Suggested Specifications -
Revision 06
PART 1 SCOPE
1.1 DESCRIPTION
The scope of works described in this Section, shall be for the provision of interior and exterior mechanical movement joints together with the proprietary movement joint systems and cover plates as detailed on the drawings and specifications.
Movement joints and covers shall be installed wherever significant structural movement occurs in floor slabs, at slab perimeters, at wall, ceiling, roof and at stair junctions, all at locations as indicated on Architectural Drawings.
Movement joints and covers shall be selected to suit the particular application and shall meet all of the following criteria as required:
• Accommodate anticipated relative movements between structural elements, expansion, contraction, elastic shortening and rotation without permanent deformation, reduction of performance or other detrimental effects such as:
a) damage to or undue stress on structural elements, fixings and the like; and
b) failure of joints
• Allow for anticipated loads.
• Be level with floor, and / or present no hazard for the traffic anticipated.
• Be fire-rated, as required.
1.2 WORK INCLUDED
The following joint types form part of the work:
a) Floor movement joint systems
b) Wall movement joint systems
c) Ceiling movement joint systems
d) Roof movement joint cover systems
e) Fire-rated movement joint systems and slip joints
f) Control joint systems
1.3 SUBMITTALS
All movement joints and covers shall be submitted to the Architect for approval in sufficient time to allow for examination and re-submission before associated works are scheduled to commence.
Submit manufacturer’s products data information which shall include:
• technical specifications clearly showing movement capabilities, gap widths and block-out dimensions
• recommended installation guidelines
Submit copies of independent test certificates showing compliance with fire resistance rating requirements.
1.4 QUALITY ASSURANCE
Materials and work shall conform to the latest edition of reference specifications and the manufacturer shall implement and operate an approved Quality Assurance system for the product, complying with the requirements of AS/NZS ISO 9001.
Fire rated movement joints and slip joints shall have been tested by an approved industrial research and testing organisation registered by the National Association of Testing Laboratories (NATA).
1.5 LOADING CHARACTERISTICS
Joints shall be designed to withstand the loads over the contact areas and across the joint openings, as specified.
Details to be completed by Client / Architect / Engineer are:Maximum Joint Opening Required (mm) .....Maximum Joint Load (kN, kgs or tonnes - please state which) .....Contact Area of Load, sq mm .....If pneumatic tyred vehicles are going across the joint, maximum Tyre Pressure (kPa or psi) .....
1.6 DELIVER AND STORAGE
Provide temporary protective cover on all metal cover plates.
Store components in original packaging in a clean, dry location protected from the weather and construction activities.
1.7 WARRANTY
Miska Pty Ltd warrants that its Movement Joint Covers are free from manufacturing defects for a period of not less than one (1) year when installed, maintained and used in accordance with Miska’s specifications.
PART 2 PRODUCT
2.1 MANUFACTURER
Movement Joints shall be designed and manufactured by Miska Pty Ltd, PO Box 1021, Archerfield, Qld, Australia 4108. Phone: +617 32777077; Fax: +617 32778858 orEmail: enquiries@miska.com.au
Other manufacturers shall only be accepted if approved in writing before award of tender.
2.2 MATERIALS
a) Metals
Aluminium: AS/NZ 1866:1998 alloy 6060-TS and 6061-T6 for extrusions
Brass: AS/NQS 1567 Alloy 380
Stainless Steel: AS1449 Grade 304
b) Non Metal Products
Extruded Seals: Single layered neoprene / santoprene / rubber, designed and formed to fit compatible extrusions, classified as follows:
Manufactured and tested to AS1180, AS1683
2.3 FABRICATION
a) Provide the movement joint assemblies to the design, profile, materials and movement parameters as indicated. The factory manufactured joints shall accommodate the joint gap width, the finished levels of the adjacent surfaces and structural movement requirements. Assemblies shall be supplied in the longest practicable lengths to minimise the number of end joints.
b) Cover plates shall have a minimum thickness of 3mm.
c) Movement joints to be mitre cut on site to conform to directional changes.
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PART 3 EXECUTION
3.1 GENERAL
a) Movement joint systems shall be installed by a licensed applicator in strict adherence with the manufacturer’s guidelines and the advice (if required) of their official representative.
b) Ensure that surface preparation and block-out dimensions (where applicable) are to the manufacturers specifications.
3.2 INSTALLATION
a) All movement joint covers shall be carefully located in the positions indicated on the Contract Drawings. Metal frames shall be accurately aligned with adjoining surfaces and securely fixed so as to prevent displacement during placement of the high strength (60 Mpa) grout, or mechanically fixed as required for the type of frame.
b) Elastomeric seals shall be in continuous lengths or jointed by heat welding or vulcanised using equipment and methods recommended by the manufacturer.
c) Movement joint metal frames in position shall be subject to inspection prior to grouting to ensure that:
• butt joints allow for thermal expansion
• frames are parallel to each other, and to adjoining walls
• frames are flush with adjoining surfaces
As new technology is introduced, or industry standards are altered, Miska Pty Ltd reserves the right to alter existing specification, make design changes or withdraw any designs and products without notice.
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