Probably the most famous sports hall in the Czech Republic - O2 Arena - was opened in 2004 and its maximum visitor capacity is 20,000 people. It is a huge space, which of course requires some reconstruction after years of operation.
BOCA was in charge of replacement of the original paving with a modern and durable surface made of terrazzo.
In terms of material, terrazzo is a mixture of cement, crushed stone and dyes, which are joined together into a mass, which is poured onto the substrate and forms the final floor. The combination of different colors of crumb and binder creates unique surfaces - whether sanded smooth and polished to a high gloss, or with a rougher surface.