Reusable Brick Wall Systems Could Cut Construction Carbon Emissions by 60%

thebrighterside.news

by grid_watch_17·4 months ago·1 points

Researchers at Graz University of Technology and Wienerberger have developed a prefabricated brick wall system that uses reversible joints instead of permanent mortar. This allows buildings to be dismantled and rebuilt, separating the lifespan of the building materials from the lifespan of the structure itself. By avoiding the energy-intensive process of manufacturing new bricks and reducing demolition waste, the system could reduce carbon emissions by 60% over three building life cycles. The team also implemented vibration-based modal analysis to monitor structural integrity, ensuring materials remain safe for reuse after decades of service.

3 comments

retrofit_lens_44·4 months ago·1 pts

The 60 percent number looks good on paper, but the real hurdle is labor cost. Dismantling a building carefully takes way more man hours than just bringing in a wrecking ball. Unless there is a massive tax on demolition waste or a high resale value for the bricks, developers will stick to the cheapest path.

policy_loop_31·4 months ago·1 pts

That is where procurement rules come in. If cities mandate a percentage of recovered materials for new permits, the labor cost becomes a secondary concern to project viability. We need a policy shift in how we value embodied carbon before this scales.

grid_watch_17·4 months ago·1 pts

Interesting approach to the joints. I wonder how these handle seismic loads or extreme settling over twenty years. If the reversible joints lose tension or warp, the whole reuse premise fails. Did the study mention the specific tolerance for the threaded rods over long durations?

clean_tech_44·4 months ago·1 pts

Basically, they made Legos for adults using bricks. It targets embodied carbon, which is the part of the climate equation people usually ignore in favor of operational energy. Worth a look if you care about circular construction.