Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Maintenance Practices for Chloride-Induced Corrosion in Reinforced-Concrete Bridge-Pier Columns
Corrosion of reinforcement due to chloride-ion contamination in reinforced concrete (RC) bridge structures is one of the major deterioration distresses in highway bridges of the United States. The deterioration process starts with minor cracks and spalls, causing loss of concrete cover. The process continues to cause damage to large surface areas along with significant loss in reinforcement, causing structural distresses. To preserve and correct RC bridge structures constructed in a chloride-laden environment, a series of maintenance, repair, and rehabilitation (MR&R) works could be performed. This study investigated chloride-induced corrosion damage as well as the maintenance practices regarding the reinforced-concrete bridge-pier columns. A questionnaire survey was conducted with 50 state departments of transportation (DOTs) to collect (1) preventive maintenance and corrective maintenance practices; and (2) information related to the durability and effectiveness of the repairs. Additionally, the study investigated the effectiveness of using externally bonded fiber-reinforced-polymer (FRP) composites in corrosion repair of bridge-pier columns, an approach widely practiced among the departments of transportation. This paper presents the profile to obtain a corrosion-damage using repair criteria for pier columns exposed to various environmental conditions. This profile could be useful for life-cycle cost analysis of maintenance and repair activities.
Maintenance Practices for Chloride-Induced Corrosion in Reinforced-Concrete Bridge-Pier Columns
Corrosion of reinforcement due to chloride-ion contamination in reinforced concrete (RC) bridge structures is one of the major deterioration distresses in highway bridges of the United States. The deterioration process starts with minor cracks and spalls, causing loss of concrete cover. The process continues to cause damage to large surface areas along with significant loss in reinforcement, causing structural distresses. To preserve and correct RC bridge structures constructed in a chloride-laden environment, a series of maintenance, repair, and rehabilitation (MR&R) works could be performed. This study investigated chloride-induced corrosion damage as well as the maintenance practices regarding the reinforced-concrete bridge-pier columns. A questionnaire survey was conducted with 50 state departments of transportation (DOTs) to collect (1) preventive maintenance and corrective maintenance practices; and (2) information related to the durability and effectiveness of the repairs. Additionally, the study investigated the effectiveness of using externally bonded fiber-reinforced-polymer (FRP) composites in corrosion repair of bridge-pier columns, an approach widely practiced among the departments of transportation. This paper presents the profile to obtain a corrosion-damage using repair criteria for pier columns exposed to various environmental conditions. This profile could be useful for life-cycle cost analysis of maintenance and repair activities.
Maintenance Practices for Chloride-Induced Corrosion in Reinforced-Concrete Bridge-Pier Columns
Shrestha, Pramen P. (Autor:in) / Dhakal, Dinesh (Autor:in)
Construction Research Congress 2018 ; 2018 ; New Orleans, Louisiana
Construction Research Congress 2018 ; 281-290
29.03.2018
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Confinement of Rectangular Reinforced Concrete Bridge Columns and Pier Walls
| British Library Conference Proceedings | 1996
Chloride-induced corrosion of reinforced concrete bridge decks
| Tema Archiv | 2002
A tall reinforced concrete bridge pier
Engineering Index Backfile | 1910