Durability of reinforced concrete member suffered from detonation

Author(s): Y. Yoda, K. Imamoto, M. Beppu
Paper category: Proceedings
Book title: Proceedings of the Seventh International Conference on Concrete under Severe Conditions – Environment and Loading
Editor(s): Z.J. Li, W. Sun, C.W. Miao, K.Sakai, O.E. Gjørv, N.Banthia
ISBN: 978-2-35158-124-7
e-ISBN: 978-2-35158-134-6
Publisher: RILEM Publications SARL
Publication year: 2013
Pages: 718-728
Total Pages: 11
Language : English

Abstract: It is often said that concrete suffered from an explosion have internal damage in it. However, there are small number of researches on the influence of damages on the strength and durability of concrete, because the damaged concrete structures due to explosion and fire have been demolished so far. However, in the case of First Fukushima Nuclear Power Plant, the structure should stand after the attack of fire and explosion. Hence, in this research, the influence of damages on the strength and durability of concrete was investigated. The explosion test was carried out with explosive of C4 on concrete test pieces. Damage rate of concrete was quantified with non-destructive tests such as CT (Computed tomography) - scan and air permeability tests. CT-scan is a non-destructive test using X-rays and it is often used for medical tests and recently, it is applied to detect the existence of internal defect of engineering materials. It displays the interior of materials by distribution of X-rays absorption. Authors will show that the concrete suffered from detonation exhibits decrease of strength, increase of moisture sorption and air permeability.

Online publication : 2013
Publication type : full_text
Public price (Euros) : 0.00