Dynamic compression behavior of heated concrete

Chuanxiong Liu; Yulong Li; Ziyan Wu; Weiguo Guo; Yuzhuo Ge

Dynamic compression behavior of heated concrete

Chuanxiong Liu, Yulong Li, Ziyan Wu, Weiguo Guo, Yuzhuo Ge

民航学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

11 引用（Scopus）

摘要

Experiments were carried out by using SHPB(φ100 mm) (Split Hopkinson Pressure Bar) apparatus for concrete after exposure to 23~800 °C. The diameters of coarse aggregates in the concrete ranged form 15 mm to 20 mm, and the SHPB experiments involve strain rates between 30 s^-1 and 220 s^-1. Results show that the heated concrete was weakened, and there was strain-rate effect on strength enhancement, with the normalized strength decreasing approximate linearly with the increase of the logarithm of the normalized temperature. Degradation of the compressive strength of the heated concrete was dominant.

源语言	英语
页（从-至）	78-83
页数	6
期刊	Tumu Gongcheng Xuebao/China Civil Engineering Journal
卷	44
期	4
出版状态	已出版 - 4月 2011

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author = "Chuanxiong Liu and Yulong Li and Ziyan Wu and Weiguo Guo and Yuzhuo Ge",

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T1 - Dynamic compression behavior of heated concrete

AU - Liu, Chuanxiong

AU - Li, Yulong

AU - Wu, Ziyan

AU - Guo, Weiguo

AU - Ge, Yuzhuo

PY - 2011/4

Y1 - 2011/4

N2 - Experiments were carried out by using SHPB(φ100 mm) (Split Hopkinson Pressure Bar) apparatus for concrete after exposure to 23~800 °C. The diameters of coarse aggregates in the concrete ranged form 15 mm to 20 mm, and the SHPB experiments involve strain rates between 30 s-1 and 220 s-1. Results show that the heated concrete was weakened, and there was strain-rate effect on strength enhancement, with the normalized strength decreasing approximate linearly with the increase of the logarithm of the normalized temperature. Degradation of the compressive strength of the heated concrete was dominant.

AB - Experiments were carried out by using SHPB(φ100 mm) (Split Hopkinson Pressure Bar) apparatus for concrete after exposure to 23~800 °C. The diameters of coarse aggregates in the concrete ranged form 15 mm to 20 mm, and the SHPB experiments involve strain rates between 30 s-1 and 220 s-1. Results show that the heated concrete was weakened, and there was strain-rate effect on strength enhancement, with the normalized strength decreasing approximate linearly with the increase of the logarithm of the normalized temperature. Degradation of the compressive strength of the heated concrete was dominant.

KW - Concrete

KW - Normalized strength

KW - SHPB

KW - Strain-rate

KW - Temperature

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JO - Tumu Gongcheng Xuebao/China Civil Engineering Journal

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IS - 4

ER -

Dynamic compression behavior of heated concrete

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