This research investigates the combined effect of steel and natural fibre on the mechanical properties and spalling resistance of ultra-high performance concrete (UHPC) before and after exposure to elevated temperatures. The effects of two parameters, namely temperature (ambient temperature, 200 °C, 400 °C and 600 °C) and fibre type (solely macro end hooked steel fibre (MHS) and hybrid of micro straight steel fibre (MSS), macro end hooked steel (MHS) fibre and micro jute (MJ) fibre) on the mechanical properties, spalling resistance and mass loss of UHPC were studied.

中文翻译：

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天然纤维和钢纤维对UHPC高温热机械性能的联合影响

本研究研究了钢和天然纤维对超高性能混凝土 (UHPC) 在暴露于高温之前和之后的机械性能和抗剥落性的综合影响。两个参数的影响，即温度（环境温度，200℃、400℃和600℃）和纤维类型（单独的粗端钩状钢纤维（MHS）和微直钢纤维（MSS）的混合），粗端研究了钩钢（MHS）纤维和微黄麻（MJ）纤维）对UHPC的机械性能、抗剥落性和质量损失的影响。