Planning to build a platform to cast a 10cm concrete slab over a cavity. The space will primarily be used as a patio.
The area is 15.70m x 5m = approx. 78.5sqm x 0.10cm/concrete = 20.5 tons / approx. 262kg sqm The concrete slab is intended to rest on 3 beams.
I plan to place a beam with 6 pillars (one at the ends and then approximately every 3 meters).Can anyone help?