Monitoring of cracking and healing in an ultra high performance cementitious material using the time reversal technique

被引：34

作者：

Granger, S. ^{[2
]}

Cabot, G. Pijaudier ^{[1
]}

Loukili, A. ^{[2
]}

Marlot, D. ^{[3
]}

Lenain, J. C. ^{[3
]}

机构：

[1] Univ Pau & Pays Adour, Lab Fluides Complexes, ISA BTP, F-64600 Anglet, France

[2] Ecole Cent Nantes, R&DO Inst Rech Genie Civil & Mecan, CNRS, UMR 6183, F-44321 Nantes 3, France

[3] Euro Phys Acoust, ZAC Portes Sucy, F-94370 Sucy En Brie, France

来源：

CEMENT AND CONCRETE RESEARCH | 2009年 / 39卷 / 04期

关键词：

Acoustics; Time reversal; Cracking; Healing; Non-destructive technique; CONCRETE;

D O I：

10.1016/j.cemconres.2009.01.004

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A non-destructive testing technique based on the time reversal principle is applied to cementitious materials. Preliminary results are presented showing the reversibility of wave propagation and that focusing by time reversal is feasible in cementitious materials. Then, the technique is implemented on a mechanical test in order to monitor the cracking process of a concrete specimen loaded under three point bending. The acoustic mirror permits qualitative monitoring of the propagation of a crack by analyzing the focusing of a reference signal on a sensor placed near the expected crack path. A decrease of energy and of amplitude of the focused signal is observed upon cracking. Then, the specimen made of a material with high capabilities of self healing, is immersed in water, and healing processes are monitored. The results show a recovery of signal focusing upon healing. Comparisons with mechanical test data indicate that the method is sensitive to the variation of stiffness of the structure due to crack propagation and crack healing. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：296 / 302

页数：7

共 21 条

[1] Diffusion of ultrasound in concrete [J].

Anugonda, P ;

Wiehn, JS ;

Turner, JA .

ULTRASONICS, 2001, 39 (06) :429-435

[2]

BERCOFF J, 2003, ULTRASOUND MED BIOL, V48, P2577

[3] How to combine several non-destructive techniques for a better assessment of concrete structures [J].

Breysse, D. ;

Klysz, G. ;

Derobert, X. ;

Sirieix, C. ;

Lataste, J. F. .

CEMENT AND CONCRETE RESEARCH, 2008, 38 (06) :783-793

[4] Concrete damage evolution analysis by backscattered ultrasonic waves [J].

Chaix, JF ;

Garnier, V ;

Corneloup, G .

NDT & E INTERNATIONAL, 2003, 36 (07) :461-469

[5] Nondestructive evaluation of cylindrical parts using laser ultrasonics [J].

Clorennec, D ;

Royer, D ;

Walaszek, H .

ULTRASONICS, 2002, 40 (1-8) :783-789

[6] One-channel time reversal of elastic waves in a chaotic 2D-silicon cavity [J].

Draeger, C ;

Fink, M .

PHYSICAL REVIEW LETTERS, 1997, 79 (03) :407-410

[7]

Edvardsen C, 1999, ACI MATER J, V96, P448

[8] Time-reversal acoustics in biomedical engineering [J].

Fink, M ;

Montaldo, G ;

Tanter, M .

ANNUAL REVIEW OF BIOMEDICAL ENGINEERING, 2003, 5 :465-497

[9]

Fink M., 1992, IEEE T ULTRASONICS F, V39

[10]

FINK M, 1999, SCI AM NOV, P67

← 1 2 3 →