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To get this done, we organised follow-up meetings, notably with
representatives of the CO 2
and circular design teams. To specify
possible additional improvements that could be realised higher on
the circularity ladder, I asked two experts with outsider perspective
and longstanding experience in concrete innovations to provide an
overview. They presented a broad spectrum of additional options
which were first discussed in a small focus group. This group
concluded that these options were valuable, but could only be
realised if the commissioning parties would take the lead together
with the builders. Their procurement process would have to be
adapted and include options higher on the ladder.
As the CO 2
execution team mainly consisted of material experts,
the first draft of their roadmap primarily presented innovations
in material composition, use and recycling. They argued that
implementation of the additional options was outside their locus
of control and they therefore could not guarantee successful
outcomes of those. Broadening the scope, however, would
mean that the CO 2
reduction potential could be increased from
approximately 10 to 20% up to at least 50 to 60%. Finally, after
several discussions, those options were integrated in the CO 2
roadmap. Some would cost more, others less or the same. Should
these additional options fall short, a list of back-ups is available.
Working on these additional options also had major impact on the
other execution teams, and they have since also incorporated them
into their roadmaps. To realise additional options, the steering
group is responsible for approaching the commissioning parties
and builders and convincing them to take action.
For all these initiatives, the seven executions teams, the team of
commissioning parties and the government are all expected to
finish their ‘homework’ before 1 January 2022, when phase 2 starts.
Some work still has to be undertaken, but it is clear what should be
done. The roadmaps of all execution teams are specified in more
detail and include innovations that lead to the formulated goals.
The innovations are divided into three categories. Those