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受除冰盐沉积影响的耐候钢桥腐蚀过程

Corrosion Processes on Weathering Steel Bridges Influenced by Deposition of De-Icing Salts.

作者信息

Křivý Vít, Kubzová Monika, Konečný Petr, Kreislová Kateřina

机构信息

Department of Building Structures, Faculty of Civil Engineering, VSB-Technical University of Ostrava, L. Podeste 1875, 708 00 Ostrava, Czech Republic.

Department of Structural Mechanics, Faculty of Civil Engineering, VSB-Technical University of Ostrava, L. Podeste 1875, 708 00 Ostrava, Czech Republic.

出版信息

Materials (Basel). 2019 Apr 2;12(7):1089. doi: 10.3390/ma12071089.

DOI:10.3390/ma12071089
PMID:30986966
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6479928/
Abstract

The safety and durability of bridges designed from weathering steels are conditioned by the development of a sufficiently protective layer of corrosion products. Air pollution, microclimate around the bridge, time of wetness, structural solution of the bridge, and the position and orientation of the surface within the bridge structure all influence the development of protective layers on the surface of the weathering steel. In this article, attention is focused mainly on the microclimatic effects resulting from the road traffic under the bridge. The influence of chloride deposition on the development of corrosion products is evaluated using experimental in situ testing. Two neighboring bridges made of weathering steel and crossing different types of obstacles were selected for this experiment. Relations and dependences between the measured parameters (deposition rate of chlorides, corrosion rates, thickness of corrosion products and the amount of chlorides in corrosion products) are evaluated and discussed.

摘要

耐候钢设计桥梁的安全性和耐久性取决于能否形成足够的腐蚀产物保护层。空气污染、桥梁周围的微气候、湿润时间、桥梁的结构设计以及桥梁结构中表面的位置和方向都会影响耐候钢表面保护层的形成。本文主要关注桥梁下方道路交通产生的微气候影响。通过现场实验测试评估氯化物沉积对腐蚀产物形成的影响。为此实验选择了两座相邻的耐候钢桥梁，它们跨越不同类型的障碍物。对测量参数（氯化物沉积速率、腐蚀速率、腐蚀产物厚度以及腐蚀产物中的氯化物含量）之间的关系和相关性进行了评估和讨论。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/aa78a973253a/materials-12-01089-g013.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/b5e418f8b4bc/materials-12-01089-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/ec54eb4740ea/materials-12-01089-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/040a50db1688/materials-12-01089-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/972487302d62/materials-12-01089-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/334f342ddd7c/materials-12-01089-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/5f7fceec1e46/materials-12-01089-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/5291929ee43f/materials-12-01089-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/aa78a973253a/materials-12-01089-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/7ccac716b6f4/materials-12-01089-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/226460346d51/materials-12-01089-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/f394c447d825/materials-12-01089-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/8fe92c7f04e1/materials-12-01089-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/cb962cc2bc57/materials-12-01089-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/b5e418f8b4bc/materials-12-01089-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/ec54eb4740ea/materials-12-01089-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/040a50db1688/materials-12-01089-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/972487302d62/materials-12-01089-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/334f342ddd7c/materials-12-01089-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/5f7fceec1e46/materials-12-01089-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/5291929ee43f/materials-12-01089-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f172/6479928/aa78a973253a/materials-12-01089-g013.jpg

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On the Influence of Corrosion on the Load-Carrying Capacity of Old Riveted Bridges.论腐蚀对旧铆接桥梁承载能力的影响
Materials (Basel). 2020 Feb 5;13(3):717. doi: 10.3390/ma13030717.