The simulative experiment shows that tuff fillings is obviously dissolved under the acid conditions.And with higher acid concentration, the dissolving ability of tuff fillings is intensive.

• 溶性模拟实验表明，在酸性水环境中，凝灰质填隙物发生明显溶蚀，并且酸性介质浓度越高溶性作用越强烈。