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- W4281635530 abstract "Ultra-High-Performance Concrete (UHPC) is a relatively new form of concrete, with improved compressive and tensile strengths compared to traditional reinforced concrete. As it is a younger material, knowledge gaps exist in certain aspects such as fire performance. The dense microstructure of UHPC contributes to its high strength, however it also requires a special mix design consideration to enable dissipation of vapour pressure to avoid explosive spalling during fires. This paper presents a review of the studies on the fire performance of UHPC and identifies the areas that require further investigation. Findings show that, when used alone, steel fibres do not improve the fire resistance of UHPC. Synthetic fibres, such as polypropylene (PP) fibres, have been found to be more effective in improving the fire performance and preventing explosive spalling. The review shows that little attention has been paid to studying the performance of UHPC during exposure to elevated temperature, especially on the structural level. In response to the identified research gaps, a comprehensive research project at Queen’s University has been initiated to assess the fire performance of double-wythe insulated (DWI) wall panels made with UHPC. Prior to performing a set of full-scale fire tests, smaller-scale compressive and tensile concrete specimens reinforced with various amounts and combinations of polyvinyl-alcohol (PVA) fibres and PP fibres will be tested at temperatures as high as 500 °C under steady-state and transient temperature heating regimes." @default.
- W4281635530 created "2022-06-13" @default.
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- W4281635530 date "2022-06-01" @default.
- W4281635530 modified "2023-10-16" @default.
- W4281635530 title "Fire Performance of Ultra-High Performance Concrete" @default.
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- W4281635530 doi "https://doi.org/10.1007/978-981-19-0503-2_18" @default.
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