Influence of aggregates on ultrasonic elastic waves propagation in concrete

被引：6
|
作者：
Otsuki, N [1 ]
Iwanami, M [1 ]
Miyazato, S [1 ]
Hara, N [1 ]
机构：
[1] Tokyo Inst Technol, Fac Engn, Meguro Ku, Tokyo 152, Japan
来源：
NON-DESTRUCTIVE TESTING IN CIVIL ENGINEERING 2000: SEIKEN SYMPOSIUM NO. 26 | 2000年
关键词：
concrete; aggregates; elastic waves; velocity; frequency; scattering;
D O I：
10.1016/B978-008043717-0/50033-7
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this study, the ultrasonic elastic waves propagation (hereafter referred as UEWP) behavior in concrete was investigated through the experimental and theoretical approach, mainly focusing on the influence of aggregates. The experimental factors were the maximum size, the volume percentage, and the acoustical impedance of aggregates. The velocity and the frequency characteristics of the UEWP through concrete were examined. For calculating the scattering of elastic waves by aggregates, Mason's method was adapted. The main conclusion is "The maximum size of aggregates 'influences the frequency distribution, however, is not a key factor for the velocity. On the other hand, the volume percentage of aggregate is very influential on both the frequency distribution and the velocity".
引用
收藏
页码：313 / 322
页数：4
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