Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

Methods of Monitoring Reinforced Concrete Corrosion in Formulations for Nuclear Facilities

Picture for Methods of Monitoring Reinforced Concrete Corrosion in Formulations for Nuclear Facilities
Available for download

Two concrete formulations, one of ordinary portland cement and one of pozzolanic portland cement, are compared by rebar corrosion criteria. Both formulations are candidates for nuclear applications whose durability requirement is higher than 300 years.

Product Number: 51317--9154-SG
ISBN: 9154 2017 CP
Author: Damián Vazquez
Publication Date: 2017
Industry: Energy Generation
$0.00
$20.00
$20.00

The reinforced concrete is one of the main materials used for the construction of facilities designed for the development of peaceful activities of nuclear energy. This material in addition to being structural is a barrier for insulation and confinement of the radioactive materials. One of its degradation mechanisms is reinforcement corrosion a frequent cause of failure in service. Consequently it is essential to study this mechanism of degradation in formulations developed for this purpose as well as the development and implementation of monitoring techniques for real structures.The objective of this work is to compare from the corrosion point of view two concrete formulations: one made with ordinary portland cement and the other with pozzolanic portland cement. Both formulations are candidates for nuclear applications whose durability requirement is higher than 300 years. The results of approximately four years and six months of monitoring are presented. Those parameters are: corrosion potential and corrosion rate of the reinforcements electrical resistivity oxygen flow and internal temperature of concrete. These parameters were measured in reinforced concrete specimens by embedded sensors previously developed in our laboratory. Besides the carbonation rate and chloride diffusion coefficient were also measured using unreinforced specimens. The presence of reinforcements provides the possibility of monitoring directly on them the corrosion potential the corrosion rate and electrical resistivity of concrete using a commercial instrument widely used in the work reported in the literature. This allows comparison of different parameters associated with the corrosion process monitored by embedded sensors and the commercial instrument.

Key words: Reinforced concrete corrosion, durability of reinforced concrete, nuclear materials

The reinforced concrete is one of the main materials used for the construction of facilities designed for the development of peaceful activities of nuclear energy. This material in addition to being structural is a barrier for insulation and confinement of the radioactive materials. One of its degradation mechanisms is reinforcement corrosion a frequent cause of failure in service. Consequently it is essential to study this mechanism of degradation in formulations developed for this purpose as well as the development and implementation of monitoring techniques for real structures.The objective of this work is to compare from the corrosion point of view two concrete formulations: one made with ordinary portland cement and the other with pozzolanic portland cement. Both formulations are candidates for nuclear applications whose durability requirement is higher than 300 years. The results of approximately four years and six months of monitoring are presented. Those parameters are: corrosion potential and corrosion rate of the reinforcements electrical resistivity oxygen flow and internal temperature of concrete. These parameters were measured in reinforced concrete specimens by embedded sensors previously developed in our laboratory. Besides the carbonation rate and chloride diffusion coefficient were also measured using unreinforced specimens. The presence of reinforcements provides the possibility of monitoring directly on them the corrosion potential the corrosion rate and electrical resistivity of concrete using a commercial instrument widely used in the work reported in the literature. This allows comparison of different parameters associated with the corrosion process monitored by embedded sensors and the commercial instrument.

Key words: Reinforced concrete corrosion, durability of reinforced concrete, nuclear materials

Product tags
Also Purchased
Picture for Hydrogen Cracks in Belgian Nuclear Reactor Pressure Vessels: Five Years After Their Discovery
Available for download

Hydrogen Cracks in Belgian Nuclear Reactor Pressure Vessels: Five Years After Their Discovery

Product Number: 51317--9457-SG
ISBN: 9457 2017 CP
Author: Walter Bogaerts
Publication Date: 2017
$20.00

Elaborates on some reported findings and identifies possible mechanisms and risks for further growth of defects in the reactor pressure vessel walls in the Belgian nuclear power reactors Doel 3 and Tihange 2 – which were restarted in 2015 after inspection found “thousands” of “hydrogen flaws”.
Picture for 08RTS08 MIC of Nuclear Waste Containers
Available for download

08RTS08 MIC of Nuclear Waste Containers

Product Number: 51300-08RTS08-SG
ISBN: 08RTS08 2008 CP
Author: Fraser King
Publication Date: 2008
$20.00
Picture for US Nuclear Regulatory Commission Activities Regarding Buried and Underground Piping at Nuclear Power
Available for download

51315-5511-US Nuclear Regulatory Commission Activities Regarding Buried and Underground Piping at Nuclear Power

Product Number: 51315-5511-SG
ISBN: 5511 2015 CP
Author: David Alley
Publication Date: 2015
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support