…used for decoration, painting, artificial stone, art, etc. Expansive cement is a mixed cement for chemical prestressing that contains an expansive agent to prevent cracks caused by drying shrinkage of concrete or to generate tension with reinforcing bars. Expansive agents include calcium sulfoaluminate, lime, calcium aluminate, and gypsum, of which the first two are used in Japan. … *Some of the terminology that refers to "expansive cement" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…装飾,塗装,人造石,芸術などに用いられる。膨張セメントexpansive cement膨張材を加えてコンクリートの乾燥収縮によるひび割れ防止,あるいは鉄筋との緊張力を発生させるケミカルプレストレス用混合セメント。膨張材としてはカルシウムスルホアルミネート系,石灰系,アルミン酸カルシウム系,セッコウ系などがあるが,日本では前2者が利用されている。… ※「expansive 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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