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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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Suryanto, Benny
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2024Probabilistic approach to the sustainability assessment of reinforced concrete structures in conditions of climate changecitations
- 2023Features of Immittance Spectra as Performance Indicators for Cement-Based Concretescitations
- 2021The electro-mechanical tensile properties of an engineered cementitious compositecitations
- 2021Low Carbon Recycled Aggregate Concrete
- 2021Cover-zone protective qualities under corrosive environmentscitations
- 2020Moisture movement within concrete exposed to simulated hot arid/semi-arid conditionscitations
- 2020Assessing the performance and transport properties of concrete using electrical property measurementscitations
- 2019Conduction, relaxation and complex impedance studies on Portland cement mortars during freezing and thawingcitations
- 2019In-Situ Conductivity Measurements to Monitor Moisture Profiles of Concrete in Hot Climates
- 2018Impedance measurements on an engineered cementitious composite: a critical evaluation of testing protocolscitations
- 2018Performance assessment of reinforced concrete after long-term exposure to a marine environmentcitations
- 2018Transient moisture profiles in cover-zone concrete during water absorptioncitations
- 2017Characterization of fly-ash using electrochemical impedance spectroscopycitations
- 2017A Testing Methodology for Performance-Based Specificationcitations
- 2017Frequency- and Time- Domain Dependency of Electrical Properties of Cement-Based Materials During Early Hydrationcitations
- 2016Monitoring micro-crack healing in an engineered cementitious composite using the environmental scanning electron microscopecitations
- 2016Chloride ingress into marine exposed concrete: A comparison of empirical- and physically- based modelscitations
- 2016Electrochemical immittance spectroscopy applied to a hybrid PVA/steel fiber engineered cementitious compositecitations
- 2015Two-point concrete resistivity measurementscitations
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article
Monitoring micro-crack healing in an engineered cementitious composite using the environmental scanning electron microscope
Abstract
Environmental Scanning Electron Microscopy (ESEM) is used to study the origin of micro-crack healing in an Engineered Cementitious Composite (ECC). ESEM images were acquired from ECC specimens cut from pre-cracked, dog-bone samples which then subjected to submerged curing followed by exposure to the natural environment. The mineralogical and chemical compositions of the healing products were determined using the EDX facility in the ESEM. It is shown that the precipitation of calcium carbonate is the main contributor to micro-crack healing at the crack mouth. The healing products initially appeared in an angular rhombohedral morphology which then underwent a discernable transformation in size, shape and surface texture, from relatively flat and smooth to irregular and rough, resembling the texture of the original surface areas surrounding the micro-cracks. It is also shown that exposure to the natural environment, involving intermittent wetting/drying cycles, promotes additional crystal growth, which indicates enhanced self-healing capability in this environment.