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• W4387045739 endingPage "e0289497" @default.
• W4387045739 startingPage "e0289497" @default.
• W4387045739 abstract "The aim of this study is to evaluate the synergistic effect of polyester fiber-reinforced and nanoslica on the technical performance and durability of geopolymer mortar in terms of the chemical resistance. The study examined how the addition of polyester fiber and nanosilica affects the short-term severe durability of geopolymer mortar specimens made with fly ash (type F). The specimens were cured under ambient conditions. Different percentages (0.6%, 1.2%, and 1.8%) of polyester fiber were used, both with and without nanosilica. Additionally, a reference mixture containing only nanosilica was prepared.All mixtures had a liquid to binder ratio of 0.50, and the ratio of NaOH to Na 2 SiO 3 solution was kept at 2.5:1 by weight. The produced mixes, after 28 days of ambient curing, were immersed for another 28 days in solutions containing 3.5%, 5%, and 5% of sodium chloride, magnesium sulphate and sulfuric acid, respectively. For comparison, control specimens which were not exposed to chemical attacks were tested at the same age of 56 days. Moreover, water absorption and sorptivity tests were conducted to explain the durability performance in a more detailed way. The test results express that the combination of both materials showed a synergistic effect and resulted in greater improvements in compressive and flexural strengths. Both materials can reduce the reduction in compressive strength caused by sulfuric acid exposure, but polyester fiber can increase mass loss. The presence of magnesium sulfate and sodium chloride can lead to a reduction in strength, but the addition of both polyester fiber and nanosilica can mitigate these effects. The addition of fibers creates a network of pores that can limit water absorption, and nanosilica can further enhance the microstructure and reduce water absorption. However, using polyester fiber beyond 1.2 percent can adversely affect the rate of water absorption." @default.
• W4387045739 created "2023-09-27" @default.
• W4387045739 creator A5030683459 @default.
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• W4387045739 date "2023-09-26" @default.
• W4387045739 modified "2023-10-14" @default.
• W4387045739 title "Synergic effect of polyester fiber and nano silica on chemical resistance of geopolymer mortar" @default.
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• W4387045739 doi "https://doi.org/10.1371/journal.pone.0289497" @default.
• W4387045739 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/37751445" @default.
• W4387045739 hasPublicationYear "2023" @default.
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