Comparative Fire Behavior of Reinforced Concrete Beams Made of Different Concrete Strengths

被引：12

作者：

Kodur, V. K. R. ^{[1
]}

Banerji, S. ^{[2
]}

机构：

[1] Michigan State Univ, Dept Civil & Environm Engn, E Lansing, MI 48824 USA

[2] Utah State Univ, Dept Civil & Environm Engn, Logan, UT USA

来源：

FIRE TECHNOLOGY | 2024年 / 60卷 / 05期

关键词：

Fire resistance; Fire-induced spalling; Fire tests; Reinforced concrete beams; Ultra-high performance concrete; HIGH-PERFORMANCE CONCRETE; REACTIVE POWDER CONCRETE; STEEL FIBERS; HIGH-TEMPERATURE; AGGREGATE SIZE; RESISTANCE; UHPC; POLYPROPYLENE; INCLUSION; DESIGN;

D O I：

10.1007/s10694-023-01375-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper presents the comparative fire performance of reinforced concrete (RC) beams made of concretes with different strengths by undertaking fire resistance tests. Four RC beams made of normal strength concrete (NSC), high strength concrete (HSC), and ultra-high performance concrete (UHPC) with different fiber combinations, were subjected to structural loading and tested under fire conditions. Results from the fire resistance tests show that UHPC beams undergo severe fire-induced spalling and exhibit lower fire resistance as compared to HSC and NSC beams. Additionally, the inclusion of polypropylene (PP) fibers in UHPC beams aids in reducing spalling and increasing fire resistance in UHPC beams.

引用

页码：3117 / 3146

页数：30

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