Throughout the entire ICC project, concrete was used extensively as a finished surface, both internally and externally. This required a very high level of finish to create quality spaces; Class 2 concrete was integrated into the pre-function areas. 
The southern ICC Exhibition space used precast concrete for a uniquely designed panelised wall, and where this was not feasible, insitu concrete was cut post-pour to give a seamless appearance requiring a strong knowledge of concrete and attention to detail. There are post-tensioned structural beams spanning large distances to support exhibition hall capacities including a complex spiral concrete structure designed to accommodate fully loaded articulated vehicles to both the lower and upper halls. 
The ICC Sydney Theatre used concrete within its public spaces with the creation of uniquely formed concrete V columns in the upper levels to create a visually interesting and exciting structural solution. End unit precast concrete seating plats for the Theatre had to span more than 20m and construction sequencing was programmed to ensure these lifts were carried out prior to enclosure of the seating bowl. 
The judges felt that this project consisted of every type and use of concrete possible whilst it was designed and built to the highest seismic (category four) and highest dynamic performance, to be a refuge in Sydney in case of extreme earthquakes.
The buildings utilized insitu, precast, off-form and encased concrete in the most innovative ways and at massive scale. In all circumstances they were constructed to an excellent standard.