Protective ability index measurement through Raman quantification imaging to diagnose the conservation state of weathering steel structures

2014 ◽  
Vol 45 (11-12) ◽  
pp. 1076-1084 ◽  
Author(s):  
Julene Aramendia ◽  
Leticia Gomez-Nubla ◽  
Ludovic Bellot-Gurlet ◽  
Kepa Castro ◽  
Céline Paris ◽  
...  
Keyword(s):  
Steel Structures ◽  
Weathering Steel ◽  
Protective Ability ◽  
Index Measurement ◽  
Ability Index

Corrosive Environment Factors and their Influence on the Development of Weathering Steel Corrosion Products

2020 ◽  
Vol 832 ◽  
pp. 137-146
Author(s):  
Monika Kubzová ◽  
Vit Křivý ◽  
Viktor Urban ◽  
Katerina Kreislova
Keyword(s):  
Atmospheric Corrosion ◽  
Steel Surface ◽  
Protective Layer ◽  
Steel Structures ◽  
Corrosion Products ◽  
Outdoor Environment ◽  
Weathering Steel ◽  
Low Alloy Steels ◽  
Time Of Wetness ◽  
The Impact

This article deals with the topic of atmospheric corrosion. Atmospheric corrosion causes damage to nearly 80% of all existing steel structures. The main parameters of atmospheric corrosion are the time of wetness (TOW), air temperature and aggressive corrosive agents such as chlorides, sulfur dioxide and others. Currently, low alloy steels with improved atmospheric corrosion resistance called weathering steels are used for the steel structures located in outdoor environment. A protective layer of corrosion products is created on the steel surface and this layer can reduce continuation of corrosion of steel. The time of wetness together with the effect of aggressive corrosive agents are various for surfaces oriented vertically or horizontally. Experimental tests of atmospheric weathering steel were carried out to monitor the impact of location and position of surface on the different constructions. These tests allow monitoring the development of corrosion products in real exposures. The article presents a part of the research, which includes monitoring the development of the thickness of corrosion products with regard to the position on the structure. Research is developed to refine of prediction models with the aim of improving determination of corrosion losses during the service life of the structure. Second part of these experiments is dedicated to measuring the deposition rate of chlorides. Chlorides have a corrosive impact on the steel surface. Under normal conditions the chlorides does not create suitable environment for the development of a protective layer of corrosion products.

Composition and protective ability of rust layer formed on weathering steel exposed to various environments

2006 ◽  
Vol 48 (9) ◽  
pp. 2799-2812 ◽  
Author(s):  
T. Kamimura ◽  
S. Hara ◽  
H. Miyuki ◽  
M. Yamashita ◽  
H. Uchida
Keyword(s):  
Weathering Steel ◽  
Rust Layer ◽  
Protective Ability

Experimental Investigation of Corrosion Processes on Weathering Steel Structures

2013 ◽  
Vol 577-578 ◽  
pp. 397-400 ◽  
Author(s):  
Vit Křivý ◽  
Viktor Urban ◽  
Lukáš Fabián
Keyword(s):  
Experimental Investigation ◽  
Czech Republic ◽  
Prediction Model ◽  
Experimental Testing ◽  
Steel Structures ◽  
Steel Bridges ◽  
Weathering Steel ◽  
Salt Solutions ◽  
The Czech Republic ◽  
Corrosion Rates

This paper introduces the experimental corrosion tests that are carried on the existing weathering steel structures in the Czech Republic. The influence of the position and location of the surface in the structure on the resulting corrosion rates can be evaluated using this experimental testing. Typical surfaces of steel bridges are tested, e.g. webs of main girders, upper and lower surfaces of flanges, surfaces affected by leaking salt solutions. Results of the corrosions tests are used for the specification of corrosion prediction model.

(Invited) Measurement of Salt Abundance on Weathering Steel Structures By Portable XRF

2020 ◽  
Vol MA2020-02 (13) ◽  
pp. 1301-1301
Author(s):  
Masamichi Takebe ◽  
Makoto Ohya ◽  
Ayaka Matsumoto
Keyword(s):  
Steel Structures ◽  
Weathering Steel ◽  
Portable Xrf
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