Development of Maintenance and Conservation Methods for historical Architecture using plaster wall materials

Part1 Performance Evaluation by Nondestructive and Destructive testing of Lath and Plaster Ceiling

Abstract

This study focused on the plaster ceiling. In experiments, we prepared a specimen simulating the plaster ceiling, to evaluate the relationship between plaster mix proportion and breaking strength. We prepared a plurality of specimens with different mix proportion (content rate of sand and fiber) and in order to evaluate the relationship between strength and workability, we conducted the experiment: destructive test and non-destructive testing.Based on these results, to evaluate the durability and damage potential of the building, it has been found that it is unnecessary to damage. In addition, by to optimize the use of materials, we can expect the protection of authenticity.