Long-term Effects of Cathodic Protection on Prestressed Concrete Bridge Components PDF Download
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Author:
Publisher:
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Category : Concrete bridges
Languages : en
Pages : 84
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Book Description
While cathodic protection effectively reduces or stops ongoing corrosion of reinforcing steel in concrete, applicability of this technology to prestressed members has been limited because of concerns regarding possible bond loss and hydrogen embrittlement. Within this context, the present research was intended as a comprehensive, multifaceted undertaking to elevate the understanding of prestressed concrete cathodic protection to the same level as for reinforced concrete. The program involved four components: (1) constant extension rate testing (CERT) of precorroded tendon wires, (2) cathodic overprotection of precorroded, pretensioned beams with evaluation for hydrogen embrittlement susceptibility, (3) concrete block pull-out tests to determine any effect of cathodic protection on the tendon-to-concrete bond, and (4) evaluation of a commercially available remote monitoring and control hardware and software system for application to prestressed concrete cathodic protection.
Author:
Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 84
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Book Description
While cathodic protection effectively reduces or stops ongoing corrosion of reinforcing steel in concrete, applicability of this technology to prestressed members has been limited because of concerns regarding possible bond loss and hydrogen embrittlement. Within this context, the present research was intended as a comprehensive, multifaceted undertaking to elevate the understanding of prestressed concrete cathodic protection to the same level as for reinforced concrete. The program involved four components: (1) constant extension rate testing (CERT) of precorroded tendon wires, (2) cathodic overprotection of precorroded, pretensioned beams with evaluation for hydrogen embrittlement susceptibility, (3) concrete block pull-out tests to determine any effect of cathodic protection on the tendon-to-concrete bond, and (4) evaluation of a commercially available remote monitoring and control hardware and software system for application to prestressed concrete cathodic protection.
Author:
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Category :
Languages : en
Pages : 168
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Author:
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ISBN:
Category :
Languages : en
Pages : 174
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Author:
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ISBN:
Category :
Languages : en
Pages : 148
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Author:
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Category :
Languages : en
Pages : 108
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Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations
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Category : Political Science
Languages : en
Pages : 1152
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Author:
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ISBN:
Category : Government publications
Languages : en
Pages : 892
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Author:
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Category : Highway engineering
Languages : en
Pages : 148
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Author: M. Funuhashi
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ISBN:
Category : Concrete bridges
Languages : en
Pages : 138
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Book Description
This is the final report in a study that evaluated the feasibility of using cathodic protection on prestressed concrete bridge members. Four pretensioned beams were constructed. In addition, two post-tensioned slabs were constructed to evaluate the ability of cathodic current to provide corrosion protection to anchorages and tendons encased in metal or plastic conduits. Cathodic protection currents were supplied by IR drop-free potential controlled rectifiers. Later in the study, constant-current power supplies were utilized.
Author: United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations
Publisher:
ISBN:
Category : United States
Languages : en
Pages : 1878
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Book Description
