Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Axial Behavior of New Brick and Recycled Brick Aggregate Concrete Columns
Most old structures in Bangladesh are made of poor-quality materials, low-strength concrete (about 15–25 MPa strength), and brick aggregate because of the acute scarcity of natural stones in the early days. The adequacy of these old structures remains a question. Moreover, the updated building code demands a more stringent design philosophy. Therefore, this research aims to investigate the axial behavior of such old columns under concentric loading. The columns are prepared with recycled brick aggregate concrete (RBAC) and compared with new brick aggregate concrete (NBAC) columns. Two concrete strengths are designed using recycled brick aggregate (RBA), such as 17–25 MPa, whereas only 17 MPa concrete is prepared using new brick aggregate (NBA) for comparison purposes. Five square columns of one-third scale with dimensions of 150 × 150 × 950 mm are tested under concentric loading to investigate the behavior of sub-standard brick aggregate concrete columns regarding failure mode, axial capacity, deformation response, ductility, and toughness. The results show that the axial capacity of the 17 MPA NBAC and RBAC columns is similar, but increasing the strength of RBAC columns from 17 to 25 MPa increases up to 32% capacity. Thus, this study will also encourage engineers to reuse recycled brick aggregate (RBA) in reinforced concrete (RC) members by ensuring proper structural detailing.
Axial Behavior of New Brick and Recycled Brick Aggregate Concrete Columns
Most old structures in Bangladesh are made of poor-quality materials, low-strength concrete (about 15–25 MPa strength), and brick aggregate because of the acute scarcity of natural stones in the early days. The adequacy of these old structures remains a question. Moreover, the updated building code demands a more stringent design philosophy. Therefore, this research aims to investigate the axial behavior of such old columns under concentric loading. The columns are prepared with recycled brick aggregate concrete (RBAC) and compared with new brick aggregate concrete (NBAC) columns. Two concrete strengths are designed using recycled brick aggregate (RBA), such as 17–25 MPa, whereas only 17 MPa concrete is prepared using new brick aggregate (NBA) for comparison purposes. Five square columns of one-third scale with dimensions of 150 × 150 × 950 mm are tested under concentric loading to investigate the behavior of sub-standard brick aggregate concrete columns regarding failure mode, axial capacity, deformation response, ductility, and toughness. The results show that the axial capacity of the 17 MPA NBAC and RBAC columns is similar, but increasing the strength of RBAC columns from 17 to 25 MPa increases up to 32% capacity. Thus, this study will also encourage engineers to reuse recycled brick aggregate (RBA) in reinforced concrete (RC) members by ensuring proper structural detailing.
Axial Behavior of New Brick and Recycled Brick Aggregate Concrete Columns
Lecture Notes in Civil Engineering
Alam, M. Shahria (Herausgeber:in) / Hasan, G. M. Jahid (Herausgeber:in) / Billah, A. H. M. Muntasir (Herausgeber:in) / Islam, Kamrul (Herausgeber:in) / Miah, Abdullah (Autor:in) / Bachu, Hasiba Afrin Eema (Autor:in) / Jahidul Islam, Md. (Autor:in) / Muniruzzaman, Md. (Autor:in) / Shahjalal, Md. (Autor:in) / Ahmed, Tasnia (Autor:in)
International Conference on Advances in Civil Infrastructure and Construction Materials ; 2023 ; Dhaka, Bangladesh
31.08.2024
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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