Cellulose Fiber Reinforced Concrete Fracture Mechanisms and Damage Detection Using Acoustic Emission

被引：5
|
作者：
Chen, Yu [1 ]
Bloomquist, David [2 ]
Crowley, Raphael [2 ]
机构：
[1] BBMA, State Key Lab Solid Waste Reuse Bldg Mat, Jindingbeilu 69, Beijing 100041, Peoples R China
[2] Univ Florida, Gainesville, FL 32611 USA
来源：
MEASUREMENT TECHNOLOGY AND ITS APPLICATION, PTS 1 AND 2 | 2013年 / 239-240卷
关键词：
Fiber reinforced concrete; SEM; fracture mechanism; acoustic emission; COMPOSITES;
D O I：
10.4028/www.scientific.net/AMM.239-240.3
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
ASTM C78 standard tests for flexural strength of concrete were conducted on cellulose fiber reinforced concrete (CFRC) specimens using varying percentages of ultimate load. During testing, Acoustic Emission (AE) signals were recorded while after testing, a scanning electron microscope (SEM) was used to visually observe surface features. SEM results appear to illustrate three important stages of the fracture process: cement cracking, fiber-cement debonding, and fiber breakage/pullout. AE results were used to bound ranges for a relationship between AE amplitude and CFRC fracture mechanisms.
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页码：3 / +
页数：2
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