Optimization of Advanced Cementitious Material for Bridge Deck Overlays and Upgrade, Including Shotcrete

Project Details
STATE

FHWA

SOURCE

TRID

START DATE

06/01/19

END DATE

09/30/20

RESEARCHERS

Islam Mantawy

SPONSORS

USDOT

KEYWORDS

Bridge decks, cement, Literature reviews, Mathematical models, Optimization, Overlays (Pavements), Rehabilitation (Maintenance), Shotcrete, Ultra high performance concrete

Project description

Deterioration of bridge decks is a major issue for bridge owners. The need for cost-effective and durable rehabilitation methods has been documented by many researchers. The primary causes of deck deterioration include vehicle traffic, environmental effects (i.e. freeze-thaw, salt spray), and maintenance practices (snow plows, de-icing chemical treatments). Deterioration is featured by delamination, cracking, corrosion of reinforcing steel, abrasion, scaling, and other mechanisms. Ultra-High strength concrete (UHPC) overlays are gaining in popularity as a rehabilitation material due to the high compressive strength, higher tensile capacity compared to normal strength concrete, low permeability, and low shrinkage.
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