| People | Locations | Statistics |
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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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Vyšvařil, Martin
Brno University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2021Effects of natural zeolite addition on the properties of lime putty-based rendering mortarscitations
- 2021Foam Glass Dust as a Supplementary Material in Lime Mortarscitations
- 2020Fresh state properties of lime mortars with foam glass dust
- 2020Fresh state properties of lime mortars with foam glass dust
- 2020Rheology of natural hydraulic lime pastes modified by non-traditional biopolymeric admixturescitations
- 2019Influence of biopolymeric water-retaining admixtures on hydration of Portland cement studied using isothermal calorimetrycitations
- 2019Rheology of natural hydraulic lime pastes modified by non-traditional biopolymeric admixturescitations
- 2019Rheological and mechanical properties of alkali-activated brick powder based pastes: effect of amount of alkali activatorcitations
- 2018Red-clay ceramic powders as geopolymer precursors: Consideration of amorphous portion and CaO contentcitations
- 2018Hygric parameters of ternary binder based plasters lightweighted by expanded perlite
- 2018Rheological properties and microstructure of binary waste red brick powder /metakaolin geopolymercitations
- 2018Rheological Properties of Lime Mortars with Guar Gum Derivativescitations
- 2018Ternary binder based plasters with improved thermal insulating ability ; Omítky z ternárních směsí s vylepšenými tepelně izolačními schopnostmicitations
- 2018Rheological and mechanical properties of alkali-activated brick powder based pastes: effect of amount of alkali activatorcitations
- 2018Hygric and mechanical parameters of ternary binder based plasters lightweighted by expanded perlitecitations
- 2018Effect of particle size of waste brick powder on the properties of alkaline activated materialscitations
- 2018Rheological Properties of Alkali-Activated Brick Powder Based Pastes: Effect of Alkali Activator and Silicate Moduluscitations
- 2017Ternary binder based plasters with improved thermal insulating abilitycitations
- 2016Immobilization of Heavy Metals in Natural Zeolite-blended Cement Pastes citations
- 2015One-year sulfate attack on various types of fine grained concrete
- 2015Microstructural changes of fine-grained concrete exposed to a sulfate attackcitations
- 2014Physico-mechanical and microstructural properties of rehydrated blended cement pastes
- 2009Synthesis and characterization of new imidophosphanes and phosphine oxides containing 3,3,4,4-tetramethylsuccinimidyl group
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document
One-year sulfate attack on various types of fine grained concrete
Abstract
Concrete shows extensive degradation when exposed to the external sulfate attack, characterized by ingress of sulfate ions from surrounding medium. This process leads to gradual pH decrease, to expansion, cracking, spalling of concrete, and finally to the complete disintegration of the material. Sulfate attack becomes a major destructor in sewage collection systems where the concrete sewer pipes are exposed to sulfates from wastewater as well as from biogenic activity of bacteria. This paper is focused on the sulfate attack on fine grained concrete where the effect of 0.5% sulfuric acid, simulating biogenic sulfuric acid corrosion, 5% sodium sulfate solution and solution simulating sewage water on various types of concrete has been investigated. The concrete specimens were characterized after exposition to corroding media by their mechanical parameters, microstructure and in the case of H2SO4 as the most aggressive corroding solution, the mineralogical composition was also determined by XRD analysis. It was found that the exposition to Na2SO4 solution twofold improved flexural strengths of concrete mixes based on Portland and sulfate-resisting cements. Contrary, the exposition to H2SO4 solution significantly decreased compressive strengths of all types of concrete