Fig. 7From: A laboratory experiment on salt weathering by humidity change: salt damage induced by deliquescence and hydrationWeight (a) and Equotip rebound value (b) measured during the continuous wetting/drying experiment. The solid line represents the results for Oya tuff, and the dotted line represents those for Aoshima sandstone. The symbols correspond to the following combinations: filled circles, NaCl; triangles, Na2SO4; squares, MgSO4; open circles, no salt (distilled water)Back to article page