期刊
MATERIALS
卷 14, 期 24, 页码 -出版社
MDPI
DOI: 10.3390/ma14247662
关键词
reinforced concrete structures; service life; data cleaning; electrical resistivity
类别
资金
- CIC-UMSNH
- Consejo Nacional de Ciencia y Tecnologia (CONACYT) [315660, 315680]
- SEP-PRODEP
- Tecnologico de Monterrey, School of Engineering and Science, Queretaro Campus
This study compared six index properties collected during durability inspections of five Mexican seaports, finding that electrical resistivity is a key durability index for concrete structures in marine environments. Additionally, the study verified the feasibility of using correlations of variables to clean unnecessary data for calculating corrosion initiation time.
This paper presents a comparison of six index properties collected during durability inspections of five Mexican seaports. Typical durability indicators such as compressive strength, saturated electrical resistivity, ultrasonic pulse velocity, percent total void content, capillary porosity, and chloride concentration profiles were analyzed to obtain empirical correlations with the non-steady-state chloride diffusion coefficient. These indices were compared to determine correlation coefficients that are the most important for obtaining better corrosion initiation forecasting. Two models of corrosion initiation time (t(i)) were used: Fick's second law of diffusion and the reported UNE-83994-2 (Spanish Association for Standardization, UNE) in which electrical resistivity was used to calculate concrete service life. The data from both models were cleaned using correlated variables, and the initial variables were compared with t(i). The main result achieved was the verification of the feasibility of using correlations of variables to clean unnecessary data in order to calculate t(i). Additionally, electrical resistivity was identified as one of the main durability indexes for in-service concrete structures exposed to marine environments. This is important because electrical resistivity is a non-destructive and reliable test that can be measured both in the laboratory and in the field very easily.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据