Browse Forums Building A New House 1 Sep 17, 2010 2:52 pm Hi Folks, I have a sloping block (1:8) on which I would like to commence building. After speaking to a lot of people (engineers included), I am strongly considering building a suspended concrete slab on it. However, I seem to not have a concesus on which type of suspended slab to build. Some say use Bondek to build it , while others are for the more traditional formwork aproach. Keping cost out of the equation, which of these would be a better engineering option?. Suburbia is where the developer bulldozes out the trees, then names the streets after them. Re: bonDEK for suspended slabs 2Sep 17, 2010 5:50 pm I have a mixture in my build. I would go for traditional formwork unless there's a good reason to deviate. In my case a portion had to be thinner and that's why Bondek was used, but only for a relatively small section. Demolition August 2009, Construction Started September 2009, Completed December 2010 Re: bonDEK for suspended slabs 3Sep 19, 2010 9:15 pm Casa2 I have a mixture in my build. I would go for traditional formwork unless there's a good reason to deviate. In my case a portion had to be thinner and that's why Bondek was used, but only for a relatively small section. Thank you casa2 for your input. Yes, after scouring the internet for info on Bondek, I too am convinced that traditional formwork would be the way to go. BTW, the reason for asking this is that I am buildign a suspended slab on a sloppy block of land (1 in 7 gradient) Cheers- Suburbia is where the developer bulldozes out the trees, then names the streets after them. Re: bonDEK for suspended slabs 4Sep 19, 2010 9:24 pm Form and pour Where you are coming from is where you are going to... Re: bonDEK for suspended slabs 5Sep 19, 2010 9:37 pm bondek is used extensively in the construction industry for this very purpose Re: bonDEK for suspended slabs 6Sep 19, 2010 9:52 pm commercial is easier to justify the cost. Where you are coming from is where you are going to... Re: bonDEK for suspended slabs 7Sep 19, 2010 10:35 pm Use of bondek is quick and easy. It also is the sacrificial formwork, so what you see is what you get. Bondek reduces reinforcement requirements and also reduces the need of temp propping. I think it’s quite easy to justify it formwork Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Bondek Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: bonDEK for suspended slabs 9Sep 19, 2010 11:07 pm Good question casa Where you are coming from is where you are going to... Re: bonDEK for suspended slabs 10Sep 19, 2010 11:20 pm Really depends on the application. In most commercial cases bondek is far cheaper as formwork is labour intensive. labour is usually the most expensive part. For residential it really depends if you’re doing it yourself with mates, or paying someone to do it. If labour if free, forming may be cheaper. But the materials for forming are still quite expensive. Form ply is approx $80 a sheet plus the all the bracing required etc etc... Best to do some costing on both Re: bonDEK for suspended slabs 11Sep 20, 2010 11:55 am All of ours is formed. Will give us the ability to paint it later on down the track if need be. I dare say screwing things in will just as easy no matter which way you go. I have used both and I think Speedfloor is more convenient for services due to their beams already have services penetrations. However, Bondek allows thinner slabs overall… 1 2286 Fair Trading can issue orders to rectify and complete but once the matter goes to NCAT these orders are automatically vacated. You will have to terminate contract and sue… 21 29679 How are you doing Ben? Extremely interested in hearing what you are doing or plan to do! 12 15113 |