Abstract

The Chungung-dong 5-storied pagoda(Treasure No. 12) in the Hanam, Korea was studiedon the basis of petrological weathering and deterioration diagnosis. Frontal part of the pagoda is looked out on the N30^?W. Constitution rocks of this pagode show augen gneiss and biotite granite. Host rock of the pagoda was highly exfoliation and discoloration, therefore most rock-forming minerals were altered to the clay minerals due to the mineralogical and chemical weathering. Open cavity and rock surface occur partly green and black patchs because of contamination by algae, lichen and moss, and the lower part of the pagoda is transition to the some weeds. This biological problems are need for cleaning and chemical treatments. For the structural stability, the pagoda is rebuilt without open gap between the each rock materials. All iron plates eliminate from the difference gap of the rock materials, and properly conservation treatments need to be repaired petro-filler for stone cultural properties and water curtain for the humidity attenuation of the ground.

Keywords

deterioration diagnosis, augen gneiss, biotite granite, structural stability, conservation treatment