Experimental Study on Drag Mark Technique in Finishing Method for Earthen Wall

Part 2. Results of drag mark experiment and examination of wave pattern generation mechanism

Abstract

The drag mark technique is a finishing method applied to the outer walls of Sukiya architecture. The painted soil wall has a wavy pattern on the surface. The trowel used is a drag trowel. There are various types of this, such as a shape with a round bottom and a curved edge. Due to the difference in the shape of the trowel and the skill of the plasterer, the height and number of the wave patterns will differ, resulting in various textures. So far, little academic knowledge has been compiled for this dragging technique. The mechanism of wave pattern generation is unknown. In this study part 2, we reported the results of drag mark experiment and the examination of wave pattern generation mechanism.