基于Weibull分布的再生混凝土中钢筋锈蚀预测_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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基于Weibull分布的再生混凝土中钢筋锈蚀预测

Prediction of Steel Bar Corrosion in Recycled Concrete Based on Weibull Distribution

2022年第4期

再生混凝土；钢筋；自腐蚀电位；腐蚀电流密度；Weibull分布函数；寿命预测

Recycled concrete; Steel bar; Self-corrosion potential; Corrosion current density; Weibull distribution function; Life prediction

2022年第4期

10.19761/j.1000-4637.2022.04.084.06

2018年国家自然科学基金项目（51868044）。

王子健1，彭金贵2，郭飞2，苏睿3，乔宏霞3

1.甘肃建投矿业有限公司，甘肃兰州 730000；2.甘肃建投商品混凝土有限公司，甘肃兰州 730060；3.兰州理工大学西部土木工程防灾减灾教育部工程研究中心，甘肃兰州 730050

王子健1，彭金贵2，郭飞2，苏睿3，乔宏霞3

王子健,彭金贵,郭飞,等.基于Weibull分布的再生混凝土中钢筋锈蚀预测[J].混凝土与水泥制品,2022(4):84-88,93.

WANG Z J,PENG J G,GUO F,et al.Prediction of Steel Bar Corrosion in Recycled Concrete Based on Weibull Distribution[J].China Concrete and Cement Products,2022(4):84-88,93.

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摘要：为了解决西部盐渍土环境下再生混凝土中钢筋的寿命预测问题，采用电化学测试仪对浸泡在氯盐溶液中的再生骨料钢筋混凝土进行了电化学试验，得到了表征钢筋腐蚀的腐蚀电流密度及自腐蚀电位两个指标。利用最小二乘法对Weibull参数做了进一步估计，在Weibull分布函数的基础上对钢筋腐蚀后的寿命进行了建模。结果表明：再生混凝土中的钢筋加速腐蚀至30个月时，其腐蚀电流密度最高为0.058 4 μA/cm2，处于未腐蚀状态；将钢筋低腐蚀与中等腐蚀的界限值（0.5 μA/cm2）作为钢筋达到高腐蚀状态时的阈值，确定出再生混凝土中钢筋在第750个月时的可靠度函数开始趋近于零，处于中等腐蚀状态，从而直观反映了钢筋在实际环境中的有效使用寿命，可为再生混凝土中钢筋的维护与检测提供参考。 Abstract: In order to solve the problem of steel bar life prediction in recycled concrete in the western saline soil environment, the electrochemical test of recycled aggregate reinforced concrete soaked in chloride solution was carried out by using an electrochemical tester, and the corrosion current density and self-corrosion potential of steel bar were obtained. The least-squares method was used to further estimate the Weibull parameters, and the life of the steel bars after corrosion was modeled based on the Weibull distribution function. The results show that when the steel bar in recycled concrete is accelerated to 30 months, the maximum corrosion current density is 0.058 4 μA/cm2, and the steel bars are in non corrosive state. Taking the limit value of low corrosion and moderate corrosion of steel bars(0.5 μA/cm2) as the threshold value when steel bars reach high corrosion state, it is determined that the reliability function of steel bar in recycled concrete begins to approach zero at 750 months and is in the medium corrosive state, which directly reflects the effective service life of the steel bars in the actual environment. It can provide a reference for the maintenance and detection of steel bars in recycled concrete.

英文名 : Prediction of Steel Bar Corrosion in Recycled Concrete Based on Weibull Distribution

刊期 : 2022年第4期

关键词 : 再生混凝土；钢筋；自腐蚀电位；腐蚀电流密度；Weibull分布函数；寿命预测

Key words : Recycled concrete; Steel bar; Self-corrosion potential; Corrosion current density; Weibull distribution function; Life prediction

刊期 : 2022年第4期

DOI : 10.19761/j.1000-4637.2022.04.084.06

文章编号 :

基金项目 : 2018年国家自然科学基金项目（51868044）。

作者 : 王子健1，彭金贵2，郭飞2，苏睿3，乔宏霞3

单位 : 1.甘肃建投矿业有限公司，甘肃兰州 730000；2.甘肃建投商品混凝土有限公司，甘肃兰州 730060；3.兰州理工大学西部土木工程防灾减灾教育部工程研究中心，甘肃兰州 730050

王子健1，彭金贵2，郭飞2，苏睿3，乔宏霞3

王子健,彭金贵,郭飞,等.基于Weibull分布的再生混凝土中钢筋锈蚀预测[J].混凝土与水泥制品,2022(4):84-88,93.

WANG Z J,PENG J G,GUO F,et al.Prediction of Steel Bar Corrosion in Recycled Concrete Based on Weibull Distribution[J].China Concrete and Cement Products,2022(4):84-88,93.

