[1]施养杭,罗刚.有限差分法氯离子侵入混凝土计算模型[J].华侨大学学报(自然科学版),2004,25(1):58-61.[doi:10.3969/j.issn.1000-5013.2004.01.015]
　Shi Yanghang,Luo Gang.A Model Based on Finite Difference Method for Calculating Penetration of Chloride into Concrete[J].Journal of Huaqiao University(Natural Science),2004,25(1):58-61.[doi:10.3969/j.issn.1000-5013.2004.01.015]
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有限差分法氯离子侵入混凝土计算模型()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第25卷
期数:
2004年第1期
页码:
58-61
栏目:
出版日期:
2004-01-20

文章信息/Info

Title:
A Model Based on Finite Difference Method for Calculating Penetration of Chloride into Concrete
文章编号:
1000-5013(2004)01-0058-04
作者:
施养杭; 罗刚
华侨大学土木工程系; 工业部上海设计院 福建泉州362011; 上海200000
Author(s):
Shi Yanghang1;  Luo Gang2
1.Dept. of Civil Eng., Huaqiao Univ., 362011, Quanzhou, China; 2.Shanghai Designing Inst. of Nuclear Industry Dept., 200000, Shanghai, China
关键词:
氯离子;  侵蚀混凝土;  计算模型;  扩散系数;  有限差分法
Keywords:
chloride;  concrete erosion;  calculation model;  diffusion coefficient;  finite difference method
分类号:
TU375
DOI:
10.3969/j.issn.1000-5013.2004.01.015
文献标志码:
A
摘要:
根据氯离子侵入混凝土的主要途径和来源,阐明氯离子侵入混凝土的机理 .分析氯离子侵入混凝土的现有计算模型及其局限性 .综合考虑水泥的品种、温度、湿度和时间等因素对氯离子扩散系数的影响,建立基于有限差分法的氯离子侵入混凝土的计算模型 .经验证,该模型较好地反映实际情况 .
Abstract:
According to the source of chlorides and their primary ways of penetrating into concrete, the authors clarify the mechanism for chlorides to penetrate into concrete, and analyse the variety and the limitation of models now available for calculating the penetration of chlorides into concrete; and comprehensively consider the influences of variety of cement and temperatare and humidity and time on diffusion coefficient of chlorides. Basing on finite difference method, a model is constructed for calculating penetration of chloride into concrete. The model reflects actual situation fairly well.

参考文献/References:

[1] 王铁成, 郭小强, 阎西康. 海水侵蚀环境下混凝土结构耐久性的研究 [J]. 东南大学学报(自然科学版), 2002, (z1):251-253.
[2] 金伟良, 赵羽习. 混凝土结构耐久性 [M]. 北京:科学出版社, 2002.10-30.
[3] Nillson L O. A numerical model for combined diffusion and convection of chloride in non-saturated concrete [J]. ACI Materials Journal, 1996(2):256-263.
[4] Anna V S, Roberto V S. Analysis of chloride diffusion into partially saturated concrete [J]. ACI Materials Journal, 1993(5):441-451.
[5] Maekawa K, Ishiea T. Service-life evaluation of reinforced concrete under coupled forces and environmental actions, international conference on ion and mass transport in cement-based materials [J]. Journal of Toronto Univ, 1999(7):653-662.
[6] Amey S L, Johnson D A, Miltenberger M A. Predicting the service of concrete marine structures [J]. An Environmental Methodology ACI Structural Journal, 1998(2):205-214.
[7] Thomas M D A, Bamforth P B. Modeling chloride diffusion in concrete: Effect of fly ash and slag [J]. Cement and Concrete Research, 1999.487-495.
[8] Steinar H. Assessment and prediction of service life for marine structures:A tool for performance based requirement. 2nd. Berlin: World Publishing Corporation [M]. 1999.8-17.

相似文献/References:

[1]施养杭,罗刚.氯离子侵蚀下钢筋初锈时间的计算模型[J].华侨大学学报(自然科学版),2004,25(4):392.[doi:10.3969/j.issn.1000-5013.2004.04.013]
　Shi Yankang,Luo Gang.A Computation Model for Computing Initial Corrosion Time of Reinforcing Bar Suffering from Chlorion Erosion[J].Journal of Huaqiao University(Natural Science),2004,25(1):392.[doi:10.3969/j.issn.1000-5013.2004.04.013]
[2]施养杭,刘中辉,罗晓勇.混凝土矩形截面氯离子二维扩散的影响分析[J].华侨大学学报(自然科学版),2010,31(2):200.[doi:10.11830/ISSN.1000-5013.2010.02.0200]
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备注/Memo

备注/Memo:
国家自然科学基金资助项目(59979018); 建设部国家混凝土规范第6批科研基金资助项目(GBKY6001)
更新日期/Last Update: 2014-03-23