The effects of curing medium on the flexural strength and water permeability of cementitious composites containing Fe2O3 nanofillers
Abstract
In this study, the effect of limewater on the flexural strength and water permeability of concrete containing Fe 2 O 3 nanoparticles has been investigated. Portland cement was partially replaced by Fe 2 O 3 nanoparticles as nano-fillers with 0.5, 1.0, 1.5 and 2.0 wt.%. Curing of the specimens was carried out in water and saturated limewater for 7, 28 and 90 days. The results indicate that replacement of cement by Fe 2 O 3 nanoparticles up to 2.0 wt.% produces concrete with improved flexural strength and water permeability when the specimens are cured in saturated limewater. The level of replacement for the specimens cured in water is 1.0 wt.%. Fe 2 O 3 nanoparticles can improve the filler effect and the high reactivity of fine particles also substantially increases the quantity of strengthening gel.
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The improved flexural strength may be due to enhanced C-S-H gel formation in the presence of TiO2 nanoparticles.
“The improved flexural strength may be due to the enhanced C-S-H gel formation that occurs in the presence of TiO2 nanoparticles. This is the same as what was researched by Nazari et al. [49].”
From Analyzing the Effects of Nano-Titanium Dioxide and Nano-Zinc Oxide Nanoparticles on the Mechanical and Durability Properties of Self-Cleaning Concrete (2023) · cites this paper as [49]
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Mostafa, F. E.-Z. M., Smarzewski, P., El Hafez, G. M. A., Farghali, A. A., Morsi, W. M., Faried, A. S., & Tawfik, T. A. (2023) · Materials · doi:10.3390/ma16216909 · Cited by 35 · see citing works
- Authors
- Nazari, A., & Riahi, S.
- Affiliations
- Islamic Azad University Saveh (IR)
- ORCID
- Nazari, Ali
- Venue
- International Journal of Materials Research
- Publisher
- Walter de Gruyter GmbH
- Published
- 2011-10-01
- Volume
- 102
- Issue
- 10
- Pages
- 1312-1317
- ISSN
- 0044-3093 (ISSN-L)
- 2195-8556
- 1862-5282
- OpenAlex
- W1992877019
- Cited by
- 4
- References
- 0
- Citations by year
- 2023: 1 · 2022: 1 · 2020: 1 · 2013: 1
- FWCI
- 0.92
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde) (publishedVersion)
- Topics
- Physical Sciences › Engineering › Civil and Structural Engineering › Concrete and Cement Materials Research
- Physical Sciences › Engineering › Civil and Structural Engineering › Innovative concrete reinforcement materials
- Physical Sciences › Engineering › Civil and Structural Engineering › Concrete Properties and Behavior
- Keywords
- Fe2O3 nanoparticles, cementitious composites, flexural strength, water permeability, partial cement replacement, nanofillers, filler effect, cement hydration
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