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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Al-Neshawy, Fahim
Aalto University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2023The Effect of Heat Curing on the Early-Strength Development of Low-Carbon Concrete
- 2023Comprehensive state-of-the-art report for long-term behaviour of concrete structures in repository environment
- 2023Comprehensive state-of-the-art report for long-term behaviour of concrete structures in repository environment
- 2023Combined NDT methods to determine the variations in compressive strength throughout concrete structures
- 2023Reduction of CO2 Emission by Using Low Carbon Concretes with Accelerating Admixtures
- 2023Assessment procedure of determining compressive strength of hardened reinforced concrete structures
- 2023Determining the Location of Steel Reinforcement in Thick Concrete Walls by Non-Destructive Inspection
- 2021Factors for compactibility and risk of segregation for concrete
- 2021Investigation on the effect of entrained air on pore structure in hardened concrete using MIPcitations
- 2021Factors for compactibility and risk of segregation for concrete - Report for contract research project "Compact Air" ; Betonin tiivistettävyyteen ja erottumisherkkyyteen vaikuttavat tekijät – Raportti tilaustutkimusprojektista "Compact Air"
- 2019Design, construction, and NDT of a mock-up for reinforced concrete walls in NPP
- 2019Betonin koostumuksen vaikutus sen tiivistettävyyteen
- 2018Mock-up wall for NDT&E of NPP thick-walled reinforced concrete structures
- 2018Mock-up wall for non-destructive testing and evaluation of thick reinforced concrete structures in nuclear power plants
- 2017“NDT MATRIX” - A Tool for Selecting Non-Destructive Testing Methods for NPP Concrete Structures
- 2016Chemical changes of cement pastes due to the effect of combined carbonation and chloride penetration
- 2016Selection Matrix for Non-Destructive Testing of NPP Concrete Structures
- 2013Condition assessments and corrosion measurements of cooling water chambers in a nuclear power plant
- 2013Condition assessments and corrosion measurements of cooling water chambers in a nuclear power plant
Places of action
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article
Determining the Location of Steel Reinforcement in Thick Concrete Walls by Non-Destructive Inspection
Abstract
Concrete cover is the thickness of the concrete layer that protects the reinforcing steel bars (rebar) within a reinforced concrete structure. It acts as a barrier against external elements such as moisture, chemicals, and environmental factors, safeguarding the rebar from corrosion. Concrete cover measurement is performed by using various nondestructive tests such as GPS (Ground Penetrating Radar), electromagnetic test and ultrasonic. The main benefit of the concrete cover thickness measurement is to explain the causes of corrosion and identify areas that have the capability to corrode faster.<br/><br/>This paper discusses the possibilities to measure the concrete cover depth and determine the location of steel bars of a thick-walled concrete structure by using different nondestructive testing methods. The methods studied are a concrete cover meter, Ground Penetrating Radar, which is based on propagation radar waves in concrete, and Ultrasonic Pulse Echo tomography based on stress waves produced by ultrasonic pulses. The paper demonstrates the use of these methods for in-situ measurements on a thick-walled reinforced concrete structure. The concrete cover depth and the location for the reinforcement bars received by different methods are compared and the strong and weak points of the methods are discussed.<br/><br/>The results indicate that the concrete cover meter is suitable for measuring the thickness of concrete cover, while the Ground Penetrating Radar and the Ultrasonic Pulse Echo device were able to identify and locate the reinforcement bars position in the concrete structure.<br/>