STRUCTURE0310 AFS LOGICWALL in concrete combined
0310 AFS LOGICWALLin concrete combined
Branded worksection
This branded worksectionTemplate has been developed by NATSPEC in conjunction with AFS Products Group Pty Ltd and may be used whilst the Product Partner is licensed to distribute it. The copyright remains with NATSPEC. As with all NATSPEC worksections, it is the responsibility of the user to ensure it is completed appropriately for the project. The user should also check its applicability for local conditions and regulations. Check for the latest updated version.
Worksection application
This branded worksection Template is applicable to the use of concrete for building and associated structures together with specialist wall system products by AFS for external and internal use. It combines relevant clauses from the following worksections:Concrete formwork, Concrete reinforcement, Concrete post-tensioned, Concrete in situand Concrete finishes. Delete material as necessary.
For projects with precast and tilt-up concrete elements, also use the additional worksections Precast concrete and Tilt-up concrete, as required.
SeeNATSPECTECHnoteDES006on specifying concrete.
This worksection Templatecontains technical content which must be customised by a professional engineer for inclusion in a project specification.
Guidance text
All text within these boxes is provided as guidance for developing this worksection and should not form part of the final specification. This Guidance text may be hidden or deleted from the document using the NATSPEC Toolbar or the hidden text Hide and Delete functions of your word processing system. For additional information visit FAQs at
Optionaltext
Text in this font (blue with a grey background) covers items specified less frequently. It is provided for incorporation into Open text where it is applicable to a project.
Related material located elsewhere in NATSPEC
If a listed worksection is not part of your subscription package and you wish to purchase it, contact NATSPEC.
Related material may be found in other worksections. See for example:
- Concrete formwork.
- Concrete reinforcement.
- Concrete post-tensioned.
- Concrete in situ.
- Concrete finishes.
- Shotcrete.
- Cementitious toppings.
- Terrazzo in situ.
Cross references
Worksections that cross reference this worksection are:
- None.
Material not provided by AFS Products Group Pty Ltd
This worksection Template includes generic material which may not be provided by the Product Partner.
Documenting this and related work
You may document this and related work as follows:
- It is important that the structural drawings either fully detail the work or define performance criteria (loading, deflection, exposure, fire rating) for any anticipated contractor design. If the latter is adopted, independent certification by a professional engineer of the design and documentation, and of the erected structure/structural element, is appropriate.
- Show on the drawings any special requirements.
Specifying ESD
Refer to NATSPECTECHreport-SpecifyingESD. The following may be specified here:
- Thermal mass and embodied energy. Refer to AIAEDGDES4 and AIAEDGPRO2.
- Climate-responsive house design with concrete. Refer to CCAAT58.
- Concrete manufactured using a combination of coarse recycled and conventional aggregates and fine sand. Refer to SAAHB155.
- Sustainable concrete buildings. Refer to CCAABriefing13.
- Sustainable concrete materials. Refer to CCAABriefing11.
- Thermal mass benefits for housing. Refer to CCAABriefing12.
1GENERAL
AFSprofile
AFS is a 100% Australian owned and operated company, established in 1996 to supply the construction industry with proprietary walling and framing systems. AFS compliment their product through dedicated installation crews in each State, and through training and assistance to new installers.
With many years in the industry, AFS has become the industry leader in pre-fabricated structural walling systems. AFS has successfully supplied over 300 projects and some 10,000 units with AFS LOGICWALL.
Their mission is to excel in the supply of proprietary structural building elements and to offer their clients a superior alternative to traditional construction methods. To achieve their mission they have implemented state of the art procedures from design concept to delivery, providing a complete service to their clients which exceeds their expectations.
1.1Responsibilities
General
General: Provide cast concrete as follows:
-In conformance with the design details.
-Which satisfies quality and inspection requirements.
-Compatible with finishes.
It is the designer’s responsibility to select surface finish methods that are compatible with the requirements of floor finishes applied over concrete.
Post–tensioned concrete: Provide post-tensioned concrete as follows:
-In conformance with the performance criteria nominated on the structural drawings.
Specify performance or delete.
-Certified by a professional engineer for the design and the erected framing.
If the work is fully documented in the contract documents, delete and add the following text:
- In conformance with the POST-TENSIONING clauses.
AFS: Provide AFS LOGICWALL systems as documented.
