Table 1.

Means and standard deviations of the assessed pH in the evaluated periods. Different lowercase letters in rows indicate statistically significant differences among the materials in each period (p<0.05). Different uppercase letters in columns indicate statistically significant differences among the periods for each material (p<0.05)

	WPC	WPC/15%	WPC/20%	WPC/30%	WPC/50%	Water
15 days	11.16±0.15aA	11.22±0.10aA	11.12±0.13aA	11.10±0.13aA	11.04±0.14aA	6.87
30 days	11.83±0.13aB	11.85±0.07aB	11.75±0.13aB	11.72±0.13aB	11.70±0.07aB	6.87
60 days	11.65±0.90aB	11.91±0.08aB	11.61±0.96aB	11.49±0.96aB	11.39±0.92aB	6.87

WPC=White Portland cement