Journal ArticleDOI
Acoustic Emission Monitoring of Reinforced Concrete under Accelerated Corrosion
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TLDR
In this article, an accelerated corrosion and continuous acoustic emission test setup is presented, providing relevant information on the characteristics of the corrosion circuit, continuous measurement procedure, selection of AE sensors, and AE parameter setting for data acquisition.Abstract:
The development of techniques capable of evaluating the deterioration of reinforced concrete structures is instrumental to the advancement of structural health monitoring (SHM) techniques and service life estimate methodologies for constructed facilities. One of the main causes of degradation is the corrosion of steel reinforcement. This process can be modeled phenomenologically, whereas laboratory tests aimed at studying durability responses are typically accelerated to provide usable results within a realistic period of time. Numerous nondestructive methods have been recently studied. Acoustic emission (AE) is emerging as a nondestructive tool to detect the onset and progression of deterioration mechanisms associated with concrete cracking. In this paper, an accelerated corrosion and continuous AE monitoring test setup is presented, providing relevant information on the characteristics of the corrosion circuit, continuous measurement procedure, selection of AE sensors, and AE parameter setting for data acquisition. The effectiveness of AE in detecting and characterizing the initiation of the corrosion process is discussed on the basis of results from small-scale, precracked RC specimens that are representative of areas near the clear cover in typical RC members. The main outcome is a new approach of AE data interpretation based on time-driven parameters.read more
Citations
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Journal ArticleDOI
Early Corrosion Detection in Prestressed Concrete Girders Using Acoustic Emission
TL;DR: In this paper, a long-term corrosion test was performed on prestressed T-girders measuring 498m (16ft, 4in) and one control, including one control.
Journal ArticleDOI
Acoustic emission monitoring of early corrosion in prestressed concrete piles
TL;DR: In this paper, acoustic emission (AE) monitoring is used to recognize and classify early corrosion damage in prestressed concrete (PC) piles exposed to saltwater, which is desirable to enable the effective planning and prioritizing of maintenance operations.
Journal ArticleDOI
Classification of alkali–silica reaction damage using acoustic emission: A proof-of-concept study
Marwa Abdelrahman,Mohamed K. ElBatanouny,Paul Ziehl,Jeremiah Fasl,Carl J. Larosche,John Fraczek +5 more
TL;DR: In this paper, an accelerated Alkali-Silica reaction (ASR) test was implemented at the University of South Carolina Structures and Materials Laboratory on twelve specimens with dimensions of 3 × 3 × 11.25in.
Journal ArticleDOI
A review on corrosion detection and protection of existing reinforced concrete (RC) structures
TL;DR: In this article , a comprehensive review on corrosion detection techniques and protection methods for existing reinforced concrete (RC) structures where corrosion has already occurred is presented, with the basic working mechanism and state of the art of each method given.
Journal ArticleDOI
Acoustic emission vis-à-vis electrochemical techniques for corrosion monitoring of reinforced concrete element
TL;DR: In this article, a comparative study of acoustic emission (AE) and electrochemical techniques for an experimental investigation of corrosion of steel embedded in concrete is presented, and the results show two stages of corrosion process and also indicate that, cumulative signal strength can be used as a promising parameter of AE technique to monitor progress of damage in reinforced concrete (RC) due to corrosion.
References
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"building code requirements for structural concrete (aci 318-11) and commentary"
Randall W. Poston,Basile G. Rabbat,Sergio M. Alcocer,Neal S. Anderson,Florian G. Barth,Kenneth B. Bondy,Dean A. Browning,Ned M. Cleland,W. Gene Corley,Charles W. Dolan,Anthony E. Fiorato,Catherine E. French,Robert J. Frosch,Luis E. García,Satyendra Ghosh,Harry A. Gleich,James R. Harris,Terence C. Holland,James O. Jirsa,Dominic J. Kelly,Gary J. Klein,Ronald Klemencic,Cary S. Kopczynski,Colin L. Lobo,Jack P. Moehle,Gustavo J. Parra-Montesinos,Julio A. Ramirez,David M. Rogowsky,David H. Sanders,Guillermo Santana,Thomas C. Schaeffer,Andrew W. Taylor,Eric M. Tolles,James K. Wight,Sharon L. Wood,Loring A. Wyllie,F. Michael Bartlett,Allan P. Bommer,JoAnn P. Browning,Ronald A. Cook,David Darwin,Lisa R. Feldman,Kevin J. Folliard,R. Doug Hooton,Kenneth C. Hover,Steven H. Kosmatka,Michael E. Kreger,Jason J. Krohn,Daniel A. Kuchma,Andres Lepage,LeRoy A. Lutz,Joseph Maffei,Fred Meyer,Denis Mitchell,Theodore A. Mize,Suzanne Dow Nakaki,Theodore L. Neff,Viral B. Patel,Conrad Paulson,Jose A. Pincheira,Mario E. Rodríguez,Bruce W. Russell,M. Saiid Saiidi,Andrea J. Schokker,John F. Stanton,Roberto Stark,John W. Wallace,Mathias Brewer,Luis B. Fargier-Gabaldon,Alberto Giovambattista,Hector D. Hernandez,Angel E. Herrera,Patricio A. Placencia,Oscar M. Ramirez,Fernando Reboucas Stucchi,Fernando Yáñez,John E. Breen,Neil M. Hawkins,James G. MacGregor,Robert F. Mast,Charles G. Salmon +80 more
TL;DR: The Building Code Requirements for Structural Concrete (Code) as mentioned in this paper covers the materials, design, and construction of structural concrete used in buildings and where applicable in nonbuilding structures, including the strength evaluation of existing concrete structures.
Journal ArticleDOI
Cover cracking as a function of bar corrosion: Part I-Experimental test
TL;DR: In this article, some preliminary experiments are reported in which small reinforced beams are artificially corroded by an impressed current, and the amount of current and loss of bar cross-section needed to induce the crack at the surface are monitored, together with the evolution of crack width, by the use of strain gauges applied to the surface of the specimens.
Journal ArticleDOI
Corrosion in cracked and uncracked concrete – influence of crack width, concrete quality and crack reopening
TL;DR: In this paper, the authors investigated the influence of crack width (0·7 mm, 0·4 mm and incipient cracks), binder type (100% CEM I (ordinary Portland cement -OPC) and 50/50 OPC/Corex slag blend), water-to-binder (w/b) ratio ( 0·40 and 0·55) and crack reopening on chloride-induced corrosion in reinforced concrete (RC) specimens with constant cover of 40 mm.
Journal ArticleDOI
Assessing Damage in Corroded Reinforced Concrete Using Acoustic Emission
Dong Jin Yoon,Dong Jin Yoon,Dong Jin Yoon,W. Jason Weiss,W. Jason Weiss,W. Jason Weiss,Surendra P. Shah,Surendra P. Shah,Surendra P. Shah +8 more
TL;DR: In this article, the acoustic emission (AE) behavior of reinforced concrete beams tested under flexural loading was investigated to characterize and identify different sources of damage including microcrack development, localized crack propagation, and debonding of the reinforcing steel.
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