ASTM - GEOTECHNICAL TESTING JOURNAL
Carbon Sequestration Capacity of Stabilized Soft Clays with Recycled Binders - GTJ20220221
This study estimates the CO2 sequestration capacity of Malmi clay stabilized with various recycled binders tested in laboratory conditions. Carbonation experiments were performed on stabilized samples using an autoclave and a carbonation chamber. Results revealed that the rate of carbonation differs significantly when carbonation is performed using a carbonation chamber or an autoclave. After 1 day in room temperature, the carbonated-stabilized samples were kept in the carbonation chamber for 13 days or in the autoclave for 5 days. Additionally, the reference samples were cured for 14 and 28 days to estimate the effect of CO2 sequestration capacity on curing time. Further, thermogravimetric analysis (TGA) was used to measure the CO2 intake.
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