Experimental Study on Stress-Strain Relationship of Mud-Plaster Wall with Different Additives

During 1999 Chi-Chi earthquake in Taiwan, numerous historical wooden buildings suffered serious damage. Most of these historical wooden buildings are important cultural property in Taiwan, and their damages are related to the mud-plaster wall. For investigating the structural behavior of the mud-plaster wall, and establishing the fundamental knowledge for seismic assessment, in this study, the most important element, mud, in the mud-plaster wall is tested with different additive, under compressive load, in order to observe the properties of these specimens. The obtained failure mechanism is discussed, and the followings results are concluded.

• Specimen with cement added will have best initial elastic modulus E.

• Specimen with hemp fiber added allows higher plasticity displacement.

• Specimen with clay added will not help increase the strength.