Characteristics of Impact Elastic Wave Propagation in Concrete after Freeze-Thaw Cycle

被引：0

作者：

Dong Y. ^{[1
]}

Lu M. ^{[2
]}

Zheng L. ^{[1
]}

Lu H. ^{[1
]}

机构：

[1] Diagnostic Technology on Health of Hydraulic Structures Engineering Research Center of Chongqing Education Commission of China, Chongqing Jiaotong University, Chongqing

[2] Hunan Runfengyuan Hydrotechnics Service Consulting Co., Ltd., Chenzhou

来源：

Jianzhu Cailiao Xuebao/Journal of Building Materials | 2019年 / 22卷 / 06期

关键词：

Concrete; Durability; Dynamic elastic modulus; Freeze-thaw cycle; Impact elastic wave;

D O I：

10.3969/j.issn.1007-9629.2019.06.014

中图分类号：

学科分类号：

摘要：

The influences of freeze-thaw cycles and water-cement ratio on mass loss ratio, dynamic elastic modulus, and impact elastic wave speed were observed. The reliability of measuring dynamic elastic modulus by impact-echo method was investigated. Results show that the mass loss ratio and dynamic elastic modulus of concrete decrease gradually when number of freeze-thaw cycle increases. The mass loss increases, dynamic elastic modulus and impact elastic wave speed decrease when the water-cement ratio increases. The dynamic elastic modulus measured by impact-echo method is consistent with that measured by resonance method in standard. © 2019, Editorial Department of Journal of Building Materials. All right reserved.

引用

页码：928 / 932

页数：4

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