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越境企画
Recycled Aggregate Does Not Make Concrete Carbon-Free: The Hidden Environmental Cost of Cement
Recycled aggregate can reduce quarrying and construction waste, but it cannot eliminate the CO₂ released during cement production. True decarbonisation requires a life-cycle approach. -
越境企画
Can We Build Cities Without Sand? Recycled Aggregate and the Future of Circular Construction
Cities consume enormous amounts of sand while discarding old concrete. Recycled aggregate could turn demolished buildings into resources for the next generation of urban development. -
越境企画
Where Does the Sand Beneath Our Cities Come From? Construction, Coastal Erosion, and the Global Sand Crisis
Cities depend on enormous quantities of sand and gravel for concrete, roads, and infrastructure. This article explores how construction demand is reshaping rivers and seabeds, accelerating coastal erosion, damaging ecosystems, and creating a global need for sustainable sand management.
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