Title:
Use of Conventional and High-Performance Steel-Fiber
Reinforced Concrete for Bridge Deck Overlays
Author(s):
Neven Krstulovic-Opara, Abdol R. Haghayeghi, Mohammad Haidar, and Paul D. Krauss
Publication:
Materials Journal
Volume:
92
Issue:
6
Appears on pages(s):
669-677
Keywords:
bridge decks; durability; fiber reinforced concretes; high-performance
concretes; overlay; repairs.
DOI:
10.14359/9787
Date:
11/1/1995
Abstract:
Cost-effective long-term solutions for the current problem of the deteriorated national infrastructure are critical for the future economic growth and competitiveness of the U.S. economy in the 21st century. One of the most important issues is the repair and retrofitting of concrete bridge decks. Deck overlays are commonly used for recovering and improving the serviceability and durability of bridge decks. This paper presents cement-based composites that promise to provide a long-term solution to bridge deck problems: high-perjormance (steel) jber reinforced concretes (HPFRCs), and improved conventional steel-fiber reinforced concretes (FRCs). Improved FRCs, and in particular revolutionary new HPFRCs, exhibit superior strength, toughness, fatigue and impact resistance, crack control, impermeability, and durability over conventional cement composites. Thus, they are ideally suited for the construction of durable and cost-effective thin-bonded bridge deck overlays. This paper reviews successful pilot projects and presents recommendations for the design and construction of these high-perjormance overlay systems.