Dynamic Properties of Pretreated Rubberized Concrete under Incremental Loading

被引：12
作者：
Chen, Aijiu [1 ]
Han, Xiaoyan [2 ]
Wang, Zhihao [1 ]
Guo, Tengteng [1 ]
机构：
[1] North China Univ Water Resources & Elect Power, Sch Civil Engn & Commun, Zhenzhou 450045, Peoples R China
[2] North China Univ Water Resources & Elect Power, Sch Water Conservancy, Zhenzhou 450045, Peoples R China
来源：
MATERIALS | 2021年 / 14卷 / 09期
关键词：
pretreated rubberized concrete; stress level; dynamic properties; natural frequency; flexural dynamic stiffness; damping ratio; SELF-COMPACTING CONCRETE; CRUMB-RUBBER; MECHANICAL-PROPERTIES; REINFORCED-CONCRETE; INSULATION PROPERTIES; PERFORMANCE; BEHAVIOR; WASTE; AGGREGATE; DURABILITY;
D O I：
10.3390/ma14092183
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Recycling scrap tyres as alternative aggregates of concrete is an innovative option. To clarify the dynamic properties of the pretreated rubberized concrete with some cumulative damage, the natural frequency, flexural dynamic stiffness, and damping ratio of the specimens under incremental stress level were investigated in this paper. The results indicated that the pretreatment of rubber particles improved the strength, ductility, and crack resistance of the rubberized concrete. The reduction of the flexural dynamic stiffness was clarified with the increase of concrete stress level. The addition of the pretreated rubber particles enhanced the concrete energy dissipation capacity during the destruction, and the specimen dissipated more energy with the increase of rubber content before its failure.
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页数：19
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