United States Department of Transportation
i
Petrotac bridge deck waterproofing membrane on Five Mile Creek Bridge : first interim report.
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1986-09-01
[PDF-69.78 KB]
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Abstract:During the 1970's, the Oregon State Highway Division was involved in a Federally funded experimental program to evaluate various waterproofing membrane systems for bridge decks. Through this program, a list of approved products and/or systems was developed. Since the completion of that study, several of these products have been discontinued and replaced with new, redesigned products. While some of the original products are still available, it was felt the newer products, developed from current technology, should be evaluated, as these are purported to be more durable and often less expensive.
On October 17 and 18, 1985, one of these new bridge deck waterproofing systems, Bridge Deck Grade (BDG) Petrotac, was installed on the deck of Five Mile Creek Bridge. Manufactured by Phillips Fibers, Petrotac is an impermeable, nonwoven fabric membrane used to protect a bridge's reinforcing steel from moisture and harmful chloriges. BDG Petrotac is manufactured in 36'' wide strips, with a self-sealing edge to insure full closure when strips are overlapped.
A research program was implemented to inspect and evaluate this membrane over a period of two and a half years. This report documents the installation of the Petrotac system, and the results of the first evaluation.
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