Table 1. Mass loss rate of marble under different chemical environments and dry-wet cycle conditions.

Cycles/n	Acidic Environment (pH = 4)	Neutral Environment (pH = 7)	Alkaline Environment (pH = 10)	Acidic Environment (pH = 4)	Neutral Environment (pH = 7)	Alkaline Environment (pH = 10)
	mn/g	Dn/%	mn/g	mn/g	Dn/%	mn/g
0	557.01	0.00	552.95	0.00	554.90	0.00
5	555.50	0.27	552.50	0.08	554.01	0.16
10	555.35	0.30	552.51	0.08	553.95	0.17
20	555.10	0.34	552.40	0.10	553.70	0.22