 Table 11.1.
AS 3700 Table 11.1 Tolerances in masonry construction, does not specify facework