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Design, construction and maintenance of residential slabs is regulated by Australian Standard AS – Residential slabs and footings. Australian Standard AS – Time for a change. With specific reference to the slab heave problem with waffle rafts. Frank Van der Woude, B.E., Ph.D. AGS Vic. complying with the Australian Standard – AS referenced by the BCA. AS covers the design and construction of residential slabs and footings.

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Coincidentally australain the introduction of AS inI started a consulting engineering practice in and around Brisbane, specializing in residential slab and footing design.

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Welcome to my engineering blog – Australian Standard AS

There australiaan also been a revision of the mesh requirements for ‘slab length’. These changes will also see the cost of a “conventional” waffle go up as more piers will be specified in order to satisfy the new requirements of the code. AS — specifies performance criteria and specific designs for footing systems for foundation conditions commonly found in Australia. It also provides guidance on the design of footing systems, abiding by engineering principles.


Photo Gallery – Installation. Economical designs that avoid significant damage are practicable only if the soil moisture content of the foundation material under the footing or slab is stable or within reasonable limits of stability over the design life of the house or structure.

AS Code Changes.

Standards Catalogue

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Welcome to my engineering blog

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Menu Home PolyVoid Australiab. For design purposes, the life of the structure is taken to be 50 years. Some of the reinforcing australiah for design have changed and have the potential to have a significant affect on the cost of a waffle slab. I would like to talk to some one from your department if possible.

Your comments will be very much appreciated. Here are some of the key changes to this code and how they lead to a PolyVoid designed suspended slab-on-ground being highly competitive, and a solution for problem foundations and reactive soils.

More Qs2870 Information To understand more about how the changes to AS may affect your slab designs and consequently, slab costs, contact your engineer. January December I have some trees that are too close to the house. Key Contacts Make an Enquiry.


Frank Van der Woude B. This change applies to all slab designs across all site classification types. To understand more about how the changes to AS may affect your slab designs and consequently, slab costs, contact your engineer. For example, the introduction of the H2 classification sees the requirement for N16 reinforcing bars to be used in all edge beams and internal beams of the slab typical on a waffle slab.

These calculation changes will ultimately see waffle slabs being more heavily piered than previously. For austgalian information about ASclick here: The standard sets out the criteria for the classification of a site, and the design and.

AS regulates site classification, design, construction and maintenance of residential slabs and footings. Because Local Authorities required australiqn engineer certification of residential slab and footing designs, I diligently assessed the structural adequacy of standard designs prescribed in AS Standad Australian Standard has Changed.