Browse Forums Building A New House Re: Which Slab is Better? Waffle Pod or Raft Concrete Slab??? 15May 13, 2009 11:16 pm Yeh esaasy the second one looks like lots of fun Most, (all) slabs have footings. (or thickenings) some slabs and footings are pour monolithicly.(slab & footings poured in one go!) Where you are coming from is where you are going to... Re: Which Slab is Better? Waffle Pod or Raft Concrete Slab??? 16May 14, 2009 5:19 pm jackyofaims Taffy I have built 4 houses with 3 different builders over the years and none have them have used waffle pods. I am in the country and its only since some of the big city companies have started to build here that I came accross the waffle thing, I lead a sheltered life I think it could be because theres so much competition in the city they have to get their costs down so go with this way. I personallly dont like the idea of it and am happy with my raft slabs. Or maybe Im one of those people who find it hard to change I am new to this industry and I am all confused with footings and slabs now! Anyone can help me clear these up? From what I read from the sites, I understand there are 5 types of slabs: slab on ground, stiffened raft slab, footing slab, waffle slab and infill slab. Obviously, footing slab has footing and the most common one is strip footing and are usually continuous around the entire perimeter of the building. What about other slabs? Do they have footings? What are the differences between slab on ground, stiffened raft slab, raft slab and footing slab? Just got the documentation for my block from Land Development Agency of Canberra. It doesn’t mention any thing about waffle slab!! Is waffle slab a type of pad footings? Here is what it said: Site classification is M House Footings Suitable “deemed-to-comply” footing designs for a Class “M” site can be found in AS2870 and includes stiffened rafts, stiffened footing slabs, and strip and/or pad footings supporting above ground floors. Ground slabs should be structurally tied to the edge and internal footings/beams, i.e. infill (floating) slabs should not used. Footings can be founded in the natural soil, but below topsoil and any general fill that may have been left after services installations and/or final surface regarding/topsoiling works were completed. A minimum footing depth of 0.5m from existing levels may be required. This can be checked on site by a geotechnical engineer to ensure a suitable foundation has been reached. After This site classification! My builder still recond waffle pod slab! Anyone has and suggestion? His email reply is: Waffle pod slab! Land is soft and clay. Re: Which Slab is Better? Waffle Pod or Raft Concrete Slab??? 17Jun 14, 2009 9:29 pm Just wanting to know if anyone has heard of any problems with waffle pod slabs. We are about to start building and our soil classification is P (problem) so it's like clay. The engineer has drawn a footing design that has footings 750ml deep and heaps of piers, beams & steel in it due to the soil. Our concreter has said that it is way too much but the engineer has to cover himself so the concreter has suggested that we get someone to do a waffle pod slab. We are a bit concerned because we haven't heard a lot about waffle pods and we can't decide which slab to go with now. Any help would be great. Thanks Re: Which Slab is Better? Waffle Pod or Raft Concrete Slab?? 18Sep 20, 2011 8:25 pm Hi, Can you please help. my builder sent me a bill for $6000 because the land was classed as P class, they want waffle slab instead of raft. can they do this? this was a fixed house and land contract price.. please answer me asap. thanks. Re: Which Slab is Better? Waffle Pod or Raft Concrete Slab?? 19Jan 13, 2019 1:26 pm C&D My husband is a concretor and personally prefers slab on ground. Some sites you need waffle pods (I assume as otherwise you would need a lot of piering which would be very expensive). I've heard when waffle pods first came out they were done incorrectly and people put heavy furniture in their house that went through the floor , and rodents got in under the slab and ate out the 'pod' bit. Of course waffle pods are much more common now and I seriously doubt that would happen anymore. I think my husband prefers slab on ground as it seems stronger, he doesn't like the idea of our house sitting on styrophome (or whatever the stuff is that pods are made out of) Thanks for the input Re: Which Slab is Better? Waffle Pod or Raft Concrete Slab?? 20Jan 14, 2019 7:50 am sircorp C&D My husband is a concretor and personally prefers slab on ground. Some sites you need waffle pods (I assume as otherwise you would need a lot of piering which would be very expensive). I've heard when waffle pods first came out they were done incorrectly and people put heavy furniture in their house that went through the floor , and rodents got in under the slab and ate out the 'pod' bit. Of course waffle pods are much more common now and I seriously doubt that would happen anymore. I think my husband prefers slab on ground as it seems stronger, he doesn't like the idea of our house sitting on styrophome (or whatever the stuff is that pods are made out of) Thanks for the input Hi sircorp The post you considered is almost 10 years old. The building Technics and methodology should have improved a lot. I would suggest you to get advice from a person who is in the field now. Good luck! Thanks Current State: Slab/Frame/Bricklayer/Lockup/Lining/Stairs/Kitchen/Wet flooring/Painted/PCI/Got the Keys My Thread: Building Windsor 40 with Eden Brae (Caddens) The Soil classification has little to do with piers. The purpose of the classing of the soil is to identify the clay content and the "average expected range of movement… 2 10208 brokers will also be in a position to get you a better rate than the advertised rate most times. 6 7842 Bigger the better for storage for me IMO. But I guess it's harder to tell the cost/benefit in your example - mainly the 'cost'? If you go 700mm, what are you doing extra… 2 2864 |