| 硫酸盐侵蚀环境下混凝土强度的经时变化模型 |
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| 引用本文： | 袁晓露,李北星,崔巩,赵尚传.硫酸盐侵蚀环境下混凝土强度的经时变化模型[J].长江科学院院报,2010,27(3):59-61. |
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| 作者姓名： | 袁晓露 李北星 崔巩 赵尚传 |
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| 作者单位： | 1. 武汉理工大学 硅酸盐教育部重点实验室，武汉 430070 ； 2. 交通部 公路科学研究院，北京 100088 |
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| 基金项目： | 西部交通建设科技项目(200631822302-08) |
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| 摘 要： | 通过干湿循环－硫酸盐侵蚀加速试验方法，研究了高性能混凝土抗压强度的经时演变规律，采用统计回归方法分析试验数据，得到了混凝土强度平均值和标准差的经时变化函数，建立了硫酸盐侵蚀环境下高性能混凝土抗压强度的经时变化函数概率模型。结果分析表明：硫酸盐侵蚀环境下，混凝土的抗压强度平均值呈现出显著的二次多项式经时变化规律；抗压强度标准差的经时变化过程表现为典型的一阶指数增长函数。
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| 关 键 词： | 硫酸盐 高性能混凝土 抗压强度 经时变化 模型 |
Strength Duration Model of Concrete Exposed to Sulfate Environment |
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| YUAN Xiao-lu,LI Bei-xing,CUI Gong,ZHAO Shang-chuan.Strength Duration Model of Concrete Exposed to Sulfate Environment[J].Journal of Yangtze River Scientific Research Institute,2010,27(3):59-61. |
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| Authors: | YUAN Xiao-lu LI Bei-xing CUI Gong ZHAO Shang-chuan |
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| Affiliation: | 1. Key Laboratory of Silicate Materials Science and Engineering of Ministry of Education, Wuhan University of Technology, Wuhan 430070 ， China ； 2. Research Institute of Highway of Ministry of Communications, Beijing 100088,China |
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| Abstract: | Accelerating experimental method of wet-dry sulfate erosion was applied to investigate the law of concrete strength changing with time.By means of statistics and regression,functions of mean value and standard deviation of concrete strength were obtained to establish the probability model of compressive strength of high-performance concrete exposed to the sulfate environment.The results show that: under the sulfate exposure,the mean value of concrete compressive strength presents the relationship of quadrat... |
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| Keywords: | sulfate high-performance concrete compressive strength changing with time model |
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