| 基于应力状态下钢筋混凝土开始锈蚀的时间预测模型 |
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| 引用本文： | 张立伟,汤永净.基于应力状态下钢筋混凝土开始锈蚀的时间预测模型[J].混凝土,2008(3):36-38. |
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| 作者姓名： | 张立伟 汤永净 |
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| 作者单位： | 同济大学,岩土及地下工程教育部重点实验室,上海,200092 |
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| 摘 要： | 选取混凝土强度等级、环境温度、环境相对湿度、二氧化碳浓度、结构受力状态5个参数为主要影响混凝土碳化深度系数的因素.通过研究各因素与混凝土碳化速度的关系,建立了碳化深度影响系数公式,考虑混凝土碳化残量与钢筋锈蚀的关系,最后,建立了混凝土中钢筋开始锈蚀的时间预测模型.
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| 关 键 词： | 碳化 应力状态 碳化残量 钢筋锈蚀 |
| 文章编号： | 1002-3550(2008)03-0036-03 |
| 修稿时间： | 2007年7月26日 |
Model for forecasting the initial corrosion time of reinforced concrete based on stress conditions |
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| ZHANG Li-wei,TANG Yong-jing.Model for forecasting the initial corrosion time of reinforced concrete based on stress conditions[J].Concrete,2008(3):36-38. |
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| Authors: | ZHANG Li-wei TANG Yong-jing |
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| Affiliation: | ZHANG Li-wei,TANG Yong-jing(Key Laboratory of Geotechnical , Underground Engineering of Ministry of Education,Tongji University,Shanghai 200092,China) |
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| Abstract: | The five parameters of the strength of the concrete,environmental temperature,humidity,CO2 thickness and structure mechanical condition are selected as the main factors affecting the depth of carbonation.By studying the relationship between the various factors and the rate of carbonation of concrete,establish a depth of carbonation influence coefficient formula,and consider the relationship between carbonation remains and steel corrosion,finally,establish a prediction mode for calculating the initial corros... |
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| Keywords: | carbonation stress condition carbonation remains corrosion |
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