A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Behaviour of Reinforced Recycled Aggregate Concrete Beams Subjected to Torsional Loading
https://orcid.org/http://orcid.org/0000-0002-9535-9889
https://orcid.org/http://orcid.org/0000-0002-8299-9676
https://orcid.org/http://orcid.org/0000-0001-6298-0524
Concrete as an important and widely used construction material requires the bulk amount of cement, sand, water, and aggregates. As a result, the use of natural aggregates (NA) in the construction industry may result in the depletion of sources from which natural aggregates are extracted. The results of several investigations on concrete prepared with recycled aggregates up to a replacement level of 30% with natural aggregates have been good or comparable to conventional concrete. However, these studies have mainly focused on the mechanical properties under uniaxial loading. This study, therefore, focuses on studying the behavior of recycled aggregate concrete when subjected to torsional loading. For this purpose, flanged concrete beams were designed and cast in such a way that web of the beams was subjected to torsional moment by applying loads on the flanges. Specimens were cast using natural aggregates (NA) and recycled concrete aggregates with a concrete mix design of 1:1.24:2.6 (cement: sand: coarse aggregates) and water to cement ratio of 0.43. For the case of the recycled aggregate concrete (RAC) specimens, 30% of natural aggregates were replaced by recycled concrete aggregates. Based on the experimental investigation, it was found that the natural aggregate concrete (NAC) beams have a higher torsional capacity and depict a more ductile behaviour in comparison to (RAC) beams. However, the overall behaviour of RAC beams was found to be similar to NAC beams in terms of failure modes and cracking patterns reflecting that RAC can be used as a partial replacement of NA in structural concrete.
Behaviour of Reinforced Recycled Aggregate Concrete Beams Subjected to Torsional Loading
https://orcid.org/http://orcid.org/0000-0002-9535-9889
https://orcid.org/http://orcid.org/0000-0002-8299-9676
https://orcid.org/http://orcid.org/0000-0001-6298-0524
Concrete as an important and widely used construction material requires the bulk amount of cement, sand, water, and aggregates. As a result, the use of natural aggregates (NA) in the construction industry may result in the depletion of sources from which natural aggregates are extracted. The results of several investigations on concrete prepared with recycled aggregates up to a replacement level of 30% with natural aggregates have been good or comparable to conventional concrete. However, these studies have mainly focused on the mechanical properties under uniaxial loading. This study, therefore, focuses on studying the behavior of recycled aggregate concrete when subjected to torsional loading. For this purpose, flanged concrete beams were designed and cast in such a way that web of the beams was subjected to torsional moment by applying loads on the flanges. Specimens were cast using natural aggregates (NA) and recycled concrete aggregates with a concrete mix design of 1:1.24:2.6 (cement: sand: coarse aggregates) and water to cement ratio of 0.43. For the case of the recycled aggregate concrete (RAC) specimens, 30% of natural aggregates were replaced by recycled concrete aggregates. Based on the experimental investigation, it was found that the natural aggregate concrete (NAC) beams have a higher torsional capacity and depict a more ductile behaviour in comparison to (RAC) beams. However, the overall behaviour of RAC beams was found to be similar to NAC beams in terms of failure modes and cracking patterns reflecting that RAC can be used as a partial replacement of NA in structural concrete.
Behaviour of Reinforced Recycled Aggregate Concrete Beams Subjected to Torsional Loading
https://orcid.org/http://orcid.org/0000-0002-9535-9889
https://orcid.org/http://orcid.org/0000-0002-8299-9676
https://orcid.org/http://orcid.org/0000-0001-6298-0524
Concrete as an important and widely used construction material requires the bulk amount of cement, sand, water, and aggregates. As a result, the use of natural aggregates (NA) in the construction industry may result in the depletion of sources from which natural aggregates are extracted. The results of several investigations on concrete prepared with recycled aggregates up to a replacement level of 30% with natural aggregates have been good or comparable to conventional concrete. However, these studies have mainly focused on the mechanical properties under uniaxial loading. This study, therefore, focuses on studying the behavior of recycled aggregate concrete when subjected to torsional loading. For this purpose, flanged concrete beams were designed and cast in such a way that web of the beams was subjected to torsional moment by applying loads on the flanges. Specimens were cast using natural aggregates (NA) and recycled concrete aggregates with a concrete mix design of 1:1.24:2.6 (cement: sand: coarse aggregates) and water to cement ratio of 0.43. For the case of the recycled aggregate concrete (RAC) specimens, 30% of natural aggregates were replaced by recycled concrete aggregates. Based on the experimental investigation, it was found that the natural aggregate concrete (NAC) beams have a higher torsional capacity and depict a more ductile behaviour in comparison to (RAC) beams. However, the overall behaviour of RAC beams was found to be similar to NAC beams in terms of failure modes and cracking patterns reflecting that RAC can be used as a partial replacement of NA in structural concrete.
Behaviour of Reinforced Recycled Aggregate Concrete Beams Subjected to Torsional Loading
Lecture Notes in Civil Engineering
Ilki, Alper (editor) / Çavunt, Derya (editor) / Çavunt, Yavuz Selim (editor) / Khan, Asad-ur-Rehman (author) / Fareed, Shamsoon (author) / Khalid, Fatima (author)
International Symposium of the International Federation for Structural Concrete ; 2023 ; Istanbul, Türkiye
2023-06-01
9 pages
Article/Chapter (Book)
Electronic Resource
English
Torsional behavior of reinforced recycled aggregate flowing concrete hollow section beams
| BASE | 2021
Behaviour of reinforced concrete beams containing recycled aggregate
| British Library Conference Proceedings | 1993
Behaviour of Bamboo Reinforced Concrete Beams With 100% Recycled Coarse Aggregate
| BASE | 2019
Flexural behavior of reinforced recycled aggregate concrete beams under short-term loading
| Springer Verlag | 2012