Fig. 3From: A laboratory experiment on salt weathering by humidity change: salt damage induced by deliquescence and hydrationWeight gains in the first high-humidity period. The value represents the amount of water absorbed into specimens during the high-humidity conditions. The specimens with NaCl showed the largest absorption. The specimens with MgSO4 showed greater gains in weight than the specimens with Na2SO4 or without salt (distilled water)Back to article page