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纳米SiO2改性的砂浆保护层对混凝土氯离子渗透性的影响 被引量:5

Chloride Permeability of Concrete Applied with Nano-SiO_2 Modified Mortar Coating
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摘要 采用5%纳米SiO_2改性砂浆作为保护层来提高混凝土的抗氯离子渗透性,与普通混凝土相比,经保护层处理的混凝土抗氯离子渗透性能得到了明显的改善。通过用差示扫描量热法-热重分析(DSC-TG)、X射线衍射(XRD)和扫描电子显微镜(SEM)等测试手段,探讨了纳米SiO_2改性的砂浆保护层对混凝土抗氯离子渗透性的影响机理。结果表明纳米SiO_2的异相晶核效应、高火山灰反应活性和微集料填充效应,共同作用提高了砂浆保护层的致密度,从而提高了混凝土的抗氯离子的渗透性能。 Compared with the concrete without modification coating,the chloride penetration resistance of modified concrete was significantly improved,especially in concrete applied with 5%nano-SiO2(NS)mortar coating.Then differential scanning calorimetry-thermogravimetric(DSC-TG),X-ray diffraction(XRD)and scanning electron microscope(SEM)were used to explore the influence mechanism of nano-SiO2 modified cementitious coatings on the resistance against chlorine penetration of concrete.The analysis reveals that heterogeneous nucleus effect,high pozzolanic activity and micro-aggregate filling effect of NS have come together to improve density of mortar coating and then improve the ability of concrete to counter chloride diffusion.
作者 梅军帅 吴静 王罗新 李海南 梅军鹏 MEI Jun-shuai;WU Jing;WANG Luo-xin;LI Hai-nan;MEI Jun-peng(College of Materials Science and Engineering,Wuhan Textile University,Wuhan 430200,China;State Key Laboratory for Silicate Building Materials,Wuhan University of Technology,Wuhan 430070,China)
出处 《硅酸盐通报》 CAS CSCD 北大核心 2018年第12期3738-3743,共6页 Bulletin of the Chinese Ceramic Society
基金 国家自然科学基金(51302195) 湖北省重大专项研发计划(2018AAA001) 固废资源化利用与节能建材国家重点实验室开放基金(SWR-2016-002)。
关键词 抗氯离子渗透 纳米SIO2 砂浆保护层 孔结构 chloride penetration resistance nano-SiO2 mortar coating pore structure
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  • 1李明珠.宝山区流行性腮腺炎流行规律探讨[J].上海预防医学,1998,10(3):116-118. 被引量:3
  • 2陈更新,李纹纹,王培铭.氯离子在水泥砂浆中的渗透深度和浓度分布[J].同济大学学报(自然科学版),1996,24(3):303-308. 被引量:5
  • 3张公惠,朱启镕,曾玫,段恕诚.小儿流行性腮腺炎回顾性临床流行病学分析[J].上海医学,1996,19(12):704-705. 被引量:17
  • 4史才军,元强,邓德华,郑克仁.混凝土中氯离子迁移特征的表征[J].硅酸盐学报,2007,35(4):522-530. 被引量:26
  • 5BAROGHEL-BOUNY V.Evaluation and prediction of reinforced Concrcrete durability by means of durability indicators.Part Ⅰ:New performance-based approach[A]// KOVLER K ed.International RILEM-JCI seminar on Concrcrete Durability and Service Life Plan ning "Concrcrete Life'06"[C],Ein-Bokek,Dead Sea,Israel,2006:259-269. 被引量:1
  • 6BAROGHEL-BOUNY V,NGUYEN T-Q,THIERY M,et al.Evaluation and prediction of reinforced Concrcrete durability by means of durability indicators.Part Ⅱ:Multi-level predictive modelling[A]//KOVLER K ed.International RILEM-JCI seminar on Concrgrete Durability and Service Life Planning "ConcrcreteLife'06"[C],Ein-Bokek,Dead Sea,Israel,Ein-Bokek,Dead Sea,Israel 2006:270-280. 被引量:1
  • 7COLLEPARDI M,MARCIALIS A,TURRIZIANI R.Kinetics of penetration of chloride ions into Concrcrete[J].Il Cemento (in Italian).1970,67:157-164. 被引量:1
  • 8COLLEPARDI M,MARCIALIS A,TURRIZIANI R.Penetration of chloride ions in cement pastes and in concrcretes[J].J Am Ceram Soc,1972,55:534-535. 被引量:1
  • 9Italian Standard 79-28,Determination of the Chloride[S].Rome,1978. 被引量:1
  • 10MAULTZSCH M.Concrcrete related effects on chloride diffusion[J].BAMAmts und Mitteilangsblatt (in German),1983,13 (3):387-389 被引量:1

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