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Burlington Northern Railroad Overcrossing Bridge, Microsilica Modified Concrete Overlay. Bridge No. 5/718W. Post Construction Report
Washington State has approximately 700 bridge decks that may require a latex modified concrete (LMC) overlay in the next 12 to 15 years. The microsilica concrete overlay is seen as a possible alternative to the increasingly expensive latex modified concrete. A microsilica modified concrete overlay was placed on Bridge 5/718W in Skagit County. The bridge is a concrete box girder structure with 8,100 square feet of deck area. The ADT on this bridge is 9,150 vehicles per day. The minimum overlay thickness was 1 1/2 inches. Superplasticizer was added to the mix. The concrete was mixed in a conventional batch plant with the technical representative from the microsilica supplier providing assistance. The microsilica modified concrete overlay was finished and cured as prescribed by WSDOT's specification for LMC overlays.
Burlington Northern Railroad Overcrossing Bridge, Microsilica Modified Concrete Overlay. Bridge No. 5/718W. Post Construction Report
Washington State has approximately 700 bridge decks that may require a latex modified concrete (LMC) overlay in the next 12 to 15 years. The microsilica concrete overlay is seen as a possible alternative to the increasingly expensive latex modified concrete. A microsilica modified concrete overlay was placed on Bridge 5/718W in Skagit County. The bridge is a concrete box girder structure with 8,100 square feet of deck area. The ADT on this bridge is 9,150 vehicles per day. The minimum overlay thickness was 1 1/2 inches. Superplasticizer was added to the mix. The concrete was mixed in a conventional batch plant with the technical representative from the microsilica supplier providing assistance. The microsilica modified concrete overlay was finished and cured as prescribed by WSDOT's specification for LMC overlays.
Burlington Northern Railroad Overcrossing Bridge, Microsilica Modified Concrete Overlay. Bridge No. 5/718W. Post Construction Report
T. H. Roper (author) / E. H. Henley (author)
1989
30 pages
Report
No indication
English
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