Author: David B. WoodhamPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 92
Book Description
Bridge Deck Repair Demonstration
Author: David B. WoodhamPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 92
Book Description
Bridge Deck Repair & Maintenance
Author: Federal Highway Administration, Demonstration Projects DivisionPublisher:
ISBN:
Category : Bridges
Languages : en
Pages :
Book Description
Evaluation of Bridge Deck Repair and Protective Systems
Author: Herbert N. SwansonPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 50
Book Description
Bridge Deck Repair and Maintenance, San Diego, California
Author: Rehabilitation of Maloney Circle Bridge, Vicksburg National Military Park, Mississippi
Author: Darrell E. MaretPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 60
Book Description
Rapid Bridge Deck Replacement
Author: Roberto Alejandro OseguedaPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 88
Book Description
This report describes a full-size field demonstration of a rapid bridge deck replacement concept put forward several years ago. The concept was to utilize a sand mortar made with a rapid setting epoxy to provide the shear tie between precast concrete deck panels and existing steel stringer beams. The demonstration site was a 50 ft simple span that serves as part of the SPUR 326 overpass over the AT & SF railroad tracks in downtown Lubbock, Texas. The demonstration bridge is one of two identical bridges, side-by-side; the other was redecked using a conventional poured-in-place technique. Eight precast panels, each 6 ft 3 in. x 45 ft x 8 in., were used to form the experimental deck. Each panel was cast with blockouts (holes) positioned directly over the supporting steel beams. When the original concrete deck was removed, the steel shear studs were cut away leaving the top of the flanges of the steel beams clean and flat. The precast panels were then positioned atop of the steel in an operation lasting less than 5 hours, the new steel studs were welded into place through the blockouts in about 4 hours, and then the panels were epoxied into place in less than 2 full working days.
Rapid Replacement of Bridge Decks
Author: Maher K. TadrosPublisher: Transportation Research Board
ISBN: 9780309062602
Category : Technology & Engineering
Languages : en
Pages : 64
Book Description
Technologies for Improving the Evaluation and Repair of Concrete Bridge Decks
Author: Bridge Deck Repair and Protective Systems
Author: Herbert N. SwansonPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 60
Book Description
Bridge Deck Repair Techniques
Author: Steve PowersPublisher:
ISBN:
Category : Bridges
Languages : en
Pages : 140
Book Description
The purpose of this project was to analyze four bridge decks in the Fairbanks area that required repairs due to corrosion and to make the necessary repairs. The Illinois Street, Minnie Street, and Wendell Street bridges were repaired during the 1982 construction season, and the Cushman Street bridge will be refurbished this summer (1983). Two repair techniques were utilized for these bridge decks. The Illinois Street and Minnie Street bridges were overlaid with latex-modified concrete. The Cushman Street bridge will also be overlaid with latex-modified concrete. The Wendell Street deck, in addition to being overlaid with latex-modified concrete, has a cathodic protection system. Both methods required the removal of all delaminated concrete. The corroded reinforcing steel rust was either cleaned or replaced. The latex-modified concrete overlay acts as a membrane that should reduce further intrusion of chloride from deicing salts and water, thereby slowing down the corrosion process. The cathodic protection system being used in conjunction with the latex-modified concrete overlay is designed to halt corrosion. The system functions by supplying direct current in the proper direction so that the corroding anodes on the steel are prevented from discharging ions, thus stopping corrosion. The merits of each technique are being evaluated with regard to cost effectiveness and ability to halt corrosion.