Browse Forums DIY, Home Maintenance & Repair 1 Aug 14, 2016 12:55 pm Hi Im trying to work out how many cement bags, aggregate and sand mix id need Wanting to do a slab for a shed that is 4.8mx1.3m @ 75mm thick Is anyone able to advise how i calculate this, or even be able to work it out for me? thank you Re: Shed Slab 2Aug 14, 2016 7:31 pm That's around 0.468 cubic m (plan for 0.5m3 which means 1200kg) For a typical mix the proportions are [ul][li]Cement = 1 part.[/li] [li]Sand = 2.5 parts.[/li] [li]Stone or gravel = 3 parts.[/li][/ul] So we are talking about 180kg cement 450kg of sand 540kg gravel +water 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. One corner of my shed slab will be directly over a 1400mm diameter concrete soakwell. Is it feasible to fill the soakwell with concrete then lay the shed slab over the… 0 651 Is it possible to render an old corrugated iron shed.I have heard that it can be done if it is covered with chicken wire first.Not sure of the ratio of the render mix and… 0 4896 Thanks. Yeh ideally that would have been good, but have progressed too far now. Hoping some well placed internal walls fixed up into the battens will provide some… 2 5402 |