Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete Bridge Protection and Rehabilitation: Chemical and Physical Techniques: Field Validation
Chloride-induced corrosion of the reinforcement steel in concrete is a primary factor in the deterioration of reinforced concrete bridge components. Current repair and rehabilitation methods provide only limited abatement of the corrosion cell, usually when rust-containing chlorides are left in place. New rehabilitation techniques were developed in the laboratory, corrosion inhibitor modified concrete systems. This report covers the field application and short-term corrosion performance of six trial installations of two inhibitor-modified concrete systems. The trial installations were applied to both deck and substructure components in a range of environments. The study showed that the inhibitor-modified concrete systems could be successfully applied by construction and maintenance personnel with a minimum of technical supervision. Both pre- and post-treatment corrosion assessments were performed to estimate the corrosion performance of inhibitor modified concrete systems, including visual inspections, delamination surveys, cover depth surveys, chloride contamination levels, corrosion potential measurements, and corrosion current measurements. Though long term data will be needed in order to make any firm conclusions, preliminary data appears promising for some application techniques. (Copyright (c) 1993 National Academy of Sciences.)
Concrete Bridge Protection and Rehabilitation: Chemical and Physical Techniques: Field Validation
Chloride-induced corrosion of the reinforcement steel in concrete is a primary factor in the deterioration of reinforced concrete bridge components. Current repair and rehabilitation methods provide only limited abatement of the corrosion cell, usually when rust-containing chlorides are left in place. New rehabilitation techniques were developed in the laboratory, corrosion inhibitor modified concrete systems. This report covers the field application and short-term corrosion performance of six trial installations of two inhibitor-modified concrete systems. The trial installations were applied to both deck and substructure components in a range of environments. The study showed that the inhibitor-modified concrete systems could be successfully applied by construction and maintenance personnel with a minimum of technical supervision. Both pre- and post-treatment corrosion assessments were performed to estimate the corrosion performance of inhibitor modified concrete systems, including visual inspections, delamination surveys, cover depth surveys, chloride contamination levels, corrosion potential measurements, and corrosion current measurements. Though long term data will be needed in order to make any firm conclusions, preliminary data appears promising for some application techniques. (Copyright (c) 1993 National Academy of Sciences.)
Concrete Bridge Protection and Rehabilitation: Chemical and Physical Techniques: Field Validation
B. D. Prowell (Autor:in) / R. E. Weyers (Autor:in) / I. L. Al-Qadi (Autor:in)
1993
90 pages
Report
Keine Angabe
Englisch
Construction Equipment, Materials, & Supplies , Highway Engineering , Corrosion & Corrosion Inhibition , Transportation & Traffic Planning , Transportation , Reinforced concrete , Highway bridges , Corrosion inhibition , Bridge maintenance , Bridge decks , Admixtures , Field tests , Chlorides , Coatings , Concrete structures , Maintenance management , Reinforcing steels
Cost Relationships for Concrete Bridge Protection, Repair, and Rehabilitation
| British Library Online Contents | 1995