Potholes and Bridge Deck Corrosion: Hearing Before the Subcommittee on Transportation, Aviation, and Communications of the Committee on Science and Technology, U.S. House of Representatives, Ninety-sixth Congress, First Session, March 19, 1979U.S. Government Printing Office, 1979 - 76 pagini |
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Termeni și expresii frecvente
Allegheny County asphalt Banksville bituminous bridge corrosion bridge deck deterioration CADY cathodic protection cetera Chairman chloride cold mix concrete pavements CONGRE LIBRARY CONGRESS LIBRARY CONGRESS THE LIBRARY Congressman Atkinson construction contaminated bridges cost cracking CRONIN deck problem deicing DICKINSON Director dollars drainage effective effort epoxy equipment evaluation existing bridge decks existing decks Federal Highway Administration FHWA funds George Washington Parkway HARKIN highway agencies industry Iowa joint kind LEATHERS LIBRARY OF CONGRES LIBRARY OF CONGRESS look maintenance methods million MOSES overlay patching materials PennDOT Pennsylvania Pennsylvania DOT Pittsburgh polymer portland cement pothole problem protective systems question reinforcing steel repair replacement research and development research program resurfacing road Salt Institute SANDVIG SCHEFFEY sidewalk SIODLOWSKI solutions statement STOLAROW subcommittee surface talking techniques tests Thank thing Thornburg Bridge tion TOM HARKIN traffic Transportation trying U-car WALGREN
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Pagina 5 - As you probably heard, your entire statement will be made a part of the record. You may proceed in any way you wish.
Pagina 8 - ... by the States. Numerous techniques have been suggested as possibilities for protecting existing bridge decks from further deterioration. These techniques — which are in various stages of development — include asphalt membranes, concrete overlays, internally sealed concrete, deep polymer impregnation, cathodic protection, and electrochemical removal of chlorides. However, very limited data is available on the effectiveness of these potential protective systems.
Pagina 8 - There are bridge decks that contain either no areas, or only small areas where chloride levels are high enough to cause deterioration. If these bridge decks were protected with one of the systems now used for new construction, significant savings could be realized by avoiding more expensive repairs later.
Pagina 8 - Time is important. The sooner these issues can be resolved and applied to existing bridge decks, the fewer the decks that will require complete replacement. A program to protect existing contaminated bridge decks instead of completely replacing them could save billions of dollars.
Pagina 8 - If these bridge decks were protected with one of the systems now used for new construction, significant savings could be realized by avoiding more expensive repairs later. The potential benefit/cost ratio of repairing and (protecting an existing bridge deck...
Pagina 9 - Administration study indicated that, if the 29,000 interstate bridge decks then requiring minor repair were neglected to the extent that they require moderate repair, the current repair cost of about $600 million would increase by an additional $4.4 billion. These estimates are in 1975 dollars.
Pagina 9 - ... costs. For example, a Federal Highway Administration study indicated that, if the 29,000 interstate bridge decks...
Pagina 2 - The purpose of the hearing today is to focus on solutions to what is a chronic and literally life threatening problem in bridge deterioration and potholes.
Pagina 8 - These bridge decks will deteriorate and require premature replacement, unless a means is soon found to halt the deterioration. The question of whether these physically sound, but chloride-contaminated, bridge decks can be protected to achieve their expected 40-year life, has not been resolved by the Federal Highway Administration.
Pagina 4 - GAO report estimated that we will be asking for the need to expend some $5 billion if we cannot maintain the present bridge decks that are in a state of disrepair.