Assessment of Reinforced Recycling Aggregate Concrete Beams Under Torsional Moment

Sarsam, Kaiss F.; Salih, Nisreen; Hussein, Mazin

doi:10.14419/ijet.v7i4.20.27403

Cited by 4 publications

(7 citation statements)

References 1 publication

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“…The mean of the three-cylinder test data was used to calculate the compressive and tensile strengths of all three types of concrete. With an increases the percentage of RCA in concrete, compressive and tensile strength decreases, and a similar trend was reported in the literature [6]. Figure 10 compares NCA and RCA concrete compressive and tensile strengths.…”

Section: Effect Of Rca On Compressive and Tensile Strength Of Racsupporting

confidence: 84%

“…The ATENA-3D FEM software was also used to investigate the flexural capacity of a slab, and the results were found consistent with experimental data [14]. Except for the investigation by Sarsam et al [6], there is a shortage of information in the literature on a pure torsional test of RAC beams in analytical and experimental works. The primary purpose of this comparative study was to examine the effect of RCA in RAC beams on the pure torsional behavior under static loading conditions.…”

Section: Introductionmentioning

confidence: 56%

“…The mechanical behavior of wall beams made of RAC showed better structural integrity than conventional brick wall beams [5]. According to Sarsam et al [6], the torsional behavior of RAC beams was found satisfactory when compared to NAC beams and concluded that the use of RAC in structural beams is practically possible in pure torsion. The experimental seismic torsional behavior of the NAC and RAC beams was found satisfactory [7].…”

Section: Introductionmentioning

confidence: 99%

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Analytical and Experimental Investigation of Recycled Aggregate Concrete Beams Subjected to Pure Torsion

Masne

Suryawanshi

2022

IJE

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This study presents the ATENA-3D simulation of natural aggregate concrete (NAC) and recycled aggregate concrete (RAC) beams subjected to pure torsion and the beam was validated by the experimental results with corresponding outputs. All the test specimens were 150 mm wide, 250 mm, deep and 1800 mm long. The natural coarse aggregate (NCA) were replaced by coarse recycled concrete aggregate (RCA) at three replacement ratios of 0 %, 50 %, and 100 % to prepare concrete. All the beam specimens were simulated and tested to assess the parameters like torque, twist, crack pattern, stiffness, and toughness in pure torsion. The comparison of ATENA-3D and experimental results showed that torque resistance capacity, stiffness, and toughness of beams decreased as the % of RCA increased in the concrete. A similar torque-twist curve pattern was observed in simulation and experimental studies. All the specimens failed due to torsional cracking. The torsional capacity of the beams in ATENA-3D software was higher by 9.80 %, 10.67 %, and 12.80 % than the experimental results. The results reveal that varying the quantity of RCA in RAC does not compromise the pure torsional behavior of the beam in both methods. Also, it can be concluded that the use of RCA in RAC is acceptable for structural concrete beams in pure torsion.

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Section: Effect Of Rca On Compressive and Tensile Strength Of Racsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 56%

Section: Introductionmentioning

confidence: 99%

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Analytical and Experimental Investigation of Recycled Aggregate Concrete Beams Subjected to Pure Torsion

Masne

Suryawanshi

2022

IJE

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“…When replacing the NCA with RCA, the load carrying capacity and the stiffness are decreased, while the deflection is increased in case of combined bending and torsional loading. The differences in values for the first crack and ultimate torque between RCA and NCA beams were less than 12.5 %, and 7.7 %, respectively [12]. RCA has more water absorption than NCA up to 1246% [13].…”

Section: Introductionmentioning

confidence: 87%

Torsion Behavior of Recycled Aggregates Concrete Beams With Openings

Osman

Shawky

Abdalla

2022

Journal of International Society for Science and Engineering

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Due to the fast rise in material and transportation costs, the recycling of construction waste has become a critical operation in the construction industry. Therefore, the use of construction waste as coarse aggregate should be researched to ensure that the structural behavior of these structures does not differ from that of non-recycled (natural) coarse aggregate buildings (NCA). An experimental investigation was conducted in this study to explore the influence of recycled coarse aggregate (RCA) on reinforced concrete beams with opening and subjected to pure torsion. Six beams with identical cross-sectional dimensions of 150 x 350 mm and a total span of 1400 mm attached monolithically at the two ends by two cantilevers having 200 mm wide and 350 mm long are included in the investigation. The tested beams included two solid beams and four beams with 300 x 150 mm opening. The existence of opening and the ratio of RCA replacement were considered as the parameters in this investigation. From the results of this study, the crack patterns of RCA and NCA specimens were similar, and the increase of RCA replacement ratio led to a decrease in the cracking and ultimate capacities. The existence of an opening changed the failure mode from sudden torsional shear failure as in the reference specimen without opening to crushing of concrete and concrete cover separation. A comparison between the experimental outcomes, the ACI code, and the ECP-203 code was conducted, and showed a good agreement with the experimental results.

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“…It is stated that the use of RCA as a structural material in civil engineering construction is safe and practicable based on its mechanical and structural properties [19]. RAC beams have better performance than NAC beams, and they can be used as structural concrete [20]. The utilization of RAC in structural applications has become an essential aspect in recent studies [21].…”

Section: Introductionmentioning

confidence: 99%

Effect of Wastewater Curing and Elevated Temperature on Recycled Concrete Aggregates from Construction and Demolition Wastes

Masne

Suryawanshi

2023

IJEE

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In this study, natural coarse aggregates were replaced with coarse recycled concrete aggregate (RCA) in 0 %, 50 %, and 100 % extracted from construction and demolition wastes. Their recycling could lead to a greener resolution for preserving the environment and paving the way for sustainability through solid waste management. The compressive strength of 0 %, 50 % and 100 % RCA at 365 days was reduced by 3.97 %, 4.88 %, 6.81 %, respectively, compared to the compressive strength at 28 days. Tensile strength at 365 days was reduced by 4.31 %, 6.50 % and 9.83 % compared to tensile strength at 28 days. There was no discernible effect of water type on the strength properties of concrete. Compared to other combinations, 100 % RCA concrete experiences a greater percentage of weight loss owing to evaporation of free water. When temperature was elevated, the concrete matrix expands and deep cracks were observed on the concrete surface. The overall performance of recycled aggregate concrete was not much influenced by the use of such aggregates, so these findings will add a new achievement to a sustainable construction through solid waste management.

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Assessment of Reinforced Recycling Aggregate Concrete Beams Under Torsional Moment

Cited by 4 publications

References 1 publication

Analytical and Experimental Investigation of Recycled Aggregate Concrete Beams Subjected to Pure Torsion

Analytical and Experimental Investigation of Recycled Aggregate Concrete Beams Subjected to Pure Torsion

Torsion Behavior of Recycled Aggregates Concrete Beams With Openings

Effect of Wastewater Curing and Elevated Temperature on Recycled Concrete Aggregates from Construction and Demolition Wastes

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