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硅质碳酸盐Spratt岩在LiOH溶液中的膨胀行为 被引量：1

Expansion Behavior of Siliceous Carbonate(Spratt Limestone) in LiOH Solution
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摘要 通过研究典型的硅质碳酸盐Spratt石灰岩在LiOH溶液中的膨胀行为和产物形貌、组成,认为Spratt石灰岩既具有碱-硅酸反应活性,又具有碱-碳酸盐反应活性;通过研究碱-碳酸盐反应过程中离子的迁移,认为白云石晶体在碱的侵蚀下会发生解离,而解离出来的Ca2+和CO32-向外迁移,离开了它们原来的位置. The expansion behavior of typical siliceous carbonate (Spratt limestone) autoclaved in LiOH solution were studied in this paper, the morphologies and chemical composition of the products produced by reaction of siliceous carbonate with LiOH were studied through SEM and EDS. The results show that Spratt limestone exhibits both alkali - silica and alkali - carbonate reactivity. Ion's migration in alkali - carbonate reaction process was revealed, dolomite crystal disintegrates because of alkali corrosion, Ca2+ and CO32- produced by dolomite crystal disintegration migrate out and leave original positions.
作者 梅来宝 卢都友 邓敏 唐明述
机构地区 南京工业大学理学院 南京工业大学材料科学与工程学院
出处 《建筑材料学报》 EI CAS CSCD 2004年第4期379-383,共5页 Journal of Building Materials
关键词 碳酸盐 反应过程 反应活性 白云石 溶液 膨胀 OH 解离 CO3^2- 晶体 siliceous carbonate alkali-silica reaction alkali-carbonate reaction lithium hydroxide
分类号 TU528 [建筑科学—建筑技术科学] TQ085.4 [化学工程]
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参考文献2

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二级参考文献8

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共引文献2

同被引文献9

  • 1BERUBE M-A,DURAND B,VEZINA D,et al.Alkali-aggregate reactivity inQubec(Canada)[J].Canadian Journal of Civil Engineering,2000,27(2):226-245.
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建筑材料学报
2004年 第4期

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