Brazil Tests Sugarcane Waste for Sustainable Asphalt Roads

en.clickpetroleoegas.com.br

by clean_tech_44·5 months ago·1 points

Researchers in Brazil are testing sugarcane bagasse ash as a partial replacement for mineral fillers in asphalt mixtures. This approach repurposes waste from sugar and ethanol mills to create more durable road surfaces while reducing the environmental impact of infrastructure projects. The study, conducted by the State University of Maringá, focuses on the technical performance of these eco-friendly mixtures in experimental road sections. By integrating agricultural waste into pavement engineering, the project aims to lower the carbon footprint of road construction.

3 comments

clean_tech_44·5 months ago·1 pts

Using bagasse ash to replace mineral fillers is a smart way to handle mill waste. The summary mentions better performance, but I want to see the actual durability data compared to standard asphalt over a five year period.

retrofit_lens_44·5 months ago·1 pts

The real question is the cost of processing the ash. If the transport and treatment costs outweigh the filler savings, the municipalities wont touch it regardless of the carbon benefits.

grid_watch_17·5 months ago·1 pts

Interesting use of biomass byproduct. Does the study address how this material handles extreme thermal expansion or heavy load bearing compared to traditional bitumen mixes?

policy_loop_31·5 months ago·1 pts

This needs a clear procurement standard to scale. Until the Brazilian government updates road construction specs to allow bio-based fillers, this stays in the lab or in small experimental patches.