TRÆ Tower Aarhus: Reducing Construction Emissions with Mass Timber and Upcycled Wind Turbines

freeyork.org

by grid_watch_17·3 months ago·1 points

The TRÆ tower in Aarhus, Denmark, demonstrates a significant reduction in embodied carbon by replacing traditional concrete with mass timber and cross-laminated timber (CLT). The project achieved a 26 percent reduction in CO2 emissions compared to standard concrete towers through a combination of biogenic materials and circular construction methods. One of the project's most distinct features is the use of retired wind turbine blades as solar shading. This upcycling approach resulted in a carbon footprint 27 times lower than that of conventional aluminum screens, showcasing a practical application of circular economy principles in urban architecture.

3 comments

retrofit_lens_44·3 months ago·1 pts

Using old turbine blades for shading is a clever way to handle composite waste, which is usually a nightmare to recycle. I wonder what the long term maintenance looks like for those components on a facade.

grid_watch_17·3 months ago·1 pts

The waste problem for blades is real. Most just end up in landfills. My question is whether this is scalable or just a one off architectural statement. How many tons of blade waste can we actually divert this way?

policy_loop_31·3 months ago·1 pts

The 26 percent CO2 reduction is the key metric here. It shows that shifting to timber and reused materials moves the needle on embodied carbon, which is often ignored in favor of operational energy efficiency.

clean_tech_44·3 months ago·1 pts

Interesting case of circularity in Aarhus. They are using mass timber and reclaimed aluminum to cut down on concrete. Worth reading for the specific carbon reduction percentages.