The ambition is for our cooperation with Aalborg Portland to be developed to also cover the demolition waste and waste from building sites that currently end up at the municipal recycling centres.
This is a more complicated waste fraction as Troldtekt cement-bonded wood wool has a long useful life, and end-of-life acoustic panels can therefore easily be 50-70 years old. Because we have no way of knowing whether the panels have been treated with harmful chemicals during that period, they cannot be returned to the biological cycle. Cement production is a thermal process that renders harmless any surface treatments, and end-of-life Troldtekt panels can therefore be added to Aalborg Portland’s cement production without any problems.
However, we need to find the right logistics partners who can help collect cement-bonded wood wool from Danish recycling centres. In 2021, we will be launching a pilot project together with the Municipality of Ringkøbing-Skjern – and in the next phase with a total of seven Danish municipalities. The project is intended to pave the way for scaling the scheme.