Norimoto Kashino

A BASIC STUDY ON THE REPAIR WORK PLAN FOR PUBLIC BUILDINGS AS THE TOOL OF ITS MAINTENANCE METHOD

Many public primary school buildings were built in high economic growth period in Japan. These buildings have some defects in building frames or concrete. These are difficult to reconstruct because of financial reasons and administrative affection so on. It is needless to say, appropriate maintenance plan and design for school buildings are necessary, also it is necessary to survey and evaluate present conditions of the buildings. In this study, field survey was carried out on public primary school buildings built from 1970th to the middle of 1980th. Evaluate to these buildings for the way which based on the result of the investigation. In addition, importance is revalued to it, and influence in the repair work plan. According to these attempts, confirmed the influence of importance in the repair work plan.

Degradation Models for Ten-year Weathering of Architectural Coatings

abstract An outdoor exposure-testing program for architectural coatings was conducted in Tsukuba from 1987-1997. Observed gross retention of samples set horizontally, 5-deg. south and 30-deg. south was on average severer than that of 90-deg. south, while the conditions of 90-deg. north are more moderate. The lightness of white samples decreased during the early part of the first year and was almost constant, thereafter. Delta L* of 90-deg. south and 90-deg. north is smaller than that of horizontal, 5-deg. south and 30-deg. south. Koike and Tanaka′s equation is a more appropriate analytical method regarding the weatherability of exposed paints and coatings than the conventional system, which uses solar UV.