Industrially interesting approaches to “low-CO2” cements ☆

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Life-cycle assessment of high-speed rail: the case of California (2010, positive): “Decisionmakers who invest in CAHSR can reduce the mode’s total GHG emissions by using lower-CO2 concrete mix designs (Gartner 2004) or by reducing system concrete use when designing tracks.”
Calorimetric and thermogravimetric study on the influence of calcium sulfate on the hydration of ye’elimite (2010, background): “[ 1 , 2]. In contrary to Portland cements, where the main properties like strength are due to the presence of calcium silicate hydrates, CSA cements are systems based on calcium aluminate sulfate hydrates.”
Zeta potential, gel formation and compressive strength of low calcium fly ash geopolymers (2015, background): “Cement production alone contributes between 4% and 8% of the current anthropogenic carbon dioxide (CO2) emissions worldwide [2–4], with the production of 1 tonne of cement producing from 0.”
Recent Progress in Green Cement Technology Utilizing Low-Carbon Emission Fuels and Raw Materials: A Review (2019, background): “However, strength development through aluminosilicates as dominate phase and low porosity can distinguish it from other pozzolanic materials [40].”