Jenna and Nick knew laying a new foundation in their abandoned home was going to be a tall task, but first they had to remove a concrete pad.
You'll need to smooth the entire surface of the freshly poured slab, then create grooves in it to act as control joints. The more complex option is to build a frost-proof concrete foundation ...
But on a high-rise, you need to build one floor, then the next ... contractors will be then able to start doing slab on grades and other columns. The faster you can get the core independent ...