中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2007, Vol. 26 ›› Issue (2): 131-135.

• • 上一篇    下一篇

纳米CaCO3对砼耐干湿循环腐蚀性能的影响

李固华,高波   

  1. 西南交通大学土木工程学院,四川 成都 610031
  • 收稿日期:2006-02-20 修回日期:2006-03-10 出版日期:2007-04-15 发布日期:2015-01-22
  • 作者简介:李固华(1963—),男,山东曹县人,副教授,博士,从事高性能及高耐久性砼研究.E-mail:lgh-100@rip.163.com
  • 基金资助:
    西南交通大学科学研究基金(2005A01)资助

Efect of NM Level CaCO3 on Performance of the Concrete in Drying-W etting Cycle in Corrosive EnVironments

LI Gu-hua;GAO Bo   

  1. School of Civil Engineering,Southwest Jiaotong University,Sichuan Chengdu 610031,China
  • Received:2006-02-20 Revised:2006-03-10 Online:2007-04-15 Published:2015-01-22

摘要: 以掺15%粉煤灰的砼为基准,研究了纳米CaCO,(NC)砼耐于湿腐蚀循环的性能.试验结果表明:与基准砼相 比,在70次和110次循环后,Nc掺量为1%时砼的相对耐干湿循环系数分别提高l1%和13%,但过高的Nc掺量可 能对砼的耐久性有副作用;同时对Nc砼性能的机理进行了分析.

关键词: 纳米CaCO, 粉煤灰, 砼, 干湿腐蚀循环

Abstract: Regarding fly ash concrete as normal basis,the performances of concretes with am level CaC03(NC)tire investigated in dring-weting cycle in corrosive environments.The result shows that comparing with normal concrete,after 70 and 110 times drying-wetting cycle.modulus ratios of drying-wetting cycle in corrosive environments of the concrete with 1% NC have increased by 11% and 13% respectively.Too much NC in concrete would decrease the durability of the concrete.Fi— nally,the mechanism for the concrete with NC is discussed.

Key words: am level CaCO3, fly ash, concrete, drying-weting cycle in corrosive environments

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