Browse Forums Building A New House 1 Jun 28, 2015 6:31 pm Hi, I am currently in the process of designing a new house and due to the slope of the block we have decided to go with a suspended slab design. Which of the below concrete slab systems would be most cost effective: - Conventionally formed slab - Post-tension slab - Ultrafloor slab Re: Concrete Slab 2Jun 28, 2015 10:22 pm Of the three I would say Ultrafloor slab. Post tensioning is really only a commercial building technique. Forming a conventional slab with all the propping etc would be a real pain. Rather than Ultrafloor I would probably look at something like Hebel Powerfloor+ The Harder You Try - the Luckier You Get ! Web site http://www.anewhouse.com.au Informative, Amusing, and Opinionated Blog - Over 600 posts on all aspects of building a new house. Re: Concrete Slab 3Jun 29, 2015 7:53 am Hi. I'm not sure what a post tension slab is so can't comment on that. We have an ultrafloor slab. It served our purpose but I wouldn't say it was cost effective. Have you also looked at Bondek and the likes? Check out my thread if you want. Build thread: viewtopic.php?f=38&t=75302 Re: Concrete Slab 4Jun 29, 2015 8:38 am I've heard of these bondek solutions before. Aren't they supposed to be quite cost effective? Re: Concrete Slab 5Jun 29, 2015 9:18 am There are many Solutions for suspended slabs...More info required Where are you building, House layout-> Supporting walls,Soil types-> Bearing capacity, Solid brick/Brickveneer/Combo->Weight, Slab Spans-> prefab, cast in situ. Blah,Blah As engineers/builders I design to optimize designs, materials usage, Buildability, Durability, costs.. Funny enough most suppliers/maufacturers price to competitors rates for different systems, so when you think this should be cheaper it's quite often not.....Then ask is it fit for purpose and it goes on... OT Basically It boils down to optimizing variables ie, time , materials,lanour, cost, quantities, profit...etc. I look at it from a perspective of what can I build from this CO$T..and work back..mathematically you are intergrating Data/Numbers.HTH Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs The concreter will take and reuse. In my case I bought structural LVLs and scraped them back and used them as joists. 1 5159 yep, clearly mark where the infloor heating pipes are before drilling or nailing 1 6063 Building Standards; Getting It Right! is this for a residential dwelling or a shed? If its for a dwelling, its out of tolerance and a "mistakes happen" isnt a good enough excuse to just move on. 1 2426 |