Steps in a slab and the steel that has to follow them
Where a slab changes level, the reinforcement has to carry past the step.
Steel, pods and barrier, looked at hours before they disappear under concrete.
One of our inspectors will call you back. If it is urgent, call 1300 471 805.
Gables pours have given us a consistent set of findings. Cover short at edge beams where the steel sits hard against the form. Mesh sagging between bar chairs. Beams wider than 300mm without the extra bottom bar their width requires. And on one recent slab, steps with no reinforcement extensions at all, an item the engineer had to look at before the concrete could go in.
Annotated findings from Slab pre-pour inspections.
1Bored piersOnce the piers are bored, before any concrete arrives
3FrameFrame and trusses standing, roof cover on, before sarking and linings
4Lock-up (pre-plaster)Roof, cladding, windows and rough-in done, before plaster
5FixingJoinery, doors and trims in, before the painter starts
6WaterproofingMembrane cured, before the tiler arrives
7Pre-handover (PCI)About two weeks before your handover dateWhere a slab changes level, the reinforcement has to carry past the step.
Steel beams and columns in Gables frames are only as good as how they are joined.
Services crowded together inside a wall are the most common lock-up item we record in Gables.
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The builder adds the bars or the engineer certifies the detail before the pour. Afterwards it cannot be checked without breaking concrete.
It depends on where the steel is and what it faces, and the figure is set in the engineering and AS 2870. We measure it rather than estimate it.
Mesh low in the slab is not where the engineer put it, so it does less of its job controlling cracking.
About an hour on a standard house slab.
That is common. Ring as soon as the date is set and we fit the visit in before the trucks.
Yes, for punctures, laps and sealing around penetrations, as well as the steel.