Carbonation Coefficients from Concrete Made with High-Absorption Limestone Aggregate

Table 4

Carbonation depth measurements and standard deviations (mm).

Mixture	Days of exposure at 4% CO2
	15		37		51		112
	𝑥	𝜎	𝑥	𝜎	𝑥	𝜎	𝑥	𝜎
0.80	15.7	1.0	37.5	—	—		—
0.70	13.7	1.6	24.2	1.4	37.5	—	—
0.62	10.8	1.3	20.2	1.3	23.1	1.0	n.d.
0.55	7.8	1.2	14.6	1.4	n.d.		22.3	1.3