Performance of CO2-Cured Alkali-Activated Slag Pastes During Curing and Exposure

International Journal of Concrete Structures and Materials

Table 3 Mix proportions and experimental sequence for samples

Sample label	Activator-to-binder ratio	Binder	Activator	Pre-conditioning	CO₂ curing	After CO₂ curing
Sample label	Activator-to-binder ratio	Binder	Activator	0–3 h	4 h–3 d	4 d–28 d
5M-WB	0.45	BFS	5 M KOH	Drying	CO₂ chamber	Water bath
5M-SW	0.45	BFS	5 M KOH	Drying	CO₂ chamber	Immersion in seawater
4M-WB	0.45	BFS	4 M KOH	Drying	CO₂ chamber	Water bath
4M-SW	0.45	BFS	4 M KOH	Drying	CO₂ chamber	Immersion in seawater
3M-WB	0.45	BFS	3 M KOH	Drying	CO₂ chamber	Water bath
3M-SW	0.45	BFS	3 M KOH	Drying	CO₂ chamber	Immersion in seawater

CO₂ chamber: 20% CO₂ concentration, 23 °C, and 80% relative humidity; Water bath (container with heated water maintained at a constant temperature; samples are not contacted with water): 23 °C