Elsevier
Virtual Special Issue  

NDT&E International of civil structures and materials towards practical assessment of roads and bridges

Primary methods:

Laser scanning #1, Capacitive probing #2, Digital imaging #3, Stress waves #4 #5, Ultrasonics #6, Ground penetrating Radar #7 #8, Microwave interferometry #9 

NDT/NDE applications are becoming important parts of quality control and condition assessment in areas such as aerospace industry, energy and power generation, petrochemical industry, and metal production. Structural integrity is of great importance for maintaining the safety, reliability, and availability of roads, bridges, tunnels, and other civil structures. Many NDT techniques first introduced in the 1980s have been revised so as to meet the challenges faced by civil engineers in light of aging and deteriorating infrastructures. The latest trend in the civil NDT methods also focuses on technology that can be applied to large inspection regions where non-contact or remote inspection may be required.

This Virtual Special Issue of NDT&E International aims to provide the latest research and development on NDE of civil structures and materials, which would be valuable to assessment and maintenance for roads, bridges, and buildings. Most of these inspections involve field investigation on a real structure or measurements on a full-scale test site. The primary techniques used include laser scanning, capacitive probing, stress waves, ultrasonics, digital imaging, ground penetrating radars, and microwave interferometry. Validations have been presented in a broad sense, ranging from numerical modeling to a variety of comparable testing methods.

1. "Validation of mobile LiDAR surveying for measuring pavement layer thicknesses and volumes",
Volume 60, December 2013, Pages 70-76
Iván Puente, Mercedes Solla, Higinio González-Jorge, Pedro Arias

Puente et al. (2013) evaluated pavement layer thickness and volume on a newly constructed highway using a laser-based surveying system LiDAR. They also verified the layer thickness accuracy using a numerical model based on two 2-D longitudinal profiles acquired with a 2.3-GHz GPR antenna.

2. "Electromagnetic characterization of grouting materials of bridge post tensioned ducts for NDT using capacitive probe",
Volume 60, December 2013, Pages 110-120
T. Bore, D. Placko, F. Taillade, P. Sabouroux

Bore et al. (2013) reported the development of a coaxial transmission line to facilitate the characterization of a capacitive probe as a non-destructive evaluation technique of grouting materials in the post tensioned ducts of bridges.
 

3. "Dynamic characteristics of suspension bridge hanger cables using digital image processing",
Volume 59, October 2013, Pages 25-33 
Sung-Wan Kim, Nam-Sik Kim

Kim and Kim (2013) also investigated the dynamic responses of bridge cables using two techniques. Digital imaging of the cables was analyzed using a motion-correction algorithm. The resulting modal frequencies were compared with those calculated using accelerometer-based methods.

4. "Experimental study for the evaluation of stress wave approaches on a group pile foundation",
Volume 47, April 2012, Pages 134-143
Yan-Hong Huang, Sheng-Huoo Ni

Huang and Ni (2012) investigated the relative performance of the sonic echo (SE), impulse response (IR), and parallel seismic (PS) tests using a field constructed pile foundation. They reported that the PS test was more consistent with regard to the length determination of the piles with a cap than those obtained using the SE and IR methods.  

5 "An automatic impact-based delamination detection system for concrete bridge decks",
Volume 45, Issue 1, January 2012, Pages 120-127
Gang Zhang, Ronald S. Harichandran, Pradeep Ramuhalli

Zhang et al. (2012) proposed a new algorithm that reduced the noise in the sounding methods for delamination detection of concrete bridge deck. The algorithm was incorporated into an automatic impact-based delamination detection (AIDD) system for field applications. 

6. "Monitoring and evaluation of self-healing in concrete using diffuse ultrasound",
Volume 57, July 2013, Pages 36-44.
Chi-Won In, R. Brett Holland, Jin-Yeon Kim, Kimberly E. Kurtis, Lawrence F. Kahn, Laurence J. Jacobs

In et al. (2013) investigated the progression of self-healing of cracked concrete using the diffuse ultrasound method. The rate of self-healing was modeled based on the experimental data of three concrete mixtures.
 

7. "Ground penetrating radar imaging of water leaks from buried pipes based on back-projection method",
Volume 47, April 2012, Pages 35-42
Sevket Demirci, Enes Yigit, Ismail H. Eskidemir, Caner Ozdemir

Demirci et al. (2011) formulated the back-projection algorithm for the synthetic aperture processing of 2-D GPR data. The resultant GPR images were further analyzed for the leakage detection of a water pipe buried beneath a shallow layer of earth using a wavelet-based technique.
 

8. "Development and validation for in situ asphalt mixture density prediction models",
Volume 44, Issue 4, July 2011, Pages 369-375
Zhen Leng, Imad L. Al-Qadi, Samer Lahouar

Leng et al. (2011) reported the model validation for in situ estimation of asphalt density. GPR data and cores were obtained and evaluated for five asphalt mixtures in a full-scale test site
.

9. "Deflection measurement on vibrating stay cables by non-contact microwave interferometer",
Volume 43, Issue 3, April 2010, Pages 231-240
Carmelo Gentile

Gentile (2010) applied microwave interferometry to the dynamic measurements of bridge cables. The natural frequencies identified from radar data were in agreement with those obtained from conventional accelerators.

The quest will never end for searching effective NDT/NDE techniques for assessing the structure integrity of civil infrastructures. Sharing existing knowledge on NDT/NDE techniques and applications would almost certainly help engineering professionals better prepared for whatever challenges come next. It is hoped that comments and discussions coming from the readers regarding the selected articles will further stimulate the public awareness of the role of NDT/NDE.

There are of course many other NDT&E Internationalarticles also exist that might have been included in this Virtual Special Issue. Perhaps at a later time, these and other articles can be considered for a future VSI on civil structure NDE.

Chih-Hung Chiang
Professor, Department of Construction Engineering and Center for NDT
Chaoyang University of Technology

 
ndt-and-e-international
 
 
Data Protection Notice:

This News from our Journals - Special Issues e-mail has been sent to kkurtis@ce.gatech.edu from Elsevier Science & Technology Journals, Elsevier Limited, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, registered in England with registered number 1982084. To ensure delivery to your inbox (not bulk or junk folders), please click here to add our address to your safe senders list.

You are receiving this e-mail because you are a registered user of an Elsevier on-line product, having consented to receive information about related products and services, and in the belief that it is of interest to you. If you no longer wish to receive communications of this type from us, you can visit this page to unsubscribe. Please visit the Elsevier Science & Technology Journals Preference Center to manage your communication preferences with us.

For all enquiries, problems or suggestions regarding this service, please contact: stjnlsemarketing@elsevier.com.

Copyright © 2014 Elsevier Limited. All rights reserved. | Elsevier Website Privacy Policy