I'm pouring a 3.6 x 3 concrete slab on Thursday for a storage shed. How long should I wait before dynabolting timber framing to it?
Also how far away should I keep the reinforcing mesh from the edge of the pad?
Im not even a novice, but I've seen quite a few slabs poured in the last few years. The steel seems to be about 50-75mm from the edges. Slabs seem to take 2-4 days to cure depending on air temparature and how wet they are kept. My neighbours is enormous (12m x 8m x .5) and took 6 days of constant watering in November 16 before the builders came back on.
7 days should be pretty good IMO.
Those concrete screws are great - though you'll end up with a sore arm if you're driving lots of them in by hand (ie with a ratchet). I use an 18v battery rattle gun - which IIRC is something like 800 ft/lb, so will drive 10mm or larger anchors. Standard 18v impact driver manages 6.5mm anchors for small fixings. Ideally you'll need a small compressor with an air-gun too - to blow out the holes, though I've had some success with a garden blower.