Spanish firms AMSA and ELSAN, with the Polytechnic University of Catalonia, replaced conventional mineral filler in bituminous road mix with biochar made from olive pits and pine waste. Lab results show comparable durability to standard asphalt, with up to 75% lower CO₂ emissions in the surface layer. The project won Barcelona's "21st Century Street" urban challenge.
(c) Leonardo del Sabio

Sinusubukan ng Barcelona ang aspalto mula sa mga buto ng olibo na nagbabawas ng 75% ng CO₂ emissions

ECOINVENTOS

Ang mga kumpanyang Espanyol na AMSA at ELSAN, kasama ang Polytechnic University of Catalonia, ay pinalitan ang mineral filler ng karaniwang aspalto ng biochar mula sa mga buto ng olibo at mga natirang pine. Ipinakita ng mga laboratoryo na katumbas ang tibay nito ng tradisyonal na aspalto, na may hanggang 75% na mas mababang CO₂ emissions sa surface layer. Nanalo ang proyekto sa urban challenge ng Barcelona na «Ang kalye ng ika-21 siglo».

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