Scholarlink

Various types of high-performance cementitious composites (HPCC) have been explored for the protection of reinforced concrete (RC) structural members against elevated temperature. However, there is inadequate information in this regard if both HPCC and lightweight aggregates are combined as a prospective fire-resistant material for structural members. In this study, the mortar specimens containing Ground Granulated Blast Slag (GGBS) and expanded perlite (EP) were prepared. The change in mass mechanical strength residual was conducted on the GGBS-EP mortar specimens due to exposure to elevated temperature. The experimental work was divided into two Phases. Phase 1 establishes the best mortar formulation that can resist elevated temperature containing various EP aggregate content replacing sand (E series). The replacement was calculated by percentage of the total volume which is 0% (control), 10%, 20%, 30% and 40%. The high temperature resistance behavior was interpreted by determining the residual compressive strength and flexural strength. It was found that the optimum EP content is 20% and was used in Phase 2 for further investigation. In Phase 2, six series of mortar with 0% (control), 30%, 40%, 50%, 60% and 70% of GGBS replacing Ordinary Portland Cement (OPC) with constant content of 20% (by volume) EP were prepared. Each series of mortar specimens was heated to 200, 400, 700 and 1000 ℃ with 5 ℃/min heating rate. From this study, it was revealed that the specimens composed of 20% EP and 30% GGBS resisted heat the best and recorded highest residual compressive and flexural strength after being exposed to elevated temperature.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Physico – Mechanical Behaviour of Cement Mortar Modified with Expanded Perlite and Ground Granulated Blast Furnace Slag Exposed to Elevated Temperature

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Afifudin Habulat,
  • Hamidah Mohd Saman,
  • Fariz Aswan Ahmad Zakwan

摘要

Various types of high-performance cementitious composites (HPCC) have been explored for the protection of reinforced concrete (RC) structural members against elevated temperature. However, there is inadequate information in this regard if both HPCC and lightweight aggregates are combined as a prospective fire-resistant material for structural members. In this study, the mortar specimens containing Ground Granulated Blast Slag (GGBS) and expanded perlite (EP) were prepared. The change in mass mechanical strength residual was conducted on the GGBS-EP mortar specimens due to exposure to elevated temperature. The experimental work was divided into two Phases. Phase 1 establishes the best mortar formulation that can resist elevated temperature containing various EP aggregate content replacing sand (E series). The replacement was calculated by percentage of the total volume which is 0% (control), 10%, 20%, 30% and 40%. The high temperature resistance behavior was interpreted by determining the residual compressive strength and flexural strength. It was found that the optimum EP content is 20% and was used in Phase 2 for further investigation. In Phase 2, six series of mortar with 0% (control), 30%, 40%, 50%, 60% and 70% of GGBS replacing Ordinary Portland Cement (OPC) with constant content of 20% (by volume) EP were prepared. Each series of mortar specimens was heated to 200, 400, 700 and 1000 ℃ with 5 ℃/min heating rate. From this study, it was revealed that the specimens composed of 20% EP and 30% GGBS resisted heat the best and recorded highest residual compressive and flexural strength after being exposed to elevated temperature.