lightweight concrete

Japanese: lightweight concrete(英語表記)lightweightconcrete
lightweight concrete

...Lightweight (0.8-1.2 for structural use, 0.5 or less for insulation) and high insulation properties are used, and it is often used as lightweight precast members. lightweight concrete lightweight concrete refers to concrete with a unit weight of 2.0t/m3 or less made with artificial or natural lightweight aggregate (generally with a bone dry specific gravity of 1.6 for coarse aggregate and less than 2.0 for fine aggregate) for the purpose of reducing weight. heavy concrete concrete used to shield against radiation, with aggregates with high specific gravity such as kaolinite, magnetite, barite, iron phosphate, and iron.

*Some terminology explanations that mention "lightweight concrete" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…重量が軽い(構造用で比重0.8~1.2,断熱材用で比重0.5以下),断熱性が高いなどの性質を利用し,軽量プレキャスト部材として用いる場合が多い。軽量コンクリートlightweight concrete重量軽減の目的で,人工または天然の軽量骨材(一般には絶乾比重が粗骨材で1.6,細骨材で2.0未満のもの)を用いて作った単位重量2.0t/m3以下のコンクリートをいう。重量コンクリートheavy concrete放射線を遮へいするために用いられるコンクリートで,骨材としてカッ鉄鉱,磁鉄鉱,バライト,リン鉄,鉄などの比重の大きいものが用いられる。…

※「lightweight concrete」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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