|本期目录/Table of Contents|

[1]余红发,孙伟,麻海燕,等.基于损伤演化方程的混凝土寿命预测方法[J].建筑科学与工程学报,2012,29(01):1-7.
　YU Hong-fa,SUN Wei,MA Hai-yan,et al.Predicting Method of Concrete Service Life Based on Damage Development Equation[J].Journal of Architecture and Civil Engineering,2012,29(01):1-7.
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基于损伤演化方程的混凝土寿命预测方法(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
29卷
期数:
2012年01期
页码:
1-7
栏目:
出版日期:
2012-03-30

文章信息/Info

Title:
Predicting Method of Concrete Service Life Based on Damage Development Equation
作者:
余红发1,孙伟2,麻海燕1,张云升2,缪昌文3,金祖权4,刘建忠3
1. 南京航空航天大学 土木工程系,江苏 南京 210016; 2. 东南大学 材料科学与工程学院,江苏 南京 210096; 3. 江苏省建筑科学研究院有限公司,江苏 南京 210008; 4. 青岛理工大学 土木工程学院,山东 青岛 266033
Author(s):
YU Hong-fa1, SUN Wei2, MA Hai-yan1, ZHANG Yun-sheng2, MIAO Chang-wen3, JIN Zu-quan4, LIU Jian-zhong3
1. Department of Civil Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, Jiangsu, China; 2. School of Materials Science and Engineering, Southeast University, Nanjing 210096, Jiangsu, China; 3. Jiangsu Research Institute o
关键词:
高强混凝土;  高性能混凝土;  冻融;  腐蚀;  使用寿命;  预测
Keywords:
high strength concrete;  high performance concrete;  freeing-thawing;  attack;  service life;  prediction
分类号:
TU528
DOI:
-
文献标志码:
A
摘要:
基于混凝土的冻融或腐蚀损伤演化方程,提出了一套预测混凝土结构使用寿命的基本方法与理论体系; 用单一冻融因素作用下的大量试验数据验证了混凝土的损伤演化方程; 通过专门设计的盐湖卤水腐蚀单一因素和(干湿循环+盐湖卤水腐蚀)双重因素、3.5%质量浓度的NaCl盐冻试验,研究了青海盐湖钾肥和北京城市立交桥主体结构混凝土的使用寿命预测问题。结果表明:青海盐湖钾肥工程不宜采用普通混凝土和高强混凝土; C60引气高性能混凝土在盐冻作用下满足北京城市立交桥50年的使用要求。
Abstract:
Based on the damage development equation of concrete subjected to freezing-thawing cycles or chemical attacks, a systematic theory and the basic operation for the prediction on service life of concrete structure were presented. Validity of the damage development equation of concrete was established by the vast data obtained through single factor. Service life prediction of some national key projections, such as the potassic manure plant in salt lake of Qinghai and Beijing Cloverleaf Bridge, were studied by specially designed durability experiments, which included single factor(salt lake bittern attack), double factor(wet-dry cycles compound with salt lake bittern attack), 3.5% mass concentration NaCl solution salt-frost experiments. Results show that either ordinary Portland cement concrete or high strength concrete is not applicable to the potassic manure plant in salt lake of Qinghai. Service life of Beijing Cloverleaf Bridge can also meet the requirements of 50 years since C60 air-entrained high performance concrete subjected to salt-frost action are adopted.

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备注/Memo

备注/Memo:
收稿日期:2011-11-10
基金项目:国家重点基础研究发展计划(“九七三”计划)项目(2009CB623203); 国家自然科学基金项目(51178221); 中央高校基本科研业务费专项资金项目(NS2010015)
作者简介:余红发(1964-),男,湖北武穴人,教授,博士研究生导师,工学博士,E-mail:yuhongfa@nuaa.edu.cn。
更新日期/Last Update: 2012-03-20