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Research from MIT's Concrete Sustainability Hub shows carbon-neutral pavements are possible by 2050. But stakeholders of all levels must get involved in decarbonizing pavements to reach climate goals.
Almost 2.8 million lane-miles, or about 4.6 million lane-kilometers, of the United States are paved.
Massachusetts Institute of Technology Just along concrete’s gray surface, a chemical reaction is occurring. Known as carbonation, this reaction forms calcium carbonate, a benign chalk-like material, but it can also affect climate change. That’s because calcium carbonate forms when CO 2 from the air reacts with water in concrete pores, and then with calcium compounds in concrete – meaning that concrete is a potential carbon sink. Estimating the extent of its carbon uptake at scale, however, has proven difficult. In a new paper, MIT researchers investigate the carbon uptake of all pavemen...
Credits: Photo: Rodolpho Quirós/Pexels Previous image Next image Just along concrete’s gray surface, a chemical reaction is occurring. Known as carbonation, this reaction forms calcium carbonate, a benign chalk-like material, but it can also affect climate change. That’s because calcium carbonate forms when CO 2 from the air reacts with water in concrete pores, and then with calcium compounds in concrete — meaning that concrete is a potential carbon sink. Estimating the extent of its carbon uptake at scale, however, has proven difficult . In a new pap...
Credits: Photo: David Wilson/CC BY 2.0 Previous image Next image Pavement deterioration takes many forms. It can manifest in almost imperceptible flaws, like surface roughness, to much more evident distresses, such as web-like alligator cracks. While the causes of these distresses are numerous, one cause, in particular, can impose an intractable burden: the weight of a vehicle. In a prize-winning paper, Fengdi Guo, a PhD candidate at the MIT Concrete Sustainability Hub, helps clarify the layered relationship between traffic weight and pavement deterioration. ...