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- 2008412340 abstract "The service life of Virginia's concrete bridge decks is generally controlled by chloride-induced corrosion of the reinforcing steel as a result of the application of winter maintenance deicing salts. A chloride corrosion model accounting for the variable input parameters using Monte Carlo resampling was developed. The model was validated using condition surveys from 10 Virginia bridge decks built with bare steel. The influence of changes in the construction specifications of w/c = 0.47 and 0.45 and w/cm = 0.45 and a cover depth increase from 2 to 2.75 inches was determined. Decks built under the specification of w/cm = 0.45 (using slag or fly ash) and a 2.75 inch cover depth have a maintenance free service life of greater than 100 years, regardless of the type of reinforcing steel. Galvanized, MMFX-2, and stainless steel, in order of increasing reliability of a service life of greater than 100 years, will provide a redundant corrosion protection system. Life cycle cost analyses were conducted for polymer concrete and portland cement based overlays as maintenance activities. The most economical alternative is dependent on individual structure conditions. The study developed a model and computer software that can be used to determine the time to first repair and rehabilitation of individual bridge decks taking into account the time for corrosion initiation, time from initiation to cracking, and time for corrosion damage to propagate to a state requiring repair.".
- 2008412340 contributor B11265318.
- 2008412340 contributor B11265319.
- 2008412340 created "2007.".
- 2008412340 date "2007".
- 2008412340 date "2007.".
- 2008412340 dateCopyrighted "2007.".
- 2008412340 description "Final contract report; 7/1/2002-12/10/2007.".
- 2008412340 description "Includes bibliographical references (p. 64-66).".
- 2008412340 description "Performed by Virginia Polytechnic Institute and State University, sponsored by Virginia Department of Transportation 73186".
- 2008412340 description "The service life of Virginia's concrete bridge decks is generally controlled by chloride-induced corrosion of the reinforcing steel as a result of the application of winter maintenance deicing salts. A chloride corrosion model accounting for the variable input parameters using Monte Carlo resampling was developed. The model was validated using condition surveys from 10 Virginia bridge decks built with bare steel. The influence of changes in the construction specifications of w/c = 0.47 and 0.45 and w/cm = 0.45 and a cover depth increase from 2 to 2.75 inches was determined. Decks built under the specification of w/cm = 0.45 (using slag or fly ash) and a 2.75 inch cover depth have a maintenance free service life of greater than 100 years, regardless of the type of reinforcing steel. Galvanized, MMFX-2, and stainless steel, in order of increasing reliability of a service life of greater than 100 years, will provide a redundant corrosion protection system. Life cycle cost analyses were conducted for polymer concrete and portland cement based overlays as maintenance activities. The most economical alternative is dependent on individual structure conditions. The study developed a model and computer software that can be used to determine the time to first repair and rehabilitation of individual bridge decks taking into account the time for corrosion initiation, time from initiation to cracking, and time for corrosion damage to propagate to a state requiring repair.".
- 2008412340 extent "ix, 68 p. :".
- 2008412340 hasFormat "Also available online.".
- 2008412340 identifier viewonline.
- 2008412340 identifier 08-cr4.pdf.
- 2008412340 isFormatOf "Also available online.".
- 2008412340 isPartOf "VTRC (Series) ; 08-CR4.".
- 2008412340 isPartOf "VTRC ; 08-CR4".
- 2008412340 issued "2007".
- 2008412340 issued "2007.".
- 2008412340 language "eng".
- 2008412340 publisher "Charlottesville, Va. : Virginia Transportation Research Council,".
- 2008412340 relation "Also available online.".
- 2008412340 spatial "Virginia.".
- 2008412340 subject "624.2/830288 22".
- 2008412340 subject "Benefit cost analysis trt".
- 2008412340 subject "Bridge decks. trt".
- 2008412340 subject "Concrete bridges Floors Corrosion Virginia.".
- 2008412340 subject "Concrete bridges Floors Evaluation.".
- 2008412340 subject "Concrete bridges Maintenance and repair Virginia.".
- 2008412340 subject "Life cycle costing.".
- 2008412340 subject "Service life. trt".
- 2008412340 subject "TG325.6 .B75 2007".
- 2008412340 title "Bridge deck service life prediction and costs / Gregory Williamson ... [et al.].".
- 2008412340 type "text".