Influence of aspect ratio on flexural behavior of reinforced self-compacting concrete beams

Concrete is a quasi-brittle material whose basic mechanical properties are size-dependent. Due to simple substitution in profoundly congested support structures without experiencing any consolidation, non-segregation property, and smooth finishing, it could be an exceptionally great choice in the co...

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Main Authors: Sumathy Raju, V. Arulpandian, Siva Avudaiappan, Mugahed Amran, Roman Fediuk, Nikolai Vatin, Erick Saavedra Flores, Mohammad Ali Mosaberpanah
Format: Article
Language:English
Published: Elsevier 2022-12-01
Series:Case Studies in Construction Materials
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214509522004715
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author Sumathy Raju
V. Arulpandian
Siva Avudaiappan
Mugahed Amran
Roman Fediuk
Nikolai Vatin
Erick Saavedra Flores
Mohammad Ali Mosaberpanah
author_facet Sumathy Raju
V. Arulpandian
Siva Avudaiappan
Mugahed Amran
Roman Fediuk
Nikolai Vatin
Erick Saavedra Flores
Mohammad Ali Mosaberpanah
author_sort Sumathy Raju
collection DOAJ
description Concrete is a quasi-brittle material whose basic mechanical properties are size-dependent. Due to simple substitution in profoundly congested support structures without experiencing any consolidation, non-segregation property, and smooth finishing, it could be an exceptionally great choice in the concrete industry. The research object is the size effect on the flexural behavior of reinforced self-compacting concrete (SCC) beams by varying depth, length, and span. The length to depth ratio (aspect ratio) was 3.88, 5.38, 8.75, 11.5, and 15.38. SCC trial mixes were technologically advanced using FA (FA) as filler material and conplast SP430 as Super-plasticizer (SP). The workability properties were determined via the T50 cm slump flow, slump flow, U-box, V-funnel, J-ring, and L-box tests. FA (30%) with SP (1.9%) is satisfied with all the requirements of SCC as per EFNARC guidelines, and the designed compressive strength of concrete was obtained as 30 MPa. A total of six beams with various sizes, such as depths of 100 mm, 150 mm, and 200 mm, and lengths of 900, 1700, and 2200 mm, were cast with 1.2% tensile reinforcement bars. Based on the depth effect of beams, the load-deflection behavior, flexural strength, ductility index, and stiffness were studied. It is revealed that there is a decrease in strength properties by increasing the depth of beams during the static load conditions. Beams with a length equal to 1700 mm reached the best performance. It was also found the most advantageous l/d proportion, in terms of mechanical performance, is equal to 5.38.
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spelling doaj.art-b42a91da9edb49899ca969da46786b3f2022-12-22T02:48:29ZengElsevierCase Studies in Construction Materials2214-50952022-12-0117e01339Influence of aspect ratio on flexural behavior of reinforced self-compacting concrete beamsSumathy Raju0V. Arulpandian1Siva Avudaiappan2Mugahed Amran3Roman Fediuk4Nikolai Vatin5Erick Saavedra Flores6Mohammad Ali Mosaberpanah7Department of Civil Engineering, AlagappaChettiar Government College of Engineering and Technology, Karakudi 630 003, IndiaDepartment of Civil Engineering, National Engineering College, Kovilpatti 628 503, IndiaDepartamento de Ingeniería Civil, Universidad de Concepción, Concepción, Chile; Corresponding author.Department of Civil Engineering, College of Engineering, Prince Sattam Bin Abdulaziz University, 16273 Alkharj, Saudi Arabia; Department of Civil Engineering, Faculty of Engineering and IT, Amran University, 9677 Amran, Yemen; Corresponding author at: Department of Civil Engineering, College of Engineering, Prince Sattam Bin Abdulaziz University, 16273 Alkharj, Saudi Arabia.Polytechnic Institute, Far Eastern Federal University, 690922 Vladivostok, Russia; Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, RussiaPeter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, RussiaDepartamento de Ingeniería en ObrasCiviles, Universidad de Santiago de Chile, Av. Ecuador 3659, Estación Central, Santiago, ChileCivil Engineering Department, Cyprus International University, North Cyprus, TurkeyConcrete is a quasi-brittle material whose basic mechanical properties are size-dependent. Due to simple substitution in profoundly congested support structures without experiencing any consolidation, non-segregation property, and smooth finishing, it could be an exceptionally great choice in the concrete industry. The research object is the size effect on the flexural behavior of reinforced self-compacting concrete (SCC) beams by varying depth, length, and span. The length to depth ratio (aspect ratio) was 3.88, 5.38, 8.75, 11.5, and 15.38. SCC trial mixes were technologically advanced using FA (FA) as filler material and conplast SP430 as Super-plasticizer (SP). The workability properties were determined via the T50 cm slump flow, slump flow, U-box, V-funnel, J-ring, and L-box tests. FA (30%) with SP (1.9%) is satisfied with all the requirements of SCC as per EFNARC guidelines, and the designed compressive strength of concrete was obtained as 30 MPa. A total of six beams with various sizes, such as depths of 100 mm, 150 mm, and 200 mm, and lengths of 900, 1700, and 2200 mm, were cast with 1.2% tensile reinforcement bars. Based on the depth effect of beams, the load-deflection behavior, flexural strength, ductility index, and stiffness were studied. It is revealed that there is a decrease in strength properties by increasing the depth of beams during the static load conditions. Beams with a length equal to 1700 mm reached the best performance. It was also found the most advantageous l/d proportion, in terms of mechanical performance, is equal to 5.38.http://www.sciencedirect.com/science/article/pii/S2214509522004715Size effectSelf-compacting concreteFly ashSuper-plasticizer
spellingShingle Sumathy Raju
V. Arulpandian
Siva Avudaiappan
Mugahed Amran
Roman Fediuk
Nikolai Vatin
Erick Saavedra Flores
Mohammad Ali Mosaberpanah
Influence of aspect ratio on flexural behavior of reinforced self-compacting concrete beams
Case Studies in Construction Materials
Size effect
Self-compacting concrete
Fly ash
Super-plasticizer
title Influence of aspect ratio on flexural behavior of reinforced self-compacting concrete beams
title_full Influence of aspect ratio on flexural behavior of reinforced self-compacting concrete beams
title_fullStr Influence of aspect ratio on flexural behavior of reinforced self-compacting concrete beams
title_full_unstemmed Influence of aspect ratio on flexural behavior of reinforced self-compacting concrete beams
title_short Influence of aspect ratio on flexural behavior of reinforced self-compacting concrete beams
title_sort influence of aspect ratio on flexural behavior of reinforced self compacting concrete beams
topic Size effect
Self-compacting concrete
Fly ash
Super-plasticizer
url http://www.sciencedirect.com/science/article/pii/S2214509522004715
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