A review on the mechanical characteristics of thermally damaged steel and polypropylene hybrid fiber-reinforced concretes

被引：3
|
作者：
He, Fengzhen [1 ]
Biolzi, Luigi [2 ]
Carvelli, Valter [2 ]
Feng, Xiaowei [1 ]
机构：
[1] China Univ Min & Technol, Sch Mines, Xuzhou 221116, Peoples R China
[2] Politecn Milan, Dept ABC, Piazza Leonardo Vinci 32, I-20133 Milan, Italy
来源：
ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING | 2024年 / 24卷 / 02期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Hybrid fiber-reinforced concretes; High temperature; Mechanical properties; Post-fire re-curing; HIGH-STRENGTH CONCRETE; HIGH-PERFORMANCE CONCRETE; HIGH-TEMPERATURE BEHAVIOR; TESTING CONDITIONS HOT; CEMENT PASTE; PORE PRESSURE; FIRE RESISTANCE; COMPRESSIVE BEHAVIOR; FLEXURAL TOUGHNESS; RESIDUAL STRENGTH;
D O I：
10.1007/s43452-024-00880-2
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Steel and polypropylene hybrid fiber-reinforced concretes have been widely considered for structural applications due to its superior mechanical performance compared to plain and mono fiber-reinforced concretes. Fire is one of the most serious potential risks to concrete structures. The fire resistance of the steel and polypropylene hybrid fiber-reinforced concretes cannot be ignored when assessing the safety of concrete structures. This paper reviews the available studies on the mechanical performance of thermally damaged steel and polypropylene hybrid fiber-reinforced concretes. The deterioration mechanism and the influence of the test factors were discussed. The temperature-dependent mechanical properties of the hybrid fiber-reinforced concretes were analyzed, including compressive elastic modulus, compressive strength, flexural strength, and fracture toughness. In addition, the effect of the post-fire re-curing on the mechanical performance of the thermally damaged steel and polypropylene hybrid fiber-reinforced concretes was also reviewed.
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页数：21
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