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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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Suiker, Asj Akke
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2024A novel approach for the lifetime prediction and structural health monitoring of concrete sewer systems exposed to biogenic sulphide corrosioncitations
- 2023Assessment of chemo-mechanical degradation of concrete sewer pipes through an integrated experimental approachcitations
- 2021In depths of paper degradation
- 2019Collapse response of two-dimensional cellular solids by plasticity and cracking:application to woodcitations
- 2019Collapse response of two-dimensional cellular solids by plasticity and crackingcitations
- 2018Numerical modeling of biogenic sulphide corrosion in concrete sewer pipes
- 2013Nucleation, kinetics and morphology of displacive phase transformations in ironcitations
- 2012Coupled thermomechanical analysis of transformation-induced plasticity in multiphase steelscitations
- 2011Parametric study of multiphase TRIP steels undergoing cyclic loading
- 2011Oxide growth and damage evolution in thermal barrier coatingscitations
- 2009A micromechanical study of the deformation behavior of TRIP-assisted multiphase steels as a function of the microstructural parameters of the retained austenite
- 2009Analysis of fracture and delamination in laminates using 3D numerical modelling
- 2008Crystallographically based model for transformation-induced plasticity in multiphase carbon steelscitations
- 2008Transformation-induced plasticity in multiphase steels subjected to thermomechanical loading
- 2007Micromechanical predictions of TRIP steel behavior as a function of microstructural parameters
- 2007Crystalline damage growth during martensitic phase transformationscitations
- 2006Modelling of the effects of grain orientation on transformation-induced plasticity in multiphase carbon steels
- 2006A multiscale thermomechanical model for cubic to tetragonal martensitic phase transformationscitations
- 2006Grain size effects in multiphase steels assisted by transformation-induced plasticitycitations
- 2005Transformation-induced plasticity in ferrous alloyscitations
- 2005Computational modelling of plasticity induced by martensitic phase transformationscitations
Places of action
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article
Assessment of chemo-mechanical degradation of concrete sewer pipes through an integrated experimental approach
Abstract
The chemo-mechanical degradation of unreinforced concrete sewer pipes applied in domestic service locations is assessed through a systematic, integrated experimental approach, considering 18 new and 35 used sewer pipes. The characteristics and environmental conditions of the sewer pipes are reported, and data obtained from surface condition classification, residual alkalinity tests and XRD analyses are combined to identify the type and degree of chemical attack of the used sewer pipes. Concrete material properties are determined by material tests on sewer pipe samples, providing quantitative insight into the age dependency of the Young’s modulus, compressive strength, tensile strength and mode I toughness. All relatively old pipes (installed in the 1920s and 1950s) show substantial chemical attack by biogenic sulphide corrosion (at the inner side of the pipe) and carbonation (at the outer side of the pipe). The time development of the corresponding corrosion depths on average follows a linear trend, whereby the corrosion rate for biogenic sulphide corrosion is about a factor of 1.3 larger than for carbonation. Due to these chemical processes, the mechanical properties of concrete may significantly depend on the age of the sewer pipe. In particular, the average compressive strength and average tensile strength decrease approximately linearly with the age of the pipe, in correspondence with relative reductions of, respectively, a factor of 1.7 and 1.5 over a period of almost 100 years. The values and time-dependent trends found for the concrete properties and corrosion depths of sewer pipes can serve as input for practical analyses and advanced numerical simulations on their bearing capacity and time-dependent degradation. The experimental results also emphasize the importance of regularly assessing the amount of chemical degradation of (especially older) in-situ sewer pipes, by determining the (decrease in) effective wall thickness via core sampling and laser profiling.