To protect bridge decks from roadway salt and water penetration, as well as to improve ride quality over the structure, bridge engineers seal the decks with a variety of waterproofing systems. This “overlay” material is most often installed during bridge rehab projects but also installed on new bridges as well.

Mar 6, 2018 · Overlay moves along with the deck. This is a critical step in bonded bridge deck overlay success. Due to the thin overlay and large surface area, plastic/drying shrinkage is problematic. Limited bleed water and rapid evaporation induce cracking, curling, and warping.

Oct 2, 2019 · There are three possible options when an overlay may be applied to bridge deck overlays: An overlay for a new deck; A protective overlay for an existing deck; A structural overlay for an existing deck; Choosing an Overlay For a New Deck. Chlorides from deicing salts are the main cause of bridge deck deterioration.

Many types of bridge decks, including concrete, timber and steel, occur throughout the US and each type of bridge deck has specific types of rehabilitation methods associated with it that are most suitable for existing deck conditions.

Endurablend is the highest-performing and most cost-effective polymer concrete polymer overlay solution for bridge decks. Learn more here.

Why Overlays on Bridge Decks? What is it? What does it do? Where to use it? ASTM D4263 is a proper method. Using a plastic sheet (approximately 18” by 18”) left taped in place for at least 2 hr. Make sure the course has gained sufficient strength. When prodded or pushed with a tool like a screwdriver, the embedded aggregate shouldn't move at all.

performance objectives of bridge deck overlays include protecting the underlying deck and reinforcement from contaminates, providing additional strength and stiffness to the deck system, and extending the service life of the overall structure. One emerging solution for bridge deck rehabilitation is thin, bonded ultra-high

SikaPronto-500 PPC is a polyester-based concrete overlay and patching system. Since 2019, SikaPronto-500 PPC has joined the ranks of the most robust product portfolio in the industry for durable bridge deck repair systems.

Discover the crucial role of bridge deck overlays in extending the lifespan of bridges while enhancing safety and performance. This article explores various overlay materials, including asphalt and concrete, and their benefits, such as cost savings and improved durability.

Applying thin ultra-high-performance concrete overlays over normal concrete bridge decks can improve bridge deck durability by increasing the cracking resistance and providing protection against moisture penetration and chloride ingress.

Kwik Bond PPC 1121 polyester polymer concrete bridge deck overlays provide a 30-year solution, unequaled preservation, and a two-hour traffic return in a variety of conditions.

Epoxies have been in use in the US for over 40 years as concrete bridge deck overlays. To seal cracks of the bridge deck. To prevent water and chloride ions from salt to penetrate the concrete. To protect corrosion in the deck’s reinforcing steel due to moisture intrusion.

The PPC overlay system for bridge decks is a protective layer from polyester-styrene resin, and a special blend of aggregate, applied on the concrete surface after a required pre-treatment of a high molecular weight methyl-methacrylate is applied. This overlay serves several purposes: Waterproofing, durability,

Nov 1, 2020 · Polymer bridge deck overlays are easy to specify, readily available, and have ample history to show their successes. When specified in the right conditions for the chosen style of overlay, they can achieve their anticipated service life.

Discover the transformative power of polymer bridge deck overlays in enhancing durability and extending the lifespan of bridges by up to 30%. This article likens overlays to Spanx for bridges, showcasing their ability to protect against moisture, UV rays, and corrosion.

Dec 14, 2022 · The general design considerations and constraints for placing a bridge deck overlay can be categorized into major topics according to the purpose and the constructability of the proposed bituminous concrete pavement structure, which are as follows: (1) Protecting the waterproofing membrane over the bridge deck

Apr 19, 2024 · What is a bridge deck overlay? A bridge deck overlay is a thin layer of material such as asphalt concrete, which is applied over the existing concrete substrate to extend the life of the bridge deck. Overlays can serve as preventative protection or …

Sep 12, 2017 · Vehicular traffic will generate wear and rutting on a concrete bridge deck over the life of a bridge. One option to correct excessive wear is to add a Hot Mix Asphalt (HMA) overlay on top of the existing concrete deck. This type of overlay requires less construction time and is

Bride Deck Overlay - FasTrac Hybrid Polymer Concrete is the ultimate solution for bridge deck overlays and road resurfacing.

Jan 9, 2020 · Guidelines For Selection of Bridge Deck Overlays, Sealers and Treatments ‐ Scope • Agency Survey and Guidelines • Review Literature • Results: • Deck Characterization • Primary Repair Category Selection • Selection of Repair Options

2 days ago · Infrasense conducted aerial infrared thermography (aerial IR) surveys on 227 bridge decks along various corridors throughout Indiana.The evaluations resulted in condition quantities, including ...