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Concrete corrosion induced by sulfuric acid

Concrete corrosion induced by sulfuric acid

Romanova, Anna (2016) Concrete corrosion induced by sulfuric acid. In: Sheffield research seminar, Wednesday, 2 March 2016, University of Sheffield.

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Abstract

Concrete sewer pipes are known to suffer from a process of hydrogen sulfide gas induced sulfuric acid corrosion. This leads to premature pipe degradation, performance failure and collapses which in turn may lead to property and health damage. To change the existing post-reactive attitude of managing companies, easy to use and robust models are required to be developed which currently lack reliable data to be correctly calibrated. This paper focuses on laboratory experiments of establishing concrete pipe corrosion rate by submerging samples into sulphuric acid solution for a duration of up to 120 days under 10-30ºC temperature regimes. The results showed that some samples at very early stage of the corrosion process gained overall mass and density with reverse process over time. Overall, in lab conditions the corrosion rates of 5-25mm/year were observed.

Item Type: Conference or Conference Paper (Keynote)
Uncontrolled Keywords: Sewer pipes; Pipe corrosion; Sulfuric acid
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Department of Applied Engineering & Management
Last Modified: 20 Dec 2016 10:45
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/16120

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