| Issue |
E3S Web of Conf.
Volume 488, 2024
1st International Conference on Advanced Materials & Sustainable Energy Technologies (AMSET2023)
|
|
|---|---|---|
| Article Number | 03003 | |
| Number of page(s) | 11 | |
| Section | Green Buildings; Carbon Capture & Recycling of Energy Materials | |
| DOI | https://doi.org/10.1051/e3sconf/202448803003 | |
| Published online | 06 February 2024 | |
Effect of nanosized titanium dioxide and zinc oxide as antimicrobial agents on early compressive strength of high-performance concrete
1 Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia
2 Department of Civil Engineering, Osun State University, Osogbo, Nigeria
3 Laboratoire Angevin de Mécanique, Procédés et Innovation, École Nationale Supérieure d’Arts et Métiers, Angers, France
4 Institute of Self-Sustainable Buildings for Smart Living, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia
* Corresponding author: abiola_22007022@utp.edu.my
Incorporation of antimicrobial agents in concrete can enhance the resistance of the concrete to biodeterioration. However, there is lack of adequate knowledge on the effect of antimicrobial agents on performance measures of high-performance concrete (HPC), particularly during early strength development, when the hydration reaction is ongoing, is not well understood. Therefore, the effect of antimicrobial agents on early compressive strength (CS) of HPC was investigated. The cement in HPC samples was partially replaced with nanosized titanium dioxide (TiO2) and zinc oxide (ZnO) by up to 2% by weight of the cement. Using response surface methodology, 21 combinations of TiO2 and ZnO contents were generated. The combinations were adopted for preparation of the samples. Individual and combined effects of TiO2 and ZnO on 7-day CS of the samples were evaluated. The standard form of the second-order response surface model is adopted to develop a model to fit the strength data. Statistics of the data verify that the model can be employed to predict the 7-day CS of HPC that employs nanosized TiO2 and ZnO as antimicrobial agents.
© The Authors, published by EDP Sciences, 2024
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