Duncan62 Posted August 6 Share Posted August 6 Literally just asked my SE this too. I'll see what they say. Link to comment Share on other sites More sharing options...
gavztheouch Posted August 6 Author Share Posted August 6 2 minutes ago, Duncan62 said: Literally just asked my SE this too. I'll see what they say. Did you manage to get your slab poured? Link to comment Share on other sites More sharing options...
saveasteading Posted August 7 Share Posted August 7 Do not use short fixings. The first 25mm or so is discounted in calculations. After that it is approximately the square of three depth. So you must keep the depth. The occasional clash with a bar is normal Link to comment Share on other sites More sharing options...
Gone West Posted August 7 Share Posted August 7 11 hours ago, gavztheouch said: Anyone else build timber frame on a structural slab. How did you bolt the frame down? Our frame was fixed to the slab with 12mm threaded studs bonded into the slab with two part resin. Link to comment Share on other sites More sharing options...
gavztheouch Posted August 7 Author Share Posted August 7 20 minutes ago, Gone West said: Our frame was fixed to the slab with 12mm threaded studs bonded into the slab with two part resin. Did you have rebar where you were drilling? How did you deal with it? Link to comment Share on other sites More sharing options...
gavztheouch Posted August 7 Author Share Posted August 7 I should mention there is also 16mm glued in threaded rod for the hold down brackets with are Simpson htt4. There is about 27 of these, some are internal for racking walls. How worried should I be about drilling 140 holes in the slab. Any chance it will make a meaning full crack that will radiate much past the hole itself. Not that there is any alternative really. Link to comment Share on other sites More sharing options...
saveasteading Posted August 7 Share Posted August 7 2 hours ago, gavztheouch said: How worried should I be about drilling 140 holes in the slab. It is normal. You are right that it might encourage a crack on that line, but it shouldn't if the concrete is good. And it won't matter anyway. What are the odds of hitting a bar? With isoquick perhaps quite high but I don't know your details. The odd rod being cut won't matter either OR the anchor being a tad less deep. That is an advantage of threaded rod and epoxy...it cuts as required. But a hit fix will be very much quicker. Link to comment Share on other sites More sharing options...
Gone West Posted August 7 Share Posted August 7 3 hours ago, gavztheouch said: Did you have rebar where you were drilling? How did you deal with it? There was rebar where the holes were drilled. Used a Bosch concrete rebar cutter drill bit, not used it much though. 1 Link to comment Share on other sites More sharing options...
Duncan62 Posted August 7 Share Posted August 7 19 hours ago, gavztheouch said: Did you manage to get your slab poured? Yes. Yesterday. Garage perfect. House just about ok. Not ideal in places. Awaiting SE reply re anchors still 1 Link to comment Share on other sites More sharing options...
gavztheouch Posted August 7 Author Share Posted August 7 11 minutes ago, Duncan62 said: Yes. Yesterday. Garage perfect. House just about ok. Not ideal in places. Awaiting SE reply re anchors still That’s good. Are you using the concrete as your finished floor surface? Link to comment Share on other sites More sharing options...
gavztheouch Posted August 7 Author Share Posted August 7 Total cost for the slab was within £100 of £25000. 120 square metres This was for isoquick aggragates rebar concrete labour and pump to pour and finish concrete does Not include my time and the Sewar pipes and under floor heating Link to comment Share on other sites More sharing options...
Duncan62 Posted August 7 Share Posted August 7 3 hours ago, gavztheouch said: That’s good. Are you using the concrete as your finished floor surface? No. Fortunately. We had always planned to finish with resin or micro cement ~3mm layer. What's your finish? Link to comment Share on other sites More sharing options...
gavztheouch Posted August 8 Author Share Posted August 8 Planning on using the bare concrete. I don’t see why I couldn’t change to resin or micro cement so it’s nice to have that backup Link to comment Share on other sites More sharing options...
saveasteading Posted August 8 Share Posted August 8 5 minutes ago, gavztheouch said: Planning on using the bare concrete. Have you seen any examples? I am sceptical that it is a suitable finish. Link to comment Share on other sites More sharing options...
gavztheouch Posted August 8 Author Share Posted August 8 1 hour ago, saveasteading said: Have you seen any examples? I am sceptical that it is a suitable finish. Yeah our architects house has a concrete floor. I have always liked a concrete floor. My only major concern is staining Link to comment Share on other sites More sharing options...
saveasteading Posted August 8 Share Posted August 8 4 hours ago, gavztheouch said: major concern is staining Was it a ground (as in with a grinder) finish with the surface removed and stones exposed? I think you must then seal the surface with a special varnish to make it look bright and cheerful, and to keep stains from soaking in. Even water will emphasise any microcracks, which are unavoidable. Any random cracking would then look awful, so it is quite a skill. 4 hours ago, gavztheouch said: I have always liked a concrete floor So have I. Very useful for not falling through, even with a forklift. I admit never having tried for a pretty one other than by applying a topping of mineral or epoxy....or tiles. Link to comment Share on other sites More sharing options...
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