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Salt-concrete : ウィキペディア英語版 | Salt-concrete Salt-concrete (or ''salzbeton'') is a construction material that is used to reduce the water inflow in mining shafts in salt mines. It is composed of 16% cement, 39% halite, 16% limestone powder, 14% water and 15% sand.〔(pumpversatz )〕 ==History== Salt-concrete was used for the first time in 1984 in the Kali mine in Rocanville in Canada.〔(Thyssen )〕 A salt-concrete seal was also installed in the Asse II mine in Lower Saxony in 1995.〔(Investigation of a Salt-concrete seal )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Salt-concrete」の詳細全文を読む
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