Behavior of pumice hybrid-fiber reinforced concrete slabs under blast loading

Document Type : Research Article

Authors

1 Ihu-Qom Uni

2 Civil Engineering Department, Sharif University of Technololgy, Tehran, Iran

Abstract

Nowadays, the explosion phenomenon has been considered by structural engineers due to the increase in terrorist attacks and unforeseen events. Therefore, the calculation of the final dynamic loads resulting from these loadings should be considered as a criterion in order to design structures and protect military buildings. In this investigation, the behavior of pumice hybrid-fiber reinforced concrete slabs under blast loading was assessed. To evaluate the performance of pumice hybrid-fiber reinforced concrete, contact explosion test on slabs with dimensions 100×100×10 cm3 was conducted. Six slabs, including one unreinforced concrete slab and five fiber-reinforced concrete slabs, were prepared. Also, C4 explosive material was used to investigate different failure modes of slabs. The results showed that the addition of various types of fibers improved the behavior of slabs. Also, it is concluded that the replacement of cement and steel fibers with pumice and polyolefin fibers, respectively, led to a slight increment in the number and extent of cracks; however, the costs were significantly decreased.

Keywords

Main Subjects

References

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Amirkabir Journal of Civil Engineering
Volume 54, Issue 6
September 2022
Pages 2081-2100

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