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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Please write a comment Cancel reply Your email address will not be published. To understand more about how the changes to AS may affect your slab designs and consequently, slab costs, contact your engineer.

For all sites in particular sites with reactive soils drainage and soil moisture conditions around the building need to be managed sa2870 avoid abnormal moisture conditions, as outlined in Clause 1.

For design purposes, the life of the structure is taken to be 50 years. A soil’s Ys rating is its indication of movement potential.

Standards Catalogue

AS Code Changes. The previous code revision called for reinforcing mesh to be upgraded to the next specification when a concrete slab was greater than 25 metres in length. The Standard may also be used for other forms of construction, including some light industrial, commercial and institutional buildings if they are similar to houses in size, loading and superstructure flexibility. The Australian Standard has Changed.

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.


Regards David my mobile is Some of the reinforcing requirements for design have changed and have the potential to have a significant affect on the cost of a waffle slab. It also provides guidance on the design of footing systems, abiding by engineering principles. It was approved on behalf of the Council of Standards Australia on 20 December It is measured in millimetres and suggests the value of which the soil might move due to changes in moisture.

One of the elements used to administer this change is the “Ys” range Ys being the measure of potential movement in mm of the soil. AS regulates site classification, design, construction and maintenance of residential slabs and footings. Coincidentally with the introduction of AS inI started a consulting engineering practice in and around Brisbane, specializing in residential slab and footing design. Photo Gallery – Installation. For example, the introduction of the H2 classification sees the requirement for N16 reinforcing bars to be used in all edge beams and etandard beams of the slab typical on a waffle slab.

For more information about ASclick here: The table above highlights one of the most significant changes to the code, being the splitting of the “H” classification into two new classes, H1 and H2. This latest release has seen a number of changes introduced which will stanndard turn affect the austrlian design calculations for residential slabs-on-ground.

I have some trees that are too close to the house. Steel Reinforcing Calculations Some of the reinforcing requirements for design have changed and have the sa2870 to have a significant affect on the cost of a waffle slab. This is a free 7 page sample. They disregard our safety in favour of the tree protection.


Australian Standard As Pdf Download – livinfast

This change applies to all slab designs across all site classification types. 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 austrslian.

Either way, I will never disclose your personal details to any other party. Frank Van ax2870 Woude B. This Standard sets out the criteria for the classification of a site and the design and construction of a footing system for a single dwelling house, townhouse or similar structure which may be detached or separated by a party wall or common wall, but not situated vertically above or below another dwelling, including buildings classified as Class 1 and Class 10a in the Building Code of Australia.

AS — This is a free 7 page sample. Key Contacts Make an Enquiry.

Could you please send me the 7 page sample. I would like to remove them due to safety and to prevent damage to the house and drainage. Standad Local Authorities required professional engineer certification of residential slab and footing designs, I diligently assessed the structural adequacy of standard designs prescribed in AS