作者：Hiroyuki ASAKURA;
作者單位：Fiber Products Manufacturing Section, Okayama Works
刊名：品川技報
ISSN：0288-5395
出版年：2002-01-05
卷：0
期：45
起頁：121
止頁：122
分類號：TQ175
語種：英文
關鍵詞：
內容簡介Glass fiber and rock wool have been used to insulate buildings while making them fire resistant for many years. However these fibers shrink when exposed to direct flame because the melting point is below 1000 deg C. So they are not sufficiently fire resist. Ceramic fiber has been used to make buildings completely fire resistant recently.The Japanese Construction Law stipulates making the floor and ceiling fire resistant, so fires do not spread through the whole building. There are some holes in the floor and ceiling for setting electric cables, air conditioner piping, etc. After installing them, the hole is closed with an authorized installation method. Filling up the hole with rock wool is popular. However filling density varies with the worker.
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