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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:
SP94-45
Date:
July 1, 1987
Author(s):
S. Spells
Publication:
Symposium Papers
Volume:
94
Abstract:
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
DOI:
10.14359/1624
SP94-52
K. Schoenbauer and N. Schaeffer
Despite all of the progress made to date in concrete technology, there is still no reliable means of preventing local voids or cracks in concrete under site conditions. If concrete structures are required to be waterproof, it is always mandatory to provid
10.14359/1625
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
SP94-31
A. Saxena and E. McEwen
A highway bridge pot-bearing system was modeled using nonlinear finite elements to analytically trace the load distribution patterns and failure modes. Material properties for the concrete block supporting the bearing were represented by a modified consti
10.14359/1652
SP94-49
B. Rogers and D. Shelangoskie
Central to the design of the Intermountain Power Project (IPP) mechanical cooling towers was the ability to configure connections between precast concrete members so that large horizontal seismic forces could be transferred between beams and girders and between girders and columns. Complicating the task of connection design were substantial thermal loads and severe environmental conditions. To solve these and related design questions, a testing program was undertaken using «-scale models of certain key joints in the structure. This paper presents a description of the testing program, a brief description of the structural system in which the joints were located, and the results and conclusions of the tests. Principal among the conclusions is the recognition that embedded metal pins used to transfer forces between discrete members must not only be carefully detailed, but they also must accommodate substantial elastic deformation at the joint if failure below acceptable force levels is to be avoided. In the IPP, this was accomplished by the introduction of a confined viscoelastic medium surrounding the pin. This simple addition to the joint configuration increased the force transferred through the connection by a factor of 2.5 to 3 while limiting deformation to acceptable values.
10.14359/3434
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