Carbon Infuse
IN THE PRESS
What’s Happening
Hydration of cement pastes with calcium carbonate polymorphs
Our recent paper published in Cement and Concrete Research focuses on the hydration of cement pastes with CO2-sequestering calcium carbonate polymorphs. We observed that metastable calcium carbonate polymorphs, aragonite, and vaterite, were stabilized in cement matrix even after a prolonged curing age, which can strengthen their performance in carbon-storing concrete.
Rheology of cement pastes with calcium carbonate polymorphs
Calcium carbonate is a critical CO2-sequestering mineral in carbon capture, utilization, and storage (CCUS). It has three anhydrous polymorphs, including calcite, aragonite, and vaterite. Our paper published in Cement and Concrete Research explored the fundamental rheology of cement pastes with all three calcium carbonate polymorphs. Aragonite was found to significantly increase the static yield stress of cement pastes and has great potential to be used as a rheology modifier for 3D concrete printing.
CO2 utilization in built environment via the PCO2 swing carbonation of alkaline solid wastes with different mineralogy
We explored the carbonation of alkaline solid waste to produce calcium carbonate and silica-rich materials that can be used as cement substitutes to produce low-carbon concrete. This article demonstrates a pathway for the integration of CO2 sequestration and solid waste upcycling.
