DDIINNCCEELL WWAALLLL FFIIRREE …...In essence, these results confirm that Dincel can be used without restriction anywhere internally within a building (including Fire Stairs)

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Telephone: (612) 9670 1633 101 Quarry Road Email: [email protected] Facsimile: (612) 9670 6744 Erskine Park, NSW 2759 Website: www.dincel.com.au PO Box 104, St Clair, NSW 2759 A.B.N. 78 083 839 614 AUSTRALIA

DDIINNCCEELL WWAALLLL

FFIIRREE AASSSSEESSSSMMEENNTT

DISCLAIMER The information contained in this document is intended for the use of suitably qualified and experienced architects and engineers and other building professionals. This information is not intended to replace design calculations or analysis normally associated with the design and specification of buildings and their components. Dincel Construction System Pty Ltd accepts no liability for any circumstances arising from the failure of a specifier or user of any part of Dincel Construction System to obtain appropriate professional advice about its use and installation or from failure to adhere to the requirements of appropriate Standards and Codes of Practice, and relevant Building Codes.

mailto:[email protected]

http://www.dincel.com.au/


SUMMARY

The fire performance of has been assessed by: 1. Fire Hazard Properties

Wall lining materials need to comply with the Fire Hazard Properties requirements of the NCC (Specification C1.10 – Clause 4). Please find the below snapshot of Specification C1.10 (Fire Hazard Properties) – Clause 4 (Wall and ceiling linings). This clause refers to “AS 5637.1”. In accordance with AS 5637.1, Dincel carried out an AS ISO 9705 test at Warringtonfire (Full-Scale Room Fire Test). Please find the following linked 2 minute long video on this test (https://www.youtube.com/watch?v=X-45ymnRAl8). Dincel was classified as a Group 1 material and its smoke growth rate index was 7 times below the NCC/BCA limit. In essence, these results confirm that Dincel can be used without restriction anywhere internally within a building (including Fire Stairs). Reference No: 1 shows the Executive Summary page from the classification report to AS 5637.1 for Dincel. This confirms that the Dincel lining material complies with the Deemed-to-Satisfy provisions for load-bearing internal walls, and basement walls which are below ground. Reference No: 2 shows the Executive Summary page from Warringtonfire’s “Evidence of Compliance” report for Dincel which confirms this. Please contact Dincel for full report.

Test to AS ISO 9705 at Warringtonfire

https://www.youtube.com/watch?v=X-45ymnRAl8


2. Façade walls and non-combustibility In relation to where a load-bearing Dincel Wall could be used, it is important to

note that the subject combustibility compliance is only applicable to façade walls in accordance with the NCC.

The only Deemed-to-Satisfy test for combustibility is AS 1530.1. This is a very old small-scale test based on a 50mm thick cylindrical sample. It is a test for homogenous products and is not applicable/appropriate for composite products (such as a Dincel Wall). This is the reason why a performance based approach is used to demonstrate compliance for Dincel Wall for facade applications. In relation to Dincel Wall’s external/façade wall use (i.e. testing to BS 8414/AS 5113), please find the following time-lapsed video of this test (https://www.youtube.com/watch?v=Ry4hXJDyN14&feature=youtu.be). Following this test, a prominent fire engineering consultant firm assessed Dincel’s test results and carried out an Evidence of Suitability Report. As can be seen from the below snapshot, within the Executive Summary of this report it states “….the Dincel Structural Walling system complies with the NCC for use where a non-combustible external wall is required in Class 2 to 9 buildings of Type A, B and C construction.”. Please contact Dincel for this Evidence of Suitability Report.

Test to BS 8414/AS 5113 at Warringtonfire

https://www.youtube.com/watch?v=Ry4hXJDyN14&feature=youtu.be


3. Bushfire Prone Areas The assessment report by CSIRO - FCO-2725 (Reference No: 7) states that when

Dincel Forms are filled with concrete it will comply with AS3959 – 2018 and allowed to be used in all bushfire conditions, including Bushfire Attack Level of BAL-FZ (i.e. the worst bushfire level).

4. Fire Resistance Periods

is a permanent polymer formwork for concrete filling. Dincel-Polymer forms DO NOT provide fire rating but the CONCRETE DOES.

