The Experts below are selected from a list of 15519 Experts worldwide ranked by ideXlab platform
Benjamin Worel - One of the best experts on this subject based on the ideXlab platform.
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detection of subsurface joint deterioration blind test comparison of ultrasound array technology with conventional Nondestructive Methods
Transportation Research Record, 2013Co-Authors: Kyle Hoegh, Lev Khazanovich, Benjamin WorelAbstract:Results of a blind test evaluation of various Nondestructive testing techniques, including well-established Methods such as chain dragging, rod sounding, and ground-penetrating radar, compared with an emerging ultrasonic array technology for determining the extent of concrete joint deterioration, are presented. Nondestructive testing at two concrete pavement joints at the Minnesota Road Research Facility was performed, and the results were independently evaluated and submitted to the Minnesota Department of Transportation. Significant discrepancies in subsurface deterioration assessments were observed between these techniques. Forensic evaluation (trenching and coring) was used to resolve the discrepancies in test results. It was concluded that the ultrasound array analysis was the only method that could accurately determine the horizontal extent of the deterioration otherwise undetected by the other available Nondestructive evaluation Methods. Additionally, ultrasonic tomography analysis was able to dete...
Kyle Hoegh - One of the best experts on this subject based on the ideXlab platform.
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detection of subsurface joint deterioration blind test comparison of ultrasound array technology with conventional Nondestructive Methods
Transportation Research Record, 2013Co-Authors: Kyle Hoegh, Lev Khazanovich, Benjamin WorelAbstract:Results of a blind test evaluation of various Nondestructive testing techniques, including well-established Methods such as chain dragging, rod sounding, and ground-penetrating radar, compared with an emerging ultrasonic array technology for determining the extent of concrete joint deterioration, are presented. Nondestructive testing at two concrete pavement joints at the Minnesota Road Research Facility was performed, and the results were independently evaluated and submitted to the Minnesota Department of Transportation. Significant discrepancies in subsurface deterioration assessments were observed between these techniques. Forensic evaluation (trenching and coring) was used to resolve the discrepancies in test results. It was concluded that the ultrasound array analysis was the only method that could accurately determine the horizontal extent of the deterioration otherwise undetected by the other available Nondestructive evaluation Methods. Additionally, ultrasonic tomography analysis was able to dete...
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subsurface joint deterioration detection a mnroad blind test comparison of ultrasound array technology with conventional Nondestructive Methods
2013Co-Authors: Kyle Hoegh, Lev KhazanovichAbstract:This paper presents the results of a blind test evaluation of various Nondestructive testing techniques including well established Methods such as chain dragging, rod sounding, and GPR as compared to an emerging ultrasonic array technology in determining the extent of the concrete joint deterioration. Nondestructive testing at two concrete pavement joints at MnROAD was performed and the results were independently evaluated and submitted to MnDOT. Significant discrepancies in subsurface deterioration assessments were observed among these techniques. Forensic evaluation (trenching and coring) were utilized to resolve the discrepancies in test results. It was concluded that the ultrasound array analysis was the only method able to accurately determine the horizontal extent of the deterioration otherwise undetected by the other available Nondestructive evaluation Methods. Additionally, ultrasonic tomography analysis was able to determine the depth of the deterioration. This makes this emerging technology an attractive alternative to traditional NDT Methods for concrete pavement joint assessment. TRB 2013 Annual Meeting Paper revised from original submittal. Hoegh, Khazanovich, Worel, and Yu
Lev Khazanovich - One of the best experts on this subject based on the ideXlab platform.
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detection of subsurface joint deterioration blind test comparison of ultrasound array technology with conventional Nondestructive Methods
Transportation Research Record, 2013Co-Authors: Kyle Hoegh, Lev Khazanovich, Benjamin WorelAbstract:Results of a blind test evaluation of various Nondestructive testing techniques, including well-established Methods such as chain dragging, rod sounding, and ground-penetrating radar, compared with an emerging ultrasonic array technology for determining the extent of concrete joint deterioration, are presented. Nondestructive testing at two concrete pavement joints at the Minnesota Road Research Facility was performed, and the results were independently evaluated and submitted to the Minnesota Department of Transportation. Significant discrepancies in subsurface deterioration assessments were observed between these techniques. Forensic evaluation (trenching and coring) was used to resolve the discrepancies in test results. It was concluded that the ultrasound array analysis was the only method that could accurately determine the horizontal extent of the deterioration otherwise undetected by the other available Nondestructive evaluation Methods. Additionally, ultrasonic tomography analysis was able to dete...
