On accelerated durability test of joint mortar in brick structure

Abstract

The inside of the significant proportion of bricks of cultural property of the specified building structures in Japan, is 66% at the of 75. Therefore, it is necessary to maintain and preserve the building. However, the evaluation method brick single strength properties, which are evaluated by a compression test method, for a joint is at present not been unified. Therefore, by using the actual formulation used in the actual building, to create a test piece was subjected to physical property research. As a result, that the test body contains many cement has high resistance to freeze-thaw and wet and dry repeatedly was confirmed. In addition, it was confirmed that the mass decreases as also cycle either freeze-thaw, wet-dry cycle test proceeds.