Browse Forums Landscape & Garden Design 1 Oct 26, 2021 3:52 pm I'm working on the slab perimeter and am going to put in a 900mm gravel skirt around the house on top of some geofabric. I've got an ag-drain at about 900mm so I want to grade it from the slab to the ag drain. I've bought a hand tamper. The level around the slab is uneven so my question is how do you go about adding fill and tamping it. Do you just put more soil / clay in the depressions near the slab and simply tamp it on the slope/? Trying to work out if just the process of tamping is enough for the water to flow away or I need particular materials e.g. heavy clay. Am I just trying to ensure the water doesn't pool next to it, but it's always going to get some water soaking in and that's OK? Re: Hand tamping grade around slab edge. 2Oct 26, 2021 9:41 pm I would be using builders plastic rather than a geofabric and then stabiised sand (1 part cement to 20 parts sand) 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. Generally you don’t need supporting piers/blocks under garage/non-habitable floating GROUND slab (That has no load bearing structures over) if it has good soil bearing… 2 11837 Interesting. You have great clearance to damp proof course all the way around which is rare with so many cowboy landscapers and concreters. Is there sufficient fall… 2 13505 If there have been changes, variations, during construction then the drawings should be revised, the building permit amended and the current, as built drawings given to… 2 22528 ![]() |