Experimental and Numerical Investigation on the Shear Behavior of Engineered Cementitious Composite Beams with Hybrid Fibers

Maheswaran, Jeyaprakash; Chellapandian, M.; Sivasubramanian, Madappa V. R.; Murali, G.; Vatin, Nikolai

doi:10.3390/ma15145059

Cited by 11 publications

(4 citation statements)

References 34 publications

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“…This transition occurs due to changes in the internal force transmission within the beam. Consequently, the influence of material strength on the shear capacity of the beam also changes [ 22 , 23 ].…”

Section: Test Results and Analysismentioning

confidence: 99%

Experimental Study of the Shear Performance of Combined Concrete–ECC Beams without Web Reinforcement

Cheng,

Du,

Wang

et al. 2023

Materials

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Background: Shear damage of beams is typically brittle damage that is significantly more detrimental than flexural damage. Purpose: Based on the super-high toughness and good crack control ability of engineered cementitious composites (ECC), the shear performance of concrete–ECC beams was investigated by replacing a portion of the concrete in the tensile zone of reinforced concrete beams with ECC and employing high-strength reinforcing bars to design concrete–ECC beams. The purpose of this investigation is to elucidate and clarify the shear performance of concrete–ECC beams. Methodology/approach: Experimental and FE analyses were conducted on the shear performance of 36 webless reinforced concrete–ECC composite beams with varied concrete strengths, shear-to-span ratios, ECC thicknesses, and interfacial treatments between the layers. Results: The results indicate that the effect of the shear-to-span ratio is greater, the effect of the form of interface treatment is smaller, the effect is weakened after the ECC thickness is greater than 70 mm (i.e., the ratio of the replacement height to section height is approximately 0.35), the shear resistance is reduced when the hoop rate is greater, and the best shear resistance is obtained when the ECC 70 mm thickness and the hoop rate of 0.29% are used together. Conclusions: This study can serve as a technical reference for enhancing the problems of low durability and inadequate fracture control performance of RC beams in shear and as a guide for structural design research.

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Section: Test Results and Analysismentioning

confidence: 99%

Experimental Study of the Shear Performance of Combined Concrete–ECC Beams without Web Reinforcement

Cheng,

Du,

Wang

et al. 2023

Materials

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“…In a more recent study by Arulanandam et al [28], an approach using a thorough analytical and finite element analysis (FE) has been used to study the performance of engineered cementitious composite (ECC) beams with and without transverse reinforcements. In a follow-up study by Maheswaran et al [29], the shear behavior of engineered cementitious composite beams with a hybrid mix of polyvinyl alcohol (PVA) and polypropylene (PP) fibers was investigated experimentally and numerically. The primary objective of their study is to understand how ECC beams with mono and hybrid fiber combinations behave in shear under different shear scenarios.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the results, hybrid PVA-PP fibers were found to enhance the performance of ECC beams by improving their performance in terms of strength and ductility in comparison with steel and PP-fibers. moreover, a failure transition from brittle diagonal tension to ductile bending was observed when hybrid fibers were incorporated into ECC beams [29]. Additionally, ABAQUS software was utilized to conduct a detailed nonlinear finite element analysis [29].…”

Section: Introductionmentioning

confidence: 99%

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Influence of PVA and PP fibers addition on the durability and mechanical properties of engineered cementitious composites blended with silica fume and zeolite

Emamjomeha¹,

Behfarnia²,

Raji³

et al. 2023

Res. Eng. Struct. Mater.

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Over the past two decades the effects of different admixtures have been investigated on mechanical properties and durability of engineered cementitious composites (ECC). Despite this, materials such as silica fume and zeolite have not been thoroughly investigated. The present study was designed and implemented to evaluate the effects of silica fume, zeolite, and blast furnace slag (BFS) on engineered cementitious composites and to compare the mechanical properties and durability of the polyvinyl alcohol-ECC (PVA-ECC) and polypropylene-ECC (PP-ECC) specimens. For this purpose, specimens were subjected to adverse conditions in a 5% magnesium sulfate solution and lab conditions as the reference treatment to measure the post-treatment variations in their compressive strength, flexural strength, and mid-span deflection (MSD). Results demonstrated that PP-ECC was not only easier to manufacture but outperformed PVA-ECC in some respects as well. It was also observed that MSD increased in the PVA-ECC specimens but declined in the PP-ECC ones under identical increments in their BFS contents. Finally, all the specimens maintained under the lab conditions displayed the best performance in terms of strength and durability when 3% silica fume was added to their mixtures while the same addition led to the worst performance in the sulfate medium.

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A Model for Predicting Crack Width of PVA Fiber-Reinforced Recycled Aggregate Concrete Slabs

Yu,

Xie,

Fang

et al. 2024

KSCE J Civ Eng

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Experimental and Numerical Investigation on the Shear Behavior of Engineered Cementitious Composite Beams with Hybrid Fibers

Cited by 11 publications

References 34 publications

Experimental Study of the Shear Performance of Combined Concrete–ECC Beams without Web Reinforcement

Experimental Study of the Shear Performance of Combined Concrete–ECC Beams without Web Reinforcement

Influence of PVA and PP fibers addition on the durability and mechanical properties of engineered cementitious composites blended with silica fume and zeolite

A Model for Predicting Crack Width of PVA Fiber-Reinforced Recycled Aggregate Concrete Slabs

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