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<p>High performance concrete (HPC) has acquired a worldwide application; however, it may confront a heightened risk of fire exposure which can pose a risk to its behavior. Researchers have performed several investigations to unveil the mechanical performance of HPC under elevated temperatures. The research aims to offer an extensive overview of existing literature concerning the impact of elevated temperatures on the mechanical performance of HPC mixtures, like concrete spalling, modulus of elasticity, mass loss, compressive strength, splitting tensile strength, and durability performance. This study systematically compiles the mechanical characteristics of HPC under high temperatures. It further outlines the spalling attitude of HPC under elevated temperatures. It also identifies the strategies and mechanisms for improving the efficiency of HPC subjected to elevated temperatures. The results concluded that the durability, mass reduction, and concrete spalling are vital indicators for evaluating the mechanical behavior of HPC under high temperatures. As the exposure temperature increased, the mechanical performance of HPC decreased. Additionally, weight loss increased nonlinearly with the highest temperature, and sudden cooling led to a loss in strength of concrete. The specimen size was found to be a crucial factor in deterioration of HPC. Each test result reported in this study represents the average of three specimens per concrete mix tested under each thermal exposure condition. Increasing specimen size reduces the loss of compressive strength. The compressive strength of HPC subjected to temperature above 800&#xa0;°C unaffected by the water content of HPC. Various factors like fiber volume and type, concrete quality, replacement levels, and heating conditions influence the mechanical performance of HPC under elevated temperatures. The mechanical performance of HPC under elevated temperatures is influenced by various factors, including the volume and type of reinforcing fibers, concrete quality, replacement levels, and heating conditions. This article also highlights future research advancements needed in this domain. Ultimately, recommendations are proposed for enhancing the fire safety of HPC structures.</p>

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A comprehensive review on the influence of elevated temperatures on the mechanical performance of high-performance concretes

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年8月7日

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  • Abdulaziz Alaskar

摘要

High performance concrete (HPC) has acquired a worldwide application; however, it may confront a heightened risk of fire exposure which can pose a risk to its behavior. Researchers have performed several investigations to unveil the mechanical performance of HPC under elevated temperatures. The research aims to offer an extensive overview of existing literature concerning the impact of elevated temperatures on the mechanical performance of HPC mixtures, like concrete spalling, modulus of elasticity, mass loss, compressive strength, splitting tensile strength, and durability performance. This study systematically compiles the mechanical characteristics of HPC under high temperatures. It further outlines the spalling attitude of HPC under elevated temperatures. It also identifies the strategies and mechanisms for improving the efficiency of HPC subjected to elevated temperatures. The results concluded that the durability, mass reduction, and concrete spalling are vital indicators for evaluating the mechanical behavior of HPC under high temperatures. As the exposure temperature increased, the mechanical performance of HPC decreased. Additionally, weight loss increased nonlinearly with the highest temperature, and sudden cooling led to a loss in strength of concrete. The specimen size was found to be a crucial factor in deterioration of HPC. Each test result reported in this study represents the average of three specimens per concrete mix tested under each thermal exposure condition. Increasing specimen size reduces the loss of compressive strength. The compressive strength of HPC subjected to temperature above 800 °C unaffected by the water content of HPC. Various factors like fiber volume and type, concrete quality, replacement levels, and heating conditions influence the mechanical performance of HPC under elevated temperatures. The mechanical performance of HPC under elevated temperatures is influenced by various factors, including the volume and type of reinforcing fibers, concrete quality, replacement levels, and heating conditions. This article also highlights future research advancements needed in this domain. Ultimately, recommendations are proposed for enhancing the fire safety of HPC structures.