Abstract
We have developed a humidity self control material using zeolitic tuff mined at Kawanishi district in Fukui prefecture. Zeolite has a long history for ion exchangers, adsorbents, moleculer sieves and catalysts. In our experiments, the zeolitic tuff was ground and used as a pozzolan for a synthesis of C-S-H. The result shows a higher value of adsorbed water and IV-type (IUPAC) in the adsorption ⁄ desorption patterns; in contrast, those of zeolitic tuff are classified as I-type. We report the water vapor adsorption ⁄ desorption property of a coating material for textured finishes using synthesized C-S-H made from zeolitic tuff.
