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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Non-explosive demolition agents ： ウィキペディア英語版 Non-explosive demolition agents Non-explosive demolition agents are commercial products that are an alternative to explosives and gas pressure blasting products in demolition, mining, and quarrying.〔(2003 American Society of Civil Engineers, ''Controlled Concrete Demolition Using Expansive Cracking Agents'' http://www.scitation.aip.org )〕 To use non-explosive demolition agents in demolition or quarrying, holes are drilled in the base rock as they would be for use with conventional explosives. A slurry mixture of the non-explosive demolition agent and water is poured into the drill holes. Over the next few hours the slurry expands, cracking the rock in a pattern somewhat like the cracking that would occur from conventional explosives. Non-explosive demolition agents offer many advantages including that they are silent and do not produce vibration the way a conventional explosive would. In some applications conventional explosives are more economical than non-explosive demolition agents. In many countries these are available without restriction, unlike explosives which are highly regulated. These agents are much safer than explosives, but they have to be used as directed to avoid steam explosions during the first few hours after being placed. ==See also== *Plug and feather *Explosive material *Mining *Quarry 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「Non-explosive demolition agents」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.