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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: Absorbing Capacity of Cushion System Using Concrete Slab Reinforced With AFRP Rods
Author(s): T. Tamura, H. Mikami, O. Nakano, and N. Kishi
Publication: Special Publication
Appears on pages(s): 301-314
Keywords: fiber reinforced plastics; fibers; impact; impact strength; nuclear reactors; reinforced concrete; shock resistance; slabs; stresses; Structural Research
Abstract:Presents the results of experimental study on the shock-absorbing performance of a prototype three-layered cushion system. This system consists of a concrete core slab reinforced with a braided aramid fiber plastic (AFRP) rod, and sandwiched between sand (top) and expanded polystyrol (bottom) layers. To study the effect of the rigidity, elongation, and bond strength of reinforcing bars on the shock-absorbing performance of a three-layered cushion system, three types of reinforcing bars were used: AFRP rod with surface bonded with silica, nonsand surfaced AFRP rod, and deformed steel bar. Furthermore, these results were compared with the results when a single sand layer was used as cushion material. The results achieved from these experiments are: (1) the transmitted stress of the three-layered cushion system is distributed more effectively than that of a single sand layer; (2) the distribution pattern of the transmitted stress in the three-layered cushion system was affected by the bond property of the reinforcing bar; and (3) duration time of the transmitted impact force was affected by the rigidity of the reinforcing bars.
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