Primary School

A new primary school was built downtown. It featured 20 cm thick reinforced concrete floors and either 15 cm concrete walls or 12 cm plasterboard partitions mounted from floor to floor between regular classrooms. Reinforced concrete (22 cm thick) was used for the music room. An acoustic absorptive ceiling was applied in each classroom, as well as in the corridors.

The clinch came from the neighborhood: People were complaining about the noise from the mechanical equipment (especially the boilers), as well as from the shouts in the gymnasium and recreational areas. The mechanical equipment was duly fitted with silencers, and proper thought was given to the sound insulation of the gymnasium. This led to mechanical ventilation (so as to avoid a direct opening), and thick windows with glazing on the outside and a metacrylate on the inner side. The recreational areas were treated to a shock-resistant absorptive noise barrier and absorptive baffles on top.

College

A new college was built in a small town. It featured 20 cm thick reinforced concrete floors and either 15 cm concrete walls or 12 cm plasterboard partitions mounted from floor to floor between regular classrooms. Reinforced concrete (20 to 25 cm thick) was used for specific rooms, such as workshops and music rooms. An acoustic absorptive ceiling was applied in each classroom as well as in the corridors.

 
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