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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.
Title: Performance of Natural Rubber Bridge Bearing Pads - Current Laboratory Research
Author(s): J. N. Chhauda, M. G. Tamhankar, Baby Kuriakose, and E. V. Thomas
Publication: Special Publication
Appears on pages(s): 389-415
Keywords: bridge bearings; bridges (structures) compression tests; field tests; pads; performance tests; plastics, polymers and resins; research; rubber; shear tests; specifications.
Abstract:Paper reports findings of the research investigation carried out to develop natural rubber compound for bridge bearings. Seven different type of compounds were formulated and these were subjected to material and structural testing in accordance with the prescribed specifications. Scope of the structural tests included static compression and shear as well as dynamic and field tests. The paper presents observations on the material properties vis-a-vis ingredients of the compounds supported by the corresponding structural tests. Studies indicated that a specially compounded NR vulcanizate with a semi efficient vulcanizing system can give bearing pads which will meet the desired specifications. NR bridge bearing pads prepared from the selected compound exhibited structural properties comparable to the commercially available synthetic rubber pads.
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