SERVICE LIFE OF CONCRETE STRUCTURES INCLUDING THE PROPAGATION TIME

机译：混凝土结构的使用寿命（包括传播时间）

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Corrosion of reinforcement in marine concrete is an oxygen dependent process. This means that the corrosion rate in a marine environment is controlled by the amount of oxygen that can dissolve in the pore solution of the concrete. As a result, the corrosion rate is generally limited by the diffusion rate of oxygen in the concrete pore solution. The density and moisture content of the concrete therefore have a major effect on how fast the corrosion process proceeds. This investigation has shown that the lower the water cement ratio of the structure, the lower the corrosion rate. Admixtures of micro silica also give a reduction in corrosion rate.

机译：船用混凝土中钢筋的腐蚀是取决于氧气的过程。这意味着海洋环境中的腐蚀速率由可溶解在混凝土孔隙溶液中的氧气量控制。结果，腐蚀速率通常受到氧气在混凝土孔隙溶液中的扩散速率的限制。因此，混凝土的密度和水分含量对腐蚀过程的进行速度有重大影响。研究表明，结构的水灰比越低，腐蚀速率越低。二氧化硅微粉的混合物也会降低腐蚀速率。

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来源
《International Workshop On Measurement and Interpretation of the On-site Corrosion Rate MESINA Feb 22-23, 1999, Madrid, Spain》|1999年|p.51-66|共16页
会议地点 Madrid(ES);Madrid(ES)
作者
K.Pettersson;
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作者单位

Swedish Cement and Concrete Research Institute SWEDEN;

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原文格式 PDF
正文语种 eng
中图分类建筑科学;
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SERVICE LIFE OF CONCRETE STRUCTURES INCLUDING THE PROPAGATION TIME

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