Study on selection method of ceramic masonry units to exposure conditions

As a selecting method of ceramic masonry units recommended for environmental conditions, a method using its strength and water absorption is shown in JASS7, but the reason of the method is not clear. In this paper, various evaluation methods of the quality of the ceramic masonry units (Burny’s method, JIS R 1250 method, three kinds of freezing-thawing test) and an accelerated chloride deterioration test were carried out, and the results were compared with the method described in JASS7. As a result, the evaluation method described in JASS7 is considered to be appropriate.