Selections: As documented.
Design
Formwork: The design of all formwork, including props to AFS wall panels, is the contractor’s responsibility, other than profiled steel sheeting composite formwork and AFS LOGICWALL panels.
This applies to all formwork types, including conventional, proprietary (non composite profiled steel sheeting) or purpose-made formwork.
Post-tensioning: Design and provide post-tensioning in conformance with the Structural design actions schedule in General requirements and the following:
Exposure classification to AS3600: [complete/delete]
See AS3600 Section 4 on durability.
Deflection: Long term incremental deflection not exceeding span divided by:
For total deflection to AS3600: [complete/delete]
For incremental deflection to AS3600: [complete/delete]
Delete this entire subclause if the work is fully documented in the contract documents.
1.2COMPANY CONTACTS
AFS technical contacts
Website: Go to and follow the ‘Contacts’ tab.
1.3Cross references
General requirements
Requirement: Conform to the following:
-General requirements.
The General requirements worksection contains umbrella requirements for all worksections.
[complete/delete]
List the worksections cross referenced by this worksection. TheGeneral requirementsworksection references theCommon requirementsworksections. It is not necessary to repeat them here. However, you may also wish to direct the contractor to other worksections where there may be work that is closely associated with this work.
NATSPEC uses generic worksection titles, whether or not there are branded equivalents. If you use a branded worksection, change the cross reference here.
1.4Standards
General
Formwork design and construction, formed surfaces: To AS3610 and AS3610.1.
Plywood formwork: To AS6669.
AFS: To the following standards:
-Steel stud frames: To AS1397.
-Reinforced concrete: To AS3600.
-Fibre cement sheeting: To AS/NZS2908.2.
Profiled steel sheeting, including shear connectors: To AS2327.1.
Specification and supply of concrete: To AS1379.
Concrete materials and construction: To AS3600.
The BCA also cites AS3600-2001.
Residential ground slabs and footings: ToAS2870.
The BCA cites AS2870-1996.
Post-tensioning: To AS3600.
Concrete structures for retaining liquids: To AS3735.
Cement: To AS3972.
Admixtures (each type used): To AS1478.1.
Strand, bar and wire: To AS/NZS4672.1.
Structural design: To AS3600.
Delete standards not applicable to the works.
1.5manufacturer’s Documents
Technical manuals
Data and technical manuals:Visit order free technical manuals, standard details and CD or hard copy data manuals.
1.6Interpretations
Definitions
General: For the purposes of this worksection the following definitions apply:
-AFS: Permanent formwork, fire and acoustic rated, structural concrete walling system for external and internal walls.
-Ambient temperature: The air temperature at the time of mixing and placing of concrete.
-Average ambient temperature: Average value of the daily maximum and minimum ambient temperatures over the relevant period at a site.
-Concrete class:
.Normal: Concrete which is specified primarily by a standard compressive strength grade and otherwise in conformance with AS1379 clause 1.5.3.
.Special: Concrete which is specified to have certain properties or characteristics different from, or additional to, those of normal-class concrete and otherwise in conformance with AS1379 clause 1.5.4.
If special class concrete is nominated for the project, specify the relevant parameters in the Concrete properties schedule – performance.
-Early age: A mean compressive strength at 7 days exceeding the values shown in AS1379 Table 1.2.
-Green concrete: Concrete which has set but not appreciably hardened.
-Weather:
.Cold: Ambient shade temperature <10°C.
.Hot: Ambient shade temperature >30°C.
The Definitions subclause can be edited to suit the project.
1.7Inspection
Notice
Inspection: Give notice so that inspection may be made of the following:
-Base or subgrade before covering.
-Membrane or film underlay installed on the base.
-Completed formwork and reinforcement, tendons, cores, fixings and embedded items fixed in place.
-Surfaces or elements which will be concealed in the final work before covering.
-Commencement of concrete placing.
-Commencement of initial, incremental or final stressing of tendons.
-Cutting and grouting tendons.
-Evaluation of surface finish.
-Installed braces for AFS walls prior to filling with concrete.
-Plumb, straightness and squareness of AFS walls prior to filling with concrete.
-Face plates fixed to power/data boxes in AFS walls.
Delete or add as appropriate. Hold points, if required, should be inserted here.