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摘要

参数

结论

参考文献

引用本文

Abstract: In order to solve the problem of steel bar life prediction in recycled concrete in the western saline soil environment, the electrochemical test of recycled aggregate reinforced concrete soaked in chloride solution was carried out by using an electrochemical tester, and the corrosion current density and self-corrosion potential of steel bar were obtained. The least-squares method was used to further estimate the Weibull parameters, and the life of the steel bars after corrosion was modeled based on the Weibull distribution function. The results show that when the steel bar in recycled concrete is accelerated to 30 months, the maximum corrosion current density is 0.058 4 μA/cm², and the steel bars are in non corrosive state. Taking the limit value of low corrosion and moderate corrosion of steel bars(0.5 μA/cm²) as the threshold value when steel bars reach high corrosion state, it is determined that the reliability function of steel bar in recycled concrete begins to approach zero at 750 months and is in the medium corrosive state, which directly reflects the effective service life of the steel bars in the actual environment. It can provide a reference for the maintenance and detection of steel bars in recycled concrete.

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[1] 徐攸在.盐渍土地基[M].北京:中国建筑工业出版社,1993.
[2] 温利强.我国盐渍土的成因及分布特征[D].合肥:合肥工业大学,2010.
[3] 许开成,方苇,陈梦成,等.陶瓷再生粗骨料混凝土力学性能研究[J].实验力学,2014,29(4):474-480.
[4] 周静海,边晨,王凤池,等.再生骨料的分布对再生混凝土抗拉性能的影响[J].沈阳建筑大学学报(自然科学版),2015(2):267-275.
[5] 李悦,韩兆兴,王敏,等.掺废橡胶微粒的再生混凝土物理力学性能[J].北京工业大学学报,2009,35(6):34-38.
[6] 张卫东,王振波,何卫忠.橡胶再生混凝土物理力学性能研究[J].硅酸盐通报,2014,33(8):1915-1919.
[7] 张建仁,王华,彭建新,等.多因素腐蚀环境下混凝土结构的初锈时间模型及其可靠度分析[J].长沙理工大学学报(自然科学版),2012(1):34-40.
[8] 郑辉.自然环境下混凝土氯离子侵蚀的随机性及寿命预测[D].杭州:浙江工业大学,2009.
[9] 王银刚.基于钢筋初始锈蚀时间预测的混凝土桥梁寿命预测[D].武汉:华中科技大学,2008.
[10] 罗刚.氯离子侵蚀环境下钢筋混凝土构件的耐久寿命预测[D].泉州:华侨大学,2003.
[11] 关宇刚,孙伟,缪昌文.基于可靠度与损伤理论的混凝土寿命预测模型Ⅰ:模型阐述与建立[J].硅酸盐学报,2001,29(6):530-534.
[12] 宋玉普,冀晓东.混凝土冻融损伤可靠度分析及剩余寿命预测[J].水利学报,2006,37(3):259-263.
[13] 刘平,马履一,贾黎明,等.油松、侧柏人工林树冠率的Weibull分布及动态预测[J].福建林业科技,2008(3):26-33.
[14] ABINO A C,KIM S Y,LUMBRES R I C,et al.Performance of Weibull Function as a Diameter Distribution Model for Pinus Thunbergii Stands in the Eastern Coast of South Korea[J].Journal of Mountain Science,2016,13:822-830.
[15] ANTUNEZ P,WEHENKEL C,HERNANDEZ-DIAZ J C,et al.Use of the Weibull Function to Model Maximum Probability of Abundance of Tree Species in Northwest Mexico[J].Annals of Forest Science,2015,72(2):243-251.

[16] 黄昆林.Weibull-Markov模型在配电系统可靠性成本估计中的应用[D].成都:四川大学,2005.
[17] FETISOVA Y A,ERMOLENKO B V,ERMOLENKO G V,et al.Determining the Parameters of Weibull Function to Estimate the Wind Power Potential in Conditions of Limited Source Meteorological Data[J].Thermal Engineering,2017,64(4):251-257.
[18] BONADONNA C,COSTA A.Plume Height, Volume, and Classification of Explosive Volcanic Eruptions Based on the Weibull Function[J].Bulletin of Volcanology,2013,742:1-3.
[19] 中华人民共和国住房和城乡建设部,国家市场监督管理总局.建筑结构检测技术标准:GB/T 50344—2019[S].北京:中国建筑工业出版社,2019.
[20] 曹楚南.腐蚀电化学原理(第三版)[J].腐蚀科学与防护技术,2008,20(3):165-165.
[21] 乔宏霞,巩位,陈广峰,等.基于极化曲线的镁水泥混凝土中钢筋腐蚀试验[J].华中科技大学学报(自然科学版),2016,44(1):6-10.
[22] 雷刚.Weibull分布寿命数据的参数估计[D].武汉:华中科技大学,2006.
[23] 郭红,李波,张博.基于完全样本的两参数Weibull分布的参数估计[J].华中师范大学学报(自然科学版),2007(3):29-32.

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