Flexural Characteristics of SFRSCC and SFRNC One Way Slabs

Kumari, T. Geetha; Puttappa, C. G.; Shashidar, C.; Muthu, K. U.

doi:10.15623/ijret.2013.0207030

Cited by 2 publications

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“…It is shown in Figures (5) to (12) that increasing slab thickness (t), longitudinal steel ratio (ρ) (Figures (5) to (8)) and steel fiber ratio (V f ) (Figures (9) to ( 12)) stiffens load-deflection curves leading to smaller deflections at a certain load. Higher toughness and more ductile failure were also observed in load-deflection curves when t, ρ and V f increase.…”

Section: Load-deflection Behaviormentioning

confidence: 99%

“…Incorporating steel fiber can extend the above benefits of SCC by also providing crack bridging ability, higher toughness and long-term durability [9]. Also, using steel fiber in SCC is easier than using it in conventional vibrated concrete [10] which complicates the construction process and requires higher level of vibration to overcome the construction problems.…”

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confidence: 99%

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Behavior of Steel Fiber Reinforced Self Compacting Concrete Slabs under One-way Bending

Mohammed¹

2015

ETJ

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This paper presents an experimental investigation on the flexural behavior of reinforced concrete slabs under one way bending. Sixteen simply supported slabs of dimensions 1000mm×450mm×50 or 70mm were manufactured and tested. Twelve slabs were constructed using self compacting concrete (SCC) and four using conventional concrete (CC). Four variables were adopted to investigate slabs behavior: type of concrete (CC or SCC), longitudinal steel ratio (ρ), slab thickness (t) and steel fiber ratio (V f ). Test results showed that slab thickness (t) was the most effective factor in increasing ultimate load (P u ) of SCC slabs (up to 111%) as compared to the longitudinal steel ratio (ρ) and steel fiber ratio (V f ) with ΔP u up to 64% and 75%, respectively. Results also showed that using steel fiber in SCC up to 0.8% reduces its filling and passing abilities but it still satisfies the requirements of SCC specifications. In contrast, steel fiber increase compressive strength and modulus of rupture of SCC up to 10% and 60%, respectively.

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Section: Load-deflection Behaviormentioning

confidence: 99%

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confidence: 99%

Behavior of Steel Fiber Reinforced Self Compacting Concrete Slabs under One-way Bending

Mohammed¹

2015

ETJ

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Flexural Strength of Modified Reactive Powder Concrete One Way Slabs

Abtan¹,

Hassan²

2019

TOCIEJ

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Background: Over the last three decades, the interest in using advanced high-performance materials in the construction industry has been increasing worldwide. Recently, a very high strength cement-based composite with high ductility called Reactive Powder Concrete (RPC) has been developed. The RPC concept is based on the principle that a material with a minimum of defects such as micro-cracks and voids will be able to achieve greater load-carrying capacity and durability. Methods: In the present paper, an experimental program of sixteen reinforced concrete one-way slabs was conducted to investigate their behavior under flexural loading. Four of these slabs were with Normal Concrete (NC) and the others of Modified Reactive Powder Concrete (MRPC). All slabs were identical in the dimension of its length and width (1000×500) mm, respectively, and its thickness was varied as one of the variables used in the present work. Other parameters for a one-way slab are concrete type, steel fibers content and flexural steel reinforcement ratio (0.33 and 0.66)%. Results: The results showed that the MRPC slabs with steel fibers failed in a ductile manner and had ultimate load capacity more than that of non-fibrous MRPC with an improvement percentage that reaches up to (66) %. This percentage became (212) % in comparison with normal concrete slabs. Conclusions: Moreover, the results showed that slabs, for both concrete types, reinforced with lower steel ratio failed by tension mode, otherwise, the slabs of higher reinforcement steel ratio failed by combined tension-shear mode. However, an improvement was observed in the ultimate load capacity up to (53 and 98) % when the ratio of steel reinforcement and slab thickness increased, respectively.

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Flexural Characteristics of SFRSCC and SFRNC One Way Slabs

Cited by 2 publications

References 0 publications

Behavior of Steel Fiber Reinforced Self Compacting Concrete Slabs under One-way Bending

Behavior of Steel Fiber Reinforced Self Compacting Concrete Slabs under One-way Bending

Flexural Strength of Modified Reactive Powder Concrete One Way Slabs

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