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subsurface joint deterioration detection a mnroad blind test comparison of ultrasound array technology with conventional Nondestructive Methods
2013Co-Authors: Kyle Hoegh, Lev KhazanovichAbstract:This paper presents the results of a blind test evaluation of various Nondestructive testing techniques including well established Methods such as chain dragging, rod sounding, and GPR as compared to an emerging ultrasonic array technology in determining the extent of the concrete joint deterioration. Nondestructive testing at two concrete pavement joints at MnROAD was performed and the results were independently evaluated and submitted to MnDOT. Significant discrepancies in subsurface deterioration assessments were observed among these techniques. Forensic evaluation (trenching and coring) were utilized to resolve the discrepancies in test results. It was concluded that the ultrasound array analysis was the only method able to accurately determine the horizontal extent of the deterioration otherwise undetected by the other available Nondestructive evaluation Methods. Additionally, ultrasonic tomography analysis was able to determine the depth of the deterioration. This makes this emerging technology an attractive alternative to traditional NDT Methods for concrete pavement joint assessment. TRB 2013 Annual Meeting Paper revised from original submittal. Hoegh, Khazanovich, Worel, and Yu
Sung Woo Shin - One of the best experts on this subject based on the ideXlab platform.
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Principles and Applications of Ultrasonic-Based Nondestructive Methods for Self-Healing in Cementitious Materials
Materials, 2017Co-Authors: Sung Woo Shin, Myoungsu ShinAbstract:Recently, self-healing technologies have emerged as a promising approach to extend the service life of social infrastructure in the field of concrete construction. However, current evaluations of the self-healing technologies developed for cementitious materials are mostly limited to lab-scale experiments to inspect changes in surface crack width (by optical microscopy) and permeability. Furthermore, there is a universal lack of unified test Methods to assess the effectiveness of self-healing technologies. Particularly, with respect to the self-healing of concrete applied in actual construction, Nondestructive test Methods are required to avoid interrupting the use of the structures under evaluation. This paper presents a review of all existing research on the principles of ultrasonic test Methods and case studies pertaining to self-healing concrete. The main objective of the study is to examine the applicability and limitation of various ultrasonic test Methods in assessing the self-healing performance. Finally, future directions on the development of reliable assessment Methods for self-healing cementitious materials are suggested.
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application of electro mechanical impedance sensing technique for online monitoring of strength development in concrete using smart pzt patches
Construction and Building Materials, 2009Co-Authors: Sung Woo ShinAbstract:Abstract Electro-mechanical impedance (EMI) sensing technique utilizing smart piezoelectric materials has emerged as a potential tool for the implementation of an online monitoring system for structural health monitoring. Many Nondestructive Methods for strength gain monitoring seem to have limited capabilities in monitoring of the strength gain in a continuous manner. In this study, the feasibility of the EMI sensing technique for the online strength gain monitoring of early-age concrete is investigated. The experimental study is conducted on the piezoelectric patch instrumented concrete specimen. It is found that the EMI signature is very sensitive to the strength gain in early age concrete.
Shyam N. Jha - One of the best experts on this subject based on the ideXlab platform.
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Nondestructive Methods for quality evaluation of livestock products
Journal of Food Science and Technology, 2012Co-Authors: K. Narsaiah, Shyam N. JhaAbstract:The muscles derived from livestock are highly perishable. Rapid and Nondestructive Methods are essential for quality assurance of such products. Potential Nondestructive Methods, which can supplement or replace many of traditional time consuming destructive Methods, include colour and computer image analysis, NIR spectroscopy, NMRI, electronic nose, ultrasound, X-ray imaging and biosensors. These Methods are briefly described and the research work involving them for products derived from livestock is reviewed. These Methods will be helpful in rapid screening of large number of samples, monitoring distribution networks, quick product recall and enhance traceability in the value chain of livestock products. With new developments in the areas of basic science related to these Methods, colour, image processing, NIR spectroscopy, biosensors and ultrasonic analysis are expected to be widespread and cost effective for large scale meat quality evaluation in near future.