Workshop Floors (Flat Work Construction) The task to complete the 600 square meters of workshop floor using 40mpa concrete 200mm thick slab. Steel fixing double layer of reinforcing mesh RF82. Footing with reinforcement tied into concrete slab with N12 Concrete apron formed and reinforced with RF82 double layer and N12 bar every 1.2 meters. Compacting concrete using Poker Vibrator. Apron formed and reinforcing ready for placement of concrete slab using 40mpa concrete 200mm thick slab. Screeding the concrete flat; even and to the required level. Using an aluminium screed takes some practice. Backing up agitator truck to concrete pump. Crack control bars 1 meter in length paced every 400 mm along footing. Setting out the wet areas. Finishing may require three or four trowelling passes of the surface. It is important to commence finishing at the right time. Finishing concrete with trowelling machine and trowelling edges by hand.