The walls and concrete slabs from the old building are recycled, and the sorting of materials and crushing of concrete take place on site. The resulting product will be re-used in the recycled concrete to build the slurry wall and sill plate – a unique operation on Lausanne construction sites.

Dancers perform at the 'Love Sport Tokyo 2020' segment during the Closing Ceremony on Day 16 of the Rio 2016 Olympic Games at Maracana Stadium on August 21, 2016 in Rio de Janeiro, Brazil.

Dancers perform during the 'Love Sport Tokyo 2020' segment during the Closing Ceremony on Day 16 of the Rio 2016 Olympic Games at Maracana Stadium on August 21, 2016 in Rio de Janeiro, Brazil.

The '4 Years to Go' to the Tokyo 2020 Olympics Countdown Event

Dancers perform during the 'Love Sport Tokyo 2020' segment during the Closing Ceremony on Day 16 of the Rio 2016 Olympic Games at Maracana Stadium on August 21, 2016 in Rio de Janeiro, Brazil.

Dancers perform at the 'Love Sport Tokyo 2020' segment during the Closing Ceremony on Day 16 of the Rio 2016 Olympic Games at Maracana Stadium on August 21, 2016 in Rio de Janeiro, Brazil.

A general view at the 'Love Sport Tokyo 2020' segment during the Closing Ceremony on Day 16 of the Rio 2016 Olympic Games at Maracana Stadium on August 21, 2016 in Rio de Janeiro, Brazil.

Dancers perform at the 'Love Sport Tokyo 2020' segment during the Closing Ceremony on Day 16 of the Rio 2016 Olympic Games at Maracana Stadium on August 21, 2016 in Rio de Janeiro, Brazil.