Detecting freezing and thawing damage in concrete using signal energy

被引：26

作者：

Akhras, NM ^{[1
]}

机构：

[1] Jordan Univ Sci & Technol, Dept Civil Engn, Irbid, Jordan

来源：

CEMENT AND CONCRETE RESEARCH | 1998年 / 28卷 / 09期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0008-8846(98)00101-X

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

An experimental program was developed to detect freezing and thawing damage in Portland cement concrete using ultrasonic waves. The ultrasonic measurements were conducted, using the indirect method, at 54 kHz. Signal energy of ultrasonic waves was found more sensitive than ultrasonic wave velocity in detection of freezing and thawing damage at initial stage. However, ultrasonic wave velocity was found more sensitive when the damage is severe. Variations in the power spectra were also used to indicate freezing and thawing damage. (C) 1998 Elsevier Science Ltd.

引用

页码：1275 / 1280

页数：6