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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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Böhm, Martin
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2024Comparison of Bending Properties of Sandwich Structures Using Conventional and 3D-Printed Core with Flax Fiber Reinforcement
- 2024Effects of Prolonged Leaching on the Acute Ecotoxicity of Spruce-Pine Oriented Strand Board for Plants
- 2024Enhancing Functional Properties and Mold Resistance of Gypsum Plasters with Caffeine
- 2023Ecotoxicity of Caffeine as a Bio-Protective Component of Flax-Fiber-Reinforced Epoxy-Composite Building Materialcitations
- 2022Effects of Secondary Porosity on Microstructure and Mechanical Properties of SAP-Containing Lime-Based Plasterscitations
- 2022Effect of steaming temperature on microstructure and mechanical, hygric, and thermal properties of binderless rape straw fiberboardscitations
- 2022Ecotoxicity and Biodegradation of Sustainable Environment-Friendly Bone-Glue-Based Adhesive Suitable for Insulation Materialscitations
- 2022Environmental Consequences of Rubber Crumb Application: Soil and Water Pollutioncitations
- 2021Influence of Untreated Metal Waste from 3D Printing on Electrical Properties of Alkali-Activated Slag Mortarscitations
- 2021Microstructure formation of cement mortars modified by superabsorbent polymerscitations
- 2020<i>Eucalyptus camaldulensis</i>, <i>Citrus aurantium</i>, and <i>Citrus sinensis</i> Essential Oils as Antifungal Activity against <i>Aspergillus flavus</i>, <i>Aspergillus niger</i>, <i>Aspergillus terreus</i>, and <i>Fusarium culmorum</i>citations
Places of action
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article
Microstructure formation of cement mortars modified by superabsorbent polymers
Abstract
The utilization of superabsorbent polymers (SAPs) in cement-based materials has been found to be a promising means of mitigating the autogenous propagation of shrinkage and cracks. On the other hand, the undesired effects of SAPs’ application on functional properties, including mechanical strength, microstructure formation, and the evolution of hydration heat are not properly understood, given the variety in SAPs’ characteristics. To contribute to the present state-of-theart, cement mortars, modified with two grades of SAPs by dosages of 0.3%, 0.6%, and 0.9%, were designed and studied with emphasis on the relationship between the materials’ porosities and mechanical strengths. The obtained results are interpreted by scanning electron microscopy analysis and hydration heat evolution to elucidate the major changes and their driving factors. Besides the benefits associated with the mitigation of autogenous shrinkage, the achieved results point to an adverse effect of supplementation with SAP on mechanical strength at an early age, and an even more pronounced increase at a later age. The employed scanning electron microscopy images, together with mercury-intrusion porosimetry data, depict distortion in the material porosity as a result of the filling of formed voids and the closing of open ends by swelled hydrogels. Only the minor benefit of a greater cross-linking density was obtained by the formation of dense structures and the gains in mechanical strength therefrom. ; Czech Science Foundation