添加剂对钢筋混凝土耐久性的影响

Stroitel stvo nauka i obrazovanie [Construction Science and Education] Pub Date : 2014-12-01 DOI:10.1515/cons-2014-0009

Darja Neverkoviča, A. Korjakins

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引用次数: 6

摘要

摘要本文以Xypex Admix C-1000、Penetron Admix和Elkem Microsilica三种市售混凝土外加剂为研究对象，对钢筋混凝土结构中的碳化和氯离子腐蚀机理进行了研究。由于空气中存在所需量的二氧化碳扩散，碳酸化就发生了。在海洋大气中使用除冰盐或结构开采时，氯化物会渗入混凝土。根据实施的研究，埃肯微二氧化硅是在恶劣环境条件下使用的推荐添加剂。使用Xypex Admix C-1000和Penetron Admix对侵略性环境影响的抵抗力仅为平均水平。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Influence of Additives on Reinforced Concrete Durability

Abstract The article presents the results of the research on carbonation and chloride induced corrosion mechanisms in reinforced concrete structures, based on three commercially available concrete admixtures: Xypex Admix C-1000, Penetron Admix and Elkem Microsilica. Carbonation takes place due to carbon dioxide diffusion, which in the required amount is present in the air. Chlorides penetrate concrete in case of the use of deicing salt or structure exploitation in marine atmosphere. Based on the implemented research, Elkem Microsilica is the recommended additive for the use in aggressive environmental conditions. Use of Xypex Admix C-1000 and Penetron Admix have only average resistance to the aggressive environmental impact.

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Stroitel stvo nauka i obrazovanie [Construction Science and Education]

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