Study on mechanical properties of very low-strength concrete from an existing building
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Bibliographic Details
| Author(s): |
Eisuke Sakamoto
(Hiroshima Institute of Technology, Hiroshima, Japan)
Kazushi Sadasue (Hiroshima Institute of Technology, Hiroshima, Japan) Hideo Araki (Hiroshima Institute of Technology, Hiroshima, Japan) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Resilient technologies for sustainable infrastructure, Christchurch, New Zealand, 3-5 February 2021 | ||||
| Published in: | IABSE Congress Christchurch 2020 | ||||
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| Page(s): | 1328-1335 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/christchurch.2021.1328 | ||||
| Abstract: |
The properties of old concrete are directly related to the seismic performance of the existing reinforced concrete (RC) buildings and are important factors in seismic evaluations of these buildings. However, the strength and elasticity modulus of concrete in existing buildings are affected by deterioration over long periods, uncertainty in the construction and several other important factors. Therefore, accumulating data and knowledges on the properties of old concrete and checking the validity of the equations used in the seismic evaluation is essential. For this study, 41 concrete cylinders were obtained from an RC building constructed in 1969. In this paper, we mainly discuss the mechanical properties of concrete. The compressive tests, tensile splitting tests, componential analysis of concrete and carbonation tests were performed. Additionally, the observed values were compared with the present standard and various estimation equations. |
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| Keywords: |
compressive strength modulus of elasticity splitting tensile strength existing building mechanical properties of concrete mix properties
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