Glass fiber reinforced cement

Japanese: glass fiber reinforced cement(英語表記)glassfiberreinforcedcement
Glass fiber reinforced cement

...In this case, the SiO2 that constitutes the skeletal structure of the glass dissolves. In recent years, a composite material called GRC (short for glass fiber reinforced cement) has been developed that uses glass fibers to reinforce cement, but because cement is highly alkaline, ordinary SiO2 -based glass cannot be used at all, so a special alkali-resistant glass fiber containing 10 to 20% ZrO2 is used.
[Phase separation phenomenon]
In the case of liquids, some can mix in any ratio, such as water and ethyl alcohol, while others can separate, such as water and benzene.

*Some of the terminology that refers to "glass fiber reinforced cement" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…この場合には,ガラスの骨格構造を構成しているSiO2が溶け出してくる。近年セメントの補強用にガラス繊維を使用した複合材料であるGRC(glass fiber reinforced cementの略)があるが,セメントは強アルカリ性のため通常のSiO2系ガラスではまったく使用できず,ZrO2を10~20%含有する特殊な耐アルカリ性ガラス繊維が用いられている。
[分相現象]
 液体どうしの場合,水とエチルアルコールのようにどのような混合比でも混ざり合う場合と,水とベンゼンのように分離してしまう場合がある。…

※「glass fiber reinforced cement」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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