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This report is an archived publication and may contain dated technical, contact, and link information
Publication Number: FHWA-RD-02-086
Date: August 2006

Chapter 1. Introduction

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This volume of the report describes the investigation and evaluation of silica fume and latex-modified concrete overlays used in bridge deck rehabilitation projects. The overlays were installed as part of the Strategic Highway Research Program (SHRP) Project C-206: Optimization of Highway Concrete Technology—Bridge Deck Overlays, which is detailed in the report issued at the conclusion of that study. Two types of concrete were tested in the overlays, silica fume concrete (SFC) and latex-modified Type III cement concrete (LMC-III). The two different overlay types were chosen for their ability to fill two different needs. The use of the SFC overlay was anticipated for use as a long-term low-permeability overlay, while use of the LMC-III was foreseen as a high early-strength concrete for use when traffic had to be restored after as little as 24 hours. This report summarizes the 5-year study to evaluate the long-term performance of the overlays.

 

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The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT).
The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT). Provide leadership and technology for the delivery of long life pavements that meet our customers needs and are safe, cost effective, and can be effectively maintained. Federal Highway Administration's (FHWA) R&T Web site portal, which provides access to or information about the Agency’s R&T program, projects, partnerships, publications, and results.
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United States Department of Transportation - Federal Highway Administration