Studying the Impact of Cement-Based and Geopolymer Concrete on the Proliferation of Escherichia coli and Staphylococcus aureus in Water-Related Applications
Beata Figiela, Bożena Tyliszczak, Magdalena Bańkosz, Aleksandar Nikolov, Kinga Korniejenko
TL;DR
This study tests how new geopolymer concrete can inhibit bacteria growth in water environments, showing better performance than traditional cement.
Contribution
The novelty lies in evaluating geopolymer composites for bacterial inhibition in water-related applications.
Findings
Geopolymer composites showed better antibacterial efficiency than cement for both Gram-positive and Gram-negative bacteria.
Bacterial growth was inhibited after several days on the tested materials.
The geopolymer matrix contained significant amounts of SiO2 and quartz.
Abstract
The main aim of this research was to synthesize the new geopolymer composite and test its antibacterial properties. The new composites are based on a geopolymer matrix, with the addition of carbon fiber, nano-silica and antibacterial nanopowder. The first stage of this research was the synthesis of geopolymer composites containing variable proportions of nano-additives and, as a reference material, cement. The next step was bacterial cultivation. Two different bacterial strains were selected, Gram-positive and Gram-negative (Escherichia coli and Staphylococcus aureus). In this stage, the agar microbiological medium is used for the evaluation of bacterial growth inhibition by cement and geopolymers. In the final stage, the growth of the colony was observed and the pH measurements were taken. The final assessment of efficiency was made by using optical microscopy and a colony counter…
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Taxonomy
TopicsBuilding materials and conservation · Microbial Applications in Construction Materials · Concrete and Cement Materials Research