Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Evaluation of Thin Epoxy Systems Overlays for Concrete Bridge Decks
Four overlay systems were applied to concrete bridge decks in north Louisiana in May 1985 to evaluate their performance as friction surfaces primarily and also as concrete sealers. Dural Flexolith, Poly-Carb Flexogrid, and Con/Chem Cono/Crete were placed on three separate bridge decks; sand and Dural epoxy were placed on the fourth deck. Friction numbers were measured with the British Portable Tester and the E - 274 Skid Trailer. The sealing characteristics of each system were checked with electrical resistivity measurements. A five-year evaluation determined that Dural Flexolith and basalt aggregate and Poly-Carb Flexogrid (broadcast systems) provided very good friction characteristics. They were also crack resistant and remained bonded to the concrete. The use of sand and Dural epoxy produced a less effective surface for skid resistance, but its use is more intended for low ADT applications. The mortar system (Con/ChemCono/Crete) produced low skid numbers initially but improved slightly over the evaluation period.
Evaluation of Thin Epoxy Systems Overlays for Concrete Bridge Decks
Four overlay systems were applied to concrete bridge decks in north Louisiana in May 1985 to evaluate their performance as friction surfaces primarily and also as concrete sealers. Dural Flexolith, Poly-Carb Flexogrid, and Con/Chem Cono/Crete were placed on three separate bridge decks; sand and Dural epoxy were placed on the fourth deck. Friction numbers were measured with the British Portable Tester and the E - 274 Skid Trailer. The sealing characteristics of each system were checked with electrical resistivity measurements. A five-year evaluation determined that Dural Flexolith and basalt aggregate and Poly-Carb Flexogrid (broadcast systems) provided very good friction characteristics. They were also crack resistant and remained bonded to the concrete. The use of sand and Dural epoxy produced a less effective surface for skid resistance, but its use is more intended for low ADT applications. The mortar system (Con/ChemCono/Crete) produced low skid numbers initially but improved slightly over the evaluation period.
Evaluation of Thin Epoxy Systems Overlays for Concrete Bridge Decks
M. Rasoulian (Autor:in) / N. Rabalais (Autor:in)
1991
60 pages
Report
Keine Angabe
Englisch
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