Browse Forums Building Standards; Getting It Right! 1 Dec 22, 2018 2:06 pm The concreter got all the edge and internal beans done in the slab. Due to unavailability of the concrete pump he was not able to finish the slab. Now the remaining concrete work will be done in 1 week. Is this a correct? Will the reinforcements of the slab be aligned with the reinforcements of the beam for load transfer? Will this affect the quality of a double story house. Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Re: Can beans and slabs be poured at different dates? 2Dec 22, 2018 9:31 pm Dynamic1 The concreter got all the edge and internal beans done in the slab. Due to unavailability of the concrete pump he was not able to finish the slab. Now the remaining concrete work will be done in 1 week. Is this a correct? Will the reinforcements of the slab be aligned with the reinforcements of the beam for load transfer? Will this affect the quality of a double story house. Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ At the very least the engineer will need to sign off on how it is to be done so it is not defective and the certifier cannot sign off until the engineering is complete. It must be re-engineered. Re: Can beans and slabs be poured at different dates? 3Dec 25, 2018 4:35 pm It is always best to pour slab and beams together, otherwise your whole under slab space turns into a sort of a construction joint. I can say for sure, if engineer won't approve it, cutting and removing all this concrete is going to be an expensive hassle and your concreter will be the one who will be paying for it as well as for new pods, new steel and new concrete. Re: Can beans and slabs be poured at different dates? 4Dec 26, 2018 12:43 am By the look of the pictures they have Chem anchored and cogged rebar into the existing concrete beams. (All sprayed in yellow) You will probably find that this is the "engineered" solution for the two pours but I'd be running it past the engineer who signed of on the slab engineering to make sure this is an approved alternative. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Can beans and slabs be poured at different dates? 5Dec 26, 2018 7:44 pm cornellengineers I've never heard of a builder doing a construction joint in a waffle slab before. Definitely need your engineer to approve the two-pour slab in writing before you let them pour the top. I enjoyed reading your website regarding waffle pod slabs. Coming from Perth I've never actually seen a waffle pod slab, it's all raft slab and footings over here. Accessible Carpentry & Cabinets accessiblecarpentry@gmail.com accessiblecarpentry.com.au https://www.facebook.com/pages/Accessible-Carpentry-Cabinets/583314911709039 Re: Can beans and slabs be poured at different dates? 6Dec 27, 2018 7:37 am Dynamic1 The concreter got all the edge and internal beans done in the slab. Due to unavailability of the concrete pump he was not able to finish the slab. Now the remaining concrete work will be done in 1 week. Is this a correct? Will the reinforcements of the slab be aligned with the reinforcements of the beam for load transfer? Will this affect the quality of a double story house. Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Dynamic1 Welcome to the forum I suggest you get advice from your own structural engineer after you get copies of the geotech & engineering and then ask your builder for an extension on the Structural Warranty period be prepared to take your complaint to the building commission. Goodluck Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs Re: Can beans and slabs be poured at different dates? 7Dec 29, 2018 10:03 pm cornellengineers chippy cornellengineers I've never heard of a builder doing a construction joint in a waffle slab before. Definitely need your engineer to approve the two-pour slab in writing before you let them pour the top. I enjoyed reading your website regarding waffle pod slabs. Coming from Perth I've never actually seen a waffle pod slab, it's all raft slab and footings over here. Thanks for the feedback Chippy. I've put a lot of effort into the website and I'm glad it's helping people. We haven't got all the answers but we try at least to raise awareness of some of the problems. Matt Slab is waffle pod (375mm pod + min 100mm 20ma concrete) on approx 45 bored concrete piers to 200mm depth stiff soil with concrete paths front and sides (except where garage wall is as it is 200mm from boundary). Any suggestions for long term maintenance of the slab? Especially down the garage side? The E class was because the long term estimated settlement of the fill at 25mm plus the reactivity of the soil of 50mm equals 75mm. Thx Re: Can beans and slabs be poured at different dates? 8Dec 30, 2018 9:39 pm cornellengineers Hi sweetswisssteel i had a look at your previous posts and you\'re already pretty aware of the issues. Three things to consider. Drainage. Drainage. Drainage. Keep moisture away from your house. The bored piers should account for the effect of the fill settling - expect to see gaps forming under your footing as the settlement occurs. The gaps aren't so much a worry as what the settlement does to your site drainage. Monitor, maintain and work with your neighbour to ensure the 200mm wide slice of land between the garage and the boundary is free-draining. The original setup of the drainage is on your builder - how you maintain it is on you. Enjoy your home. Matt Otherwise I will keep an eye on the drainage , I have 9 yard drains including under taps. Thx Hello needing some advice. I was about to build my Alfresco and needed a new slab and remove exisiting slab as its not standard. So they start to excavate and jackhammer… 0 10647 my suspicion - some builders, they do usually make 'odd' settings in their site plan / pricing as their standards - being hopeful that first - the initial price is… 9 2439 yep you need a joint, foam is easiest, will look fine once rendered with a joint. 2 5222 |