Amend to suit the project adding ‘critical stage’ or mandatory inspections required by legislation or regulation.
1.8Tolerances
General
Position: Construct formwork so that finished concrete conforms to AS3600 clause 17.5 and the Formwork dimensional deviation schedule.
AS3600clause 17.5.2 states the limits beyond which the design rules of the standard nolonger apply. They are not intended as building tolerances. More stringent tolerances may be suitable. See suggested tolerances in Tables 4.4 and 4.5 NP:PCH.
Reinforcement and tendon position: To AS3600 clause 17.5.3.
Formed surfaces: In conformance with the surface finish requirements of AS3610.1Table 3.3.2 for the surface class nominated in the Formed surface finishes schedule.
Unformed surfaces: In conformance with the Flatness tolerance classes table for the class of finish nominated using a straight edge placed anywhere on the surface in any direction.
Flatness tolerance class table
Class / Measurement / Maximum deviation (mm)A / 3m straight edge / 3
B / 3m straight edge / 6
C / 600mm straight edge / 6
These classes have been adopted by NATSPEC in the absence of such in Australian Standards. It has been assumed that smoothness and projection tolerances form part of substrate preparation for the applicable floor finishes.The straight edge does not consider the frequency of surface undulations or waves. Consequently a Class B finish containing one wave under the straight edge may be more effective than a Class A finish with multiple waves.
For further information refer to the Cement Concrete Aggregates Australia CCAA Data Sheet – Tolerances for Concrete Surfaces.
Typical applied finishes to each flatness tolerance class are:
- A=Resilient finishes.
- B=Unfinished (plantrooms), carpet, substrates for bituminous coatings.
- C=Floor tiles (scored finish).
Flatness tolerance Class C is specifically stated for areas where the local flatness (600mm) is not critical to the applied finishes. This varies from the minimum standard for flatness in AS3600clause 17.5.2.4.
AFS wall systems
Position: Install AFS wall panels so that completed walls conform to AS3600 clause 17.5.
The surface finish for AFS wall panels does not need to be specified in the concrete worksection as the finish is provided by the fibre cement sheet of the wall panel. However, the final quality of the finished wall needs to be specified in later FINISH worksections in accordance with AS/NZS2589.
1.9Submissions
Calculations
Design: Submit structural performance calculations.
Delete if work is fully documented in contract documents.
Design
Theoretical extensions calculations: Submit calculations of tendon jacking forces, extensions and losses for each stressing stage. Submit amount of draw-in expected in seating anchorages, friction along tendon (wobble) coefficient and friction curvature coefficient for tendons and duct-forming material.
Substantiating field data may also be required.
Loading: Submit details of proposed construction systems, loads and procedures, including propping and re-shoring.
Certification: Submit certification by a professional engineer experienced in formwork design and construction verifying conformance of the completed formwork, including the suitability of the formwork for the documented surface finish class.
Drawings
Cores, fixings and embedded items: If the locations of these items are not shown or are shown diagrammatically, submit shop drawings showing the proposed locations, clearances and cover. Indicate proposed repositioning of reinforcement.
Delete if work is fully documented in contract documents.
AFS drawings: Submit shop drawings of the AFS LOGICWALL works before commencing on site, showing details of the following:
-Edge form detail.
-Estimated m3 of concrete required for each wall.
-Location of all penetrations.
-Location of any cast in elements.
-Panel dimensions.
-Panel elevations.
-Plan layout with wall numbers.
-Slab set-downs along wall line.
Post-tensioned drawings: Submit shop drawings of post-tensioned work showing details of the proposed system before commencing on site, including the following:
-Profiles, sizes and details of tendons, anchorages, ducts, duct formers, splicing, sheathing, end block reinforcement and other associated components.
-Stressing requirements including sequence of stressing, jacking forces and the basis of assumed loss calculations.
-Number, size and position of grout openings, vents and drain holes in the ducts.
Products
Product conformity: Submit current assessments of conformity, as follows:
-Certificate of conformity by a JAS-ANZ accredited third party.
e.g. Reinforcement: To AS/NZS4671.
-Declaration of conformity by an AS/NZSISO9001 quality management system certified supplier.
e.g. Premixed concrete: Production assessment to AS1379.
-Mark of conformity of a JAS-ANZ accredited third party applied to the product.
e.g. Milled radiata pine products: Plantation Timber Certification.
