翻訳と辞書 Words near each other ・ Contuboel ・ Contullich Castle ・ Controlled Impact Rescue Tool ・ Controlled internal drug release ・ Controlled invariant subspace ・ Controlled lab reactor ・ Controlled language in machine translation ・ Controlled low strength material ・ Controlled mines ・ Controlled natural language ・ Controlled NOT gate ・ Controlled Oral Word Association Test ・ Controlled ovarian hyperstimulation ・ Controlled parking zone ・ Controlled payment number ・ Controlled permeability formwork ・ Controlled phased launch ・ Controlled release ・ Controlled source electro-magnetic ・ Controlled substance ・ Controlled Substances Act ・ Controlled Substances Penalties Amendments Act of 1984 ・ Controlled tenancy ・ Controlled traffic farming ・ Controlled Unclassified Information ・ Controlled vocabulary ・ Controlled waste ・ Controlled-access highway ・ Controlled-environment agriculture ・ Controlled-release fertiliser Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Controlled permeability formwork ： ウィキペディア英語版 Controlled permeability formwork Controlled permeability formwork (CPF) is a system proven to significantly enhance the durability of surface concrete during the casting process. ==The need for CPF== All concretes cast against wood or steel in the concrete cover zone, have a reduced cement content and increased water/cement ratio (i.e. less dense and more porous) compared to concrete located beyond the reinforcement. Within the core of any structural element the matrix is generally a denser and of better quality compared to the surface as a direct result of the concrete compaction. This compaction process drives excess mix air and water within the cover zone towards the formed surfaces. As conventional wood or steel formwork is impermeable, the migration within the mix ceases as the concrete/formwork interface is reached. Visually, this may be observed on all concrete surfaces through the presence of blowholes following formwork removal. This is a problem because the first line of defence of all structural elements against carbonatation, chlorides, frost and abrasion, is the cover zone. It is therefore imperative this region is durable. 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「Controlled permeability formwork」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.