Eriksson, Merv ; Wheeler, Homer ; Kosmalski, Sharon . 2003. Asphalt Paving of Treated Timber Bridge Decks. 0371 2809P. Missoula, MT: U.S. Department of Agriculture, Forest Service, Missoula Technology and Development Center. 30 p.
Provides guidance for designing timber decks and long-lasting asphalt paving systems. More treated timber bridges are being constructed in the United States now that the efficiencies of these bridges have been recognized. Asphalt pavement wearing surfaces applied to these bridges can enhance their long-term performance and reduce deck abrasion. Problems associated with the asphalt surfaces are due to deck flexibility and shrinkage, excess preservative treatment and asphalt, and incompatibility between the treatment and the paving system. Improper treatment and construction can contribute to problems. Proper timber treatment and correct bridge and pavement design will ensure economical, long-term pavement performance, while minimizing environmental problems. [slightly revised November 2012]
Keywords: adhesion, best management practices, cleaning, deflection, design, glued laminated, nail laminated, paving membranes, preservatives, shrinkage, stress laminated, wood
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