Browse Forums Building Standards; Getting It Right! Re: M-class Slab on P class soil 21May 30, 2018 11:38 am Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs M-class Slab on P class soil 23May 30, 2018 10:58 pm Hi bentleighboy I relied on my builders geotech too. When I asked him for his final report after house was finished he referred me to the builder. And I read detailed report and it says I take no responsibility for anything.... blah blah. Re: M-class Slab on P class soil 24Oct 04, 2018 12:53 pm bentleigh_boy kirashogun bentleigh_boy, I PMed you the geotech engineer my builder used. They seem to be pretty good. Thank you kirashogun, much appreciated. Will talk to them for sure. Can I ask which builder you used and where did you build? Like ⋅ Add a comment ⋅ Pin to Ideaboard ⋅ Hi Bentleigh_boy, Our soil test is classification P due to KDR, but is underlying S classification. We get our contract and site costs later this month, but I am expecting a slab for S classification with maybe provision for piers if post demo identifies soil issue. Re: M-class Slab on P class soil 26Oct 05, 2018 11:36 am StructuralBIMGuy @adje Have the fill/soil properly compacted and checked by your engineer, it will not require piers hth Thanks @StructuralBIMGuy Re: M-class Slab on P class soil 27Nov 15, 2018 9:42 am StructuralBIMGuy @adje Have the fill/soil properly compacted and checked by your engineer, it will not require piers hth Just got the prelim and they are recommending screw piles - 11.5k although they will be doing a further survey, hydraulic and soil test once demolition is done. My concern is they want to fix price the site costs prior to demolition and secondary test. Thoughts structuralBIMGuy ? Re: M-class Slab on P class soil 28Nov 15, 2018 5:01 pm Unlikely to change if they already have recommended screw piles before knock down.Problem happens when they don't recommend deep footings after the initial soil test while the house is still there and then recommend deep footings with the second soil test after the knock down when you are committed. Re: M-class Slab on P class soil 29Nov 16, 2018 12:27 pm adje StructuralBIMGuy @adje Have the fill/soil properly compacted and checked by your engineer, it will not require piers hth Just got the prelim and they are recommending screw piles - 11.5k although they will be doing a further survey, hydraulic and soil test once demolition is done. My concern is they want to fix price the site costs prior to demolition and secondary test. Thoughts structuralBIMGuy ? Await the independent second test don't lock in piers. hth Designer,Engineer (Civil,Const & Envir),Builder,Concrete & Masonry Contract.Struct Repairs The Soil classification has little to do with piers. The purpose of the classing of the soil is to identify the clay content and the "average expected range of movement… 2 10339 I don’t think so as the floor area over 300 square meters then it is class 3…. 12 18294 DIY, Home Maintenance & Repair I'm in WA and our sandy soils make drainage a bit easier but this is what I'd be doing. Dig down to your footings and let the wall dry out. Clean it all well by brushing… 1 6113 |