J-GLOBAL ID:200904049018475276  Research Project code:9911004485 Update date:Dec. 15, 2003

Crazing resistance of the glazed roofing tile

粘土瓦の耐候性向上研究 -粘土瓦の化学的耐久性向上研究-
Study period:1998 - 1999
Organization (1):
Investigating Researcher (3):
Research overview:
Clay roof tile is historical and reliable roof cover, but new issue such as discoloration of the glaze caused by acid rain is happening, and more advanced weather resistance is required. So, from the point of view of physical character of heat expansion and water absorption, we try to improve the weather resistance of glaze for tiles by investigating on the influence that the composition of glaze including oxide silver colored glaze and the firing condition giving on weather resistance, or the injection of glaze caused by hydrate expansion of the tile material.
Keywords (9):
weather resistance ,  tile ,  cover coat ,  glaze ,  roof cover ,  acid rain ,  discoloration ,  hydrate expansion ,  injection
Research program: -

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