Along the edge of the tray wash slab on gridline 3 the detail is for a bearing shelf of minimum 150mm. I would suggest that you can construct a bearing shelf at the edge of this slab for our slab to sit on. Will there be any forklift traffic along the junction of this slab and the twintec slab. If so then maybe an armour joint should be installed. Our design engineer and draftsman will consider your query and respond on Tuesday as Monday is a holiday in our office