Filcor 20 EPS was specified in two different areas; to fill the void within the existing brickwork at the base of the escalators thus reducing the volume and weight of concrete required and to help build up the steps between the two floor levels. Due to the irregular shapes required and to reduce installation time on site, the infill material was pre-cut to fit between the existing brickwork walls. To create the complex radius of the steps, the Filcor 20 EPS was supplied in sheets, cut at the predetermined angles and installed in multiple layers. Reinforcement was then positioned above the Filcor 20 EPS, with formwork positioned at the perimeter to enable the pouring of the concrete to the requisite depth. Once completed the concrete steps will be tiled to match the surrounding floor areas on both the lower and upper levels.