In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
American Concrete Institute
38800 Country Club Dr.
Farmington Hills, MI
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Selection of Bridge Deck joint Seals in Louisiana
Author(s): Joe T. Baker, Richard W. Kinchen, and Norval P. Knapp
Publication: Special Publication
Appears on pages(s): 489-507
Keywords: bridge decks; chloroprene resins; control joints; durability; joint sealers; joints (junctions); mechanical properties; sealing; seepage; specifications .
Abstract:In the decade of the '70s, the Louisiana Department of Transportation and Development began sealing almost all its bridge deck joints to stop leakage and thus prevent structural and aesthetic degeneration of its sub-structures. Research sponsored by the State and Federal Governments revealed that neoprene compression seals out-performed pourable ones in sealing bridge deck joints two inches (five cm) or less in width. Technology then lured the Department towards longer span lengths susceptible to greater thermal- and deflection-related movements. Industry took the hint and responded with an array of metal-reinforced or metal-retained neoprene joint assemblies intended to accommodate bridge movement in a watertight fashion. By 1979 the Department had specified approximately a dozen different models of these proprietary bridge deck joint assemblies, observed both good and bad field performance therefrom, and knew that additional products would yet be marketed. The Department then resolved that a joint state and federal team would be formed to (1) evaluate the sealing properties, rideability, and maintenance requirements of available joint seal systems, (2) develop and maintain a qualified products list for the subject seal systems, and (3) develop and maintain a standard plan listing approved seals, installation procedures, and other necessary notes. This team concept has been implemented, with members representing design through maintenance. Although in its infancy, the idea holds great promise as a clearinghouse for communications and decisions regarding bridge deck joint seal sys terns.
Click here to become an online Journal subscriber