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Fundamentals of alkali-silica gel formation and swelling: Condensation under influence of dissolved salts
Cement and Concrete Research ( IF 11.4 ) Pub Date : 2018-03-01 , DOI: 10.1016/j.cemconres.2017.11.006
J.H.M. Visser

Abstract The current theory of ASR gel formation in concrete between silicic acid anions with cations and is unable to explain the differences in concentration required for gel formation between e.g. potassium and sodium or the effect of calcium on the gel formation. In this paper, a new gelation mechanism is explained by means of a condensation between silicic acid anions. The role of salts on the ASR gel formation and gel time is described by their charge screening capacity of the silicic acid, resulting in the decreasing concentration range for gelation: Ca

中文翻译:

碱硅胶形成和溶胀的基本原理:溶解盐影响下的冷凝

摘要 当前关于硅酸阴离子与阳离子在混凝土中形成 ASR 凝胶的理论无法解释例如钾和钠之间凝胶形成所需的浓度差异或钙对凝胶形成的影响。在本文中,通过硅酸阴离子之间的缩合解释了一种新的凝胶化机制。盐对 ASR 凝胶形成和凝胶时间的作用是通过它们对硅酸的电荷筛选能力来描述的,导致凝胶化的浓度范围减小:Ca
更新日期:2018-03-01
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