Frequently Asked Questions About Exodermic® Bridge Decks

Why use an Exodermic® bridge deck?

An Exodermic® bridge deck typically weighs 35% to 50% less than a reinforced concrete deck that would be specified for the same span. Reducing the dead load on a structure can often mean increasing the live load rating. The efficient use of materials in an Exodermic® bridge deck means the deck can be much lighter without sacrificing strength, stiffness, ride quality, or expected life.

Precast Exodermic® bridge decks can be erected during a short, nighttime work window, allowing a bridge to be kept fully open to traffic during the busy daytime hours.

Cast-in-place Exodermic® bridge decks also permit considerable savings in construction time – the steel grid panels come to the site essentially ready for concrete. The steel grid component of an Exodermic® bridge deck acts as a pre-cut, pre-formed, stay-in-place form. Panels are quickly placed, and layout of the single mat of rebar is simple and straightforward, without the need for chairs or other aids in most cases. Cantilevered decks can be formed without temporary supports.

An Exodermic® bridge deck is easily maintained with standard materials and techniques, since the top portion of an Exodermic® bridge deck is essentially the same as the top half of a standard reinforced concrete deck. If desired, any overlay compatible with concrete can be used, including latex modified concrete, polymer concrete, microsilica concrete, or a membrane with asphaltic concrete overlay.

Contact the DS Brown Company at 419-257-3561 about the Exodermic® bridge deck system.