00978429

Component

https://doi.org/10.3141/1866-10

http://scholar.google.com...evan&publication_year=2004

Of all the components that compose a highway bridge, the bridge deck usually deteriorates the most quickly and requires the most maintenance and repair because of its exposure to detrimental conditions. Several preventive maintenance techniques are available to retard bridge deck deterioration and thus prolong service lives. Of these techniques, types of bridge deck overlays are investigated. As preventive maintenance, an overlay provides a protective layer between the bridge deck and the detrimental conditions that promote deterioration. In general, this protection enhances the material properties of the overlay, which may include low permeability and resistance to chemical attack as well as added thickness. The overlay procedures used for bridge decks in Tennessee are investigated from information about overlay types and their usage obtained through several sources, including interviews with Tennessee Department of Transportation personnel who are experienced in bridge maintenance. Four types are identified: asphalt, reinforced portland cement concrete, nonreinforced polymer-modified concrete, and thin bonded overlays. Each overlay is described and typical applications, bridge deck preparation, general construction techniques, special considerations, expected service lives, and average costs are discussed. Expected service lives ranged from 15 to more than 30 years, and average costs ranged from $30 to more than $100 per square yard. All overlay types are useful and appropriate under different situations.

This paper appears in Transportation Research Record No. 1866, Maintenance and Management of Pavement and Structures.

00978419

English

p. 79-84

2004

Transportation Research Record

0309094607

Figures (5) ; References (8) ; Tables (1)

Bituminous overlays; Bridge decks; Concrete overlays; Construction; Costs; Overlays (Pavements); Polymer concrete; Preventive maintenance; Service life; Surface preparation

Thin bonded overlays

Tennessee

Bridges and other structures; Construction; Design; Finance; Highways; Maintenance and Preservation; I24: Design of Bridges and Retaining Walls; I61: Equipment and Maintenance Methods

TRIS, TRB, ATRI

Sep 9 2004 12:00AM

• ANALYSIS OF PAST NATIONAL BRIDGE INVENTORY RATINGS FOR PREDICTING BRIDGE SYSTEM PRESERVATION NEEDS
• BRIDGE DECK MANAGEMENT SYSTEM WITH INTEGRATED LIFE-CYCLE COST OPTIMIZATION
• BRIDGE LIFE-CYCLE COSTING IN INTEGRATED ENVIRONMENT OF DESIGN, RATING, AND MANAGEMENT
• DETERMINING LIFE EXPECTANCY OF PREVENTIVE MAINTENANCE FIXES FOR ASPHALT-SURFACED PAVEMENTS
• DEVELOPMENT OF PREVENTIVE MAINTENANCE DECISION TREES BASED ON COST-EFFECTIVENESS ANALYSIS: AN ONTARIO CASE STUDY
• INVENTORY SYSTEM FOR RETAINING WALLS AND SOUND BARRIERS
• JOINT SEALANT AND STRUCTURAL PERFORMANCE AT THE OHIO ROUTE 50 TEST PAVEMENT
• PERFORMANCE EVALUATION SYSTEM FOR MAIN REINFORCED CONCRETE GIRDERS OF EXISTING BRIDGES
• RELATIVE EFFECTS OF SODIUM CHLORIDE AND MAGNESIUM CHLORIDE ON REINFORCED CONCRETE: STATE OF THE ART
• THIN MAINTENANCE SURFACE TREATMENTS: COMPARATIVE STUDY