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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.
Showing 1-5 of 61 Abstracts search results
Document:
SP94-39
Date:
July 1, 1987
Author(s):
C. Wohlk
Publication:
Symposium Papers
Volume:
94
Abstract:
In Denmark, all important concrete bridges are waterproofed and asphalt paved. Joints in bridge surfacing are important details as leakage often starts along the edges and the expansion devices. Practice has shown that with a proper sealant, joint leakage is much more apt to occur between the sealant and the joint sides than due to a break in the sealant. A low elastic modulus of the sealant will reduce the tension between the sealant and the joint sides and is consequently an important property. A suitable primer should always be used, and the shape factor of the joint should be restricted to about 1:1. The present Danish specifications for joint sealants and primers are quoted and discussed. Important details of the workmanship are also specified. Measurements of typical movements in bridge surfacings are reported. Research concerning new specifications is presented. An elaborate device for testing the deformation properties of joint sealants at different temperatures down to -20 C has been constructed. It is intended to use the device to study the influence of such characteristics as aging, water, alkali, and joint geometry. It is expected that the investigation will result in new and more relevant specifications and easier control procedures. The research is directed toward bridge joints, but the results are applicable to joints in concrete roads as well.
DOI:
10.14359/1713
SP94-40
P. Dupeuble
Diaphragm walls owing to their method of construction are discontinuous structures. A new technology for the formation of joints between panels has been developed. This new process allows for the construction of diaphragm walls with mechanical and watertight continuity. Within the last 30 years, diaphragm walling has become a construction technique frequently used for the design of major underground works, often in waterbearing grounds, e.g., quay qalls, excavation supporting, and shaft lining.
10.14359/1714
SP94-44
S. Pabst
Elastomeric concrete, when used as a transition medium in the traffic impact area, is a simplistic low-profile concept that vulcanizes permanently to the structural concrete of the bridge deck. This procedure has proven effective in waterproofing the problematic expansion joint areas while providing a unique impact-attenuating transition solution.
10.14359/3419
SP94-48
C. Sander
Sealing pavement joints is necessary to minimize seepage of surface water into the subgrade and to prevent pavement damage. Joint seals for airfield pavements assume an additional level of importance since debris that is harbored in these joints can be injested and may damage aircraft engines. The paper briefly reviews a design procedure that has been used by the U.S. Air Force and includes a typical design example.
10.14359/1643
SP94-45
S. Spells
Certain nonacid curing silicone sealants have been successfully used to seal joints in concrete highways for more than 10 years. The success in highway applications resulted in similar applications for silicones on commercial and military airfields. The u
10.14359/1624
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