The concrete infill of provides the appropriate provisions. The requirement is, BCA – Clause A 2.3 – Fire Resistance of Building Elements, Clause 2.d (ii) – Fire Resistance Period (FRP) of a structural concrete wall shall be determined in accordance with Australian Standard AS3600 for Concrete Structures as certified by The University of New South Wales (UNSW) (Reference No: 4) and The University of Technology, Sydney (UTS) (Reference No: 5). There are three (3) components that are required to be identified for the FRP.

• Insulation and Integrity – determined in accordance with AS3600 or a Fire Testing Laboratory.

• Structural Adequacy – determined in accordance with AS3600 for walls subject to the “deemed to satisfy” condition or a Fire Testing Laboratory can determine this criterion only up to the limits of the testing facility (i.e. applied load and eccentricity, wall height). Fire testing results for walls will not cover building structures of more than 3 to 4 storeys in height and wall heights greater than 3m. Under these circumstances the certifier should not accept the FRP determined by test results. Only concrete wall systems that are compliant with AS3600 can be accepted beyond the test results.

For fire test results to be accepted, the test sample element must be in strict compliance with AS3600. AS3600 – 2009 – Supplement 1 : 2014 states “protective coating of concrete is outside the scope of AS3600 – 2009”, which means that the certifier cannot accept any fire test results for systems that are reliant on waterproofing.

complies with the Deemed-To-Satisfy condition of the Building Code of Australia in accordance with the certificates by the UNSW (Reference No: 4) and the UTS (Reference No: 5) A fire-resistance test by CSIRO (Reference No: 6) was originally organised to validate that Dincel-Form’s web-links will not burn or melt away to create holes so that the Fire

Resistance Period of for ………./integrity/insulation are not affected. This conclusion has been further reinforced by evidence from additional tests (See conclusion from Reference No: 3 – Warringtonfire’s assessment letter).


The Dincel-Polymer formwork holds the wet concrete until it sets. If for some reason Dincel-Polymer is required to be removed or even burns during a fire event, the remaining core component is ordinary concrete which provides the required Fire Resistance Period for structural adequacy/integrity/insulation. Therefore, the presence of Dincel-Polymer remaining at the face of the concrete wall can be considered as nothing more than a lining. Summary of FRP’s for 275mm Dincel, 200mm Dincel, 155mm Dincel and 110mm Dincel Walls (i.e. Concrete Walls) is as follows: Insulation (AS3600 – Concrete Structures Code – Table 5.7.1 – Fire Resistance Periods for Walls for Insulation):

• 275mm Dincel has concrete thickness of 270mm. Therefore, Fire Resistance Period for Insulation = 240 minutes (minimum concrete thickness of 175mm is required for 240 minutes).




Integrity: If both Insulation and Structural Adequacy is satisfied, AS3600 states that this condition is satisfied as well. Structural Adequacy: The FRP for Structural Adequacy is NO LONGER determined by the concrete thickness alone, in accordance with AS3600. The FRP for structural adequacy must be calculated by a Structural Engineer, giving consideration to the wall thickness, wall height, load on the wall, loading eccentricity on the wall and concrete grade. Therefore, the following FRP’s could be achieved:

• 275mm Dincel Wall – 240/240/240.

• 200mm Dincel Wall – 240/240/240.

• 155mm Dincel Wall – 180/180/180.

• 110mm Dincel Wall – 90/90/90. The “Structural Adequacy” component of the FRP is to be calculated and confirmed by the project Structural Engineer.


References (1) Warringtonfire - Executive Summary from the report titled “Classification of a

wall and ceiling lining in accordance with AS 5637.1:2015”. If required the full report can be provided.

(2) Warringtonfire - Executive Summary from the report titled “Evidence of

Compliance”. If required the full report can be provided. (3) Warringtonfire - Letter of Assessment in relation to fire resistance

performance. (4) UNSW – Structural Engineering Certification. (5) UTS – Engineering Certificate of Conformity. (6) CSIRO – Fire Resistance Report (Report No: FCO-2674). (7) CSIRO – Assessment Report (Report No: FCO-2725) for Bushfire Prone Areas.


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DDIINNCCEELL WWAALLLL FFIIRREE …...In essence, these results confirm that Dincel can be used without restriction anywhere internally within a building (including Fire Stairs)