Abstract
This paper deals with the effects of the type of joints, mortars and units on moisture transfer of Concrete Block(CB) members caused by model rain fall. We carried out the measurement of change of moisture content in various CB members sprayed water using electrode and thermocouple. According to the results, CB members used A type CB and butt joint were observed remarkable change of moisture content. This model rainfall was penetrated into CB member uniformly, and it was not observed the deviation of moisture content distribution.