Influence of Tg-Dta and Toc Methods on Measurement Accuracy of Fixed Amount of Co 2 in Cementitious Materials

Key Points

• This research aims to analyze the accuracy of CO2 fixation measurements using TG-DTA and TOC methods in cementitious materials.
• Used cement paste samples that simulate cement hydration.
• Measured CO2 fixation using TG-DTA and TOC methods.
• Compared results to theoretical CO2 fixation values.
• TOC measurements showed good agreement with theoretical CO2 fixation values.
• TG-DTA measurements had larger discrepancies from theoretical values, especially due to dehydration and decarbonation reactions.