Browse Forums Paving & Concreting Re: What do you use for boxing up under a concrete slab 2Oct 27, 2016 8:15 pm 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: What do you use for boxing up under a concrete slab 4Nov 02, 2016 8:10 pm It sounds like you need to build retaining walls around your slab. They do not have to be made of timber. Once this is done crushed rock compacted every 100mm of depth added as mentioned above. Driveways and Exposed Aggregate Specialists, Melbourne's Eastern and Northern Suburbs http://www.theconcretefirm.com.au http://www.exposedaggregate.net.au Re: What do you use for boxing up under a concrete slab 5Nov 02, 2016 10:54 pm Rory It sounds like you need to build retaining walls around your slab. They do not have to be made of timber. Once this is done crushed rock compacted every 100mm of depth added as mentioned above. Thanks for your input Rory. I take it your suggesting I make the retaining walls first so that I can remove any internal shutters then fill and compact then do the slab. I wont be doing it myself but I am getting good info on ways it can be done for when I get a contractor. My planning approval should be in any day now. To err is human but to really mess things up, you need a computer. Re: What do you use for boxing up under a concrete slab 6Nov 03, 2016 10:59 am Its a bit hard to advise as I cant actually see the job but im sure you can get a concreter to come in and quote to do both the retaining and pour the slab. Try emailing a photo of your job to a few local concreters and uif they are up for the job get them to come and price it up. Driveways and Exposed Aggregate Specialists, Melbourne's Eastern and Northern Suburbs http://www.theconcretefirm.com.au http://www.exposedaggregate.net.au Re: What do you use for boxing up under a concrete slab 7Nov 03, 2016 5:47 pm Thanks Rory, at present I am chasing up quotes for the materials for the carport and then I will seek out a builder. I mainly wanted some info for my own knowledge on how it could be done. To err is human but to really mess things up, you need a computer. The coupling, which is made from flexible PVC, needs to comply with AS/NZS 4327 which specifies the requirements for metal banded flexible couplings used in low-pressure… 1 475 4 5234 |