NOt much to a slab-on-grade. Mostly depends on your application. Commercial/induatrial vs. residential. Typically a 5" slab reinf'd w/6x6-8x8 WWM is more than adequate for slab-on-grade. However, make sure your soil is compacted properly. A vapor barrier over crushed stone wouldn't be a bad idea, either.
This subject has been extensively received attention in these forums and Ron,JAE etc friends once gave me very good inputs
So let me direct you to thread 592-4955 which I posted in Concrete engineering forum asking about the subject
You will find the responses there very helpful.
When it comes to software(I am against blind use of) I know that slabs on grade can be modelled by plates on springs (where necessary) as a method accepted by many institutions. You are not likely to need this complication though. As for books, get anything from PCA.
Hi nonso,
For grade slab of water retaining structure the minimum thickness should be ((Height of water(in mm)/40 + 50 mm))
i.e. if the water height 5000 mm then minimum thickness should be 5000/40+50 = 175 mm. (considering no ground water table)
For grade slab of basement, the thickness will based on the ground water table .
There are some great resources from the US Army
Corps of Engineers. Everything from concrete pavement design manuals, to slabs subject to heavy loads. Most of their manuals are available for download straight from the site. An excellent reference area for a lot of civil engineering topics.