-Report by a NATA accredited laboratory describing tests and giving results which demonstrate that the product conforms.
Curing compounds: If it is proposed to use a liquid membrane-forming curing compound, submit the following information:
-Certified test results for water retention to AS3799 Appendix B.
It is likely that polyvinyl alcohol (PVA-based) products will not comply with water retention requirements.
-Evidence of compatibility with concrete, and with applied finishes including toppings and render, if any, including methods of obtaining the required adhesion.
-For visually important surfaces, evidence that an acceptable final surface colour will be obtained.
Void formers: Submit test certificates to confirm that the formers comply with the following requirements under laboratory conditions, when placed on damp sand and loaded with a mass of wet concrete equal to at least the mass of the beams or slabs they are required to support:
-Deflection during placing and compaction of the concrete is less than the span of the beam or slab divided by 1000.
-Additional deflection between initial set and 7 days does not exceed span/400.
-The load carrying capacity for 48 hours after flooding with water.
Grout: Submit proposed grout mix (including grading, proportions, compressive strength and shrinkage) including additives, if any.
Epoxy grout: If required, submit proposed formulation.
Duct-forming material: On request, submit samples of proposed material.
Tendon materials: Submit test certificates for strand, bar or wire proposed.
Typical certified stress-strain curves for each 10 coils of wire or strand, or each parcel of tendon materials.
Anchorages: Submit performance test certificates for each type and size of anchorage and coupler.
If not available, ensure that the steel to concrete bearing surface is big enough to keep bearing stresses within those allowed in AS3600 clause 12.6.
AFS:Submit the following:
-CSIRO test certificate for fire resistance, available by contacting AFS.
AFS LOGICWALL panels have been subjected to a fire resistance test carried out by the CSIRO. This test ascertained the following Fire Resistance Levels (FRL):
- AFS120 FRL = 120/120/120.
- AFS150 FRL = 240/240/180
- AFS162, AFS200 and AFS262 FRL = 240/240/240.
-Certification of acoustic performance, available by contacting AFS.
AFS LOGICWALL panels have been extensively tested for acoustic performance both in the field and in the laboratory. The following results have been achieved with standard AFS LOGICWALL:
- AFS120 - RW= 48Dnt,W+Ctr = 43
- AFS150 - RW = 52Dnt,W+Ctr = 47
- AFS162 - RW = 54Dnt,W+Ctr = 50
- AFS200 - RW = 55Dnt,W+Ctr = 50
- AFS262 - RW = 57Dnt,W+Ctr = 52
Execution details
Concrete: Submit proposals for mixing, placing, finishing and curing concrete including the following:
-Curing and protection methods.
-Curing period for low-pressure steam curing, if proposed.
-Cutting or displacing reinforcement, or cutting hardened concrete.
-Handling, placing, compaction and finishing methods and equipment, including pumping.
-Placing under water.
-Sequence and times for concrete placement, and construction joint locations and relocations.
-Site storage, mixing and transport methods and equipment, if applicable.
-Temperature control methods.
Cutting or coring: If cutting or coring of hardened concrete is proposed, provide details.
Sequence of concrete placement: If sequential placement of slab segments is proposed, provide details.
Sawn joints: Submit proposed methods, timing and sequence of sawing joints.
Props: If props above a floor do not coincide with the props below, submit details.
Reshoring: If reshoring is intended, submit proposals.
Stripping single storey suspended work: If the requirements of AS3610 cannot be met, give notice.
Surface repair method: If required, submit details of the proposed method before commencing repairs.
Reinforcement: If changes are proposed to reinforcement shown on the drawings, submit details.
Damaged galvanizing: If repair is required, submit proposals to AS/NZS4680 Section 8.
Provision for concrete placement: If spacing or cover of reinforcement does not conform, give notice.
Splicing: If undocumented splicing is proposed, submit details.
Welding: Give notice before welding reinforcement.
Delete any that are not applicable.
AFS: Provide the following information:
-If early removal of bracing is required, submit structural engineer’sapproval in writing. Panels are core-filled and supported by roof framing or floor above and removing braces prior to this or within 24 hours of pouring slab over, constitutes early removal of bracing.
-If panels need to be cut on site for any reason, submit certification from AFS shop drawers prior to cutting.