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

被引：0
|
作者：
Fengzhen He
Luigi Biolzi
Valter Carvelli
Xiaowei Feng
机构：
[1] China University of Mining and Technology,School of Mines
[2] Politecnico di Milano,Department A.B.C.
来源：
Archives of Civil and Mechanical Engineering | / 24卷
关键词：
Hybrid fiber-reinforced concretes; High temperature; Mechanical properties; Post-fire re-curing;
D O I：
暂无
中图分类号：
学科分类号：
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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