Current Opinion in Green and Sustainable Chemistry · 2022 · 149 citations · 53 references
Materials ScienceChemical EngineeringCarbon SequestrationEngineeringCement ManufactureCementationCo2 StorageCivil EngineeringConcrete TechnologyFiber-reinforced Cement CompositeCementitious MaterialsConstruction MaterialsMan-made Co2 EmissionsMineral ProcessingCement-based Construction MaterialConstruction EngineeringCement-based ConcreteCo2 Fixation
Cement production accounts for about 8 % of anthropogenic CO₂, yet mineral carbonation of Ca‑ and Mg‑rich cementitious materials and magnesium silicates can sequester CO₂ long‑term, potentially yielding CO₂‑negative construction products, though scalable, environmentally friendly processes remain underdeveloped. The study aims to investigate the properties, reaction mechanisms, mix designs, mechanical performance, and durability of these novel carbonated construction materials.
The production of cement is responsible for about 8% of man-made CO2 emissions. CO2 fixation by mineral carbonation in Ca- and Mg-rich raw materials such as cement-based concrete in various stages of its lifetime and magnesium silicate-based rocks (e.g. olivine) can provide a significant and long-lasting sink of CO2. Carbonated material can be used in novel construction materials, which potentially could even be CO2 negative. Despite first applications beyond pilot stage, further research is needed to reach economically and environmentally friendly processes. The properties of the novel construction materials, their reaction mechanisms, suitable mix designs, mechanical properties, and durability need to be explored further.
53
Supplementary cementitious materials
Barbara Lothenbach, Karen Scrivener, R.D. Hooton · Cement and Concrete Research · 2011 · 2.9K citations · Full text
Advances in alternative cementitious binders
Maria Juenger, Frank Winnefeld, John L. Provis et al. · Cement and Concrete Research · 2010 · 1.7K citations
Materials Science, Cementation, Alternative Cementitious Binders +5