Decarbonising cement and concrete production: Strategies . . . Carbon Capture and Storage (CCS) is a promising technology for reducing carbon emissions in cement plants, which are significant contributors to greenhouse gas emissions Cement production involves the combustion of fossil fuels and the calcination of limestone, leading to the release of large amounts of carbon dioxide (CO 2) into
ZeroCAL: Eliminating Carbon Dioxide Emissions from Limestone . . . To address these challenges, this paper suggests a transformative near process-CO 2 -emissions-free pathway that makes use of limestone within an aqueous electrochemical paradigm to produce portlandite (Ca (OH) 2)─a “drop in” zero-carbon feedstock for PC production
Sustainable concrete is possible – here are 4 examples . . . However, there are a number of proven ways to significantly reduce the amount of clinker needed to make cement and concrete, and one of the most promising solutions is called LC3 – Limestone Calcined Clay Cement – which can reduce CO2 emissions by around 40% compared with conventional cement
Solving Cement’s Massive Carbon Problem - Scientific American Replacing fossil fuels with renewable energy sources and raising efficiency across production could reduce the carbon footprint by up to 40 percent Using different raw materials for clinker
Sustainability and Green Cement | Science in Cement CO₂ Emissions: Cement production accounts for approximately 7-8% of global CO₂ emissions Energy Consumption: High energy demands during clinkerization Raw Material Depletion: Intensive use of limestone and other natural resources
Cements Concrete Climate Problem: Innovations Aiming to . . . Process Emissions from Calcination (~50-60% of total cement CO₂): This is the largest source and inherent to the chemistry Limestone (primarily calcium carbonate, CaCO₃) is heated to extremely high temperatures (around 1,450°C or 2,640°F) in a rotary kiln