The recent progress of recycled steel fiber reinforced concrete

Liew, K.M.; Akbar, Arslan

doi:10.1016/j.conbuildmat.2019.117232

Cited by 229 publications

(105 citation statements)

References 103 publications

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“…Concrete is used worldwide as a construction material and is classified as the second most consumable material after water [ 9 , 10 ]. It is reported that for every human about three tons of concrete is produced [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Application of Gene Expression Programming (GEP) for the Prediction of Compressive Strength of Geopolymer Concrete

et al. 2021

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For the production of geopolymer concrete (GPC), fly-ash (FA) like waste material has been effectively utilized by various researchers. In this paper, the soft computing techniques known as gene expression programming (GEP) are executed to deliver an empirical equation to estimate the compressive strength of GPC made by employing FA. To build a model, a consistent, extensive and reliable data base is compiled through a detailed review of the published research. The compiled data set is comprised of 298 experimental results. The utmost dominant parameters are counted as explanatory variables, in other words, the extra water added as percent FA (), the percentage of plasticizer (), the initial curing temperature (), the age of the specimen (), the curing duration (), the fine aggregate to total aggregate ratio (), the percentage of total aggregate by volume (), the percent SiO2 solids to water ratio () in sodium silicate (Na2SiO3) solution, the NaOH solution molarity (), the activator or alkali to FA ratio (), the sodium oxide (Na2O) to water ratio () for preparing Na2SiO3 solution, and the Na2SiO3 to NaOH ratio (). A GEP empirical equation is proposed to estimate the of GPC made with FA. The accuracy, generalization, and prediction capability of the proposed model was evaluated by performing parametric analysis, applying statistical checks, and then compared with non-linear and linear regression equations.

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Section: Introductionmentioning

confidence: 99%

Application of Gene Expression Programming (GEP) for the Prediction of Compressive Strength of Geopolymer Concrete

et al. 2021

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“…In recent years, several investigations have explored the potential of end-of-life tires by-products in the construction industry, such as the use of recycled steel fibers (RSFs) in the reinforcement of cement-based materials [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ], namely, in fiber reinforced concrete (FRC). FRC is being used in slabs and shells, such as the case of flooring and tunneling since the support redundancy of this type of structure favors the occurrence of a high level of stress redistribution during crack propagation, which increases their ultimate load regarding their cracking load [ 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

“…According to the literature, RSFs show a high potential to be an effective concrete reinforcement for application in structural elements, namely, those that are exposed to coastal/marine environments [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. However, research on the corrosion resistance of recycled steel fiber reinforced concrete (RSFRC) is almost non-existent, namely, concerning the effects of chloride attack on the fiber reinforcement mechanisms developed during the fiber pull-out from the matrix in cracked RSFRC.…”

Section: Introductionmentioning

confidence: 99%

“…The RSFs’ reinforcement efficiency and the post-cracking behavior of RSFRC can be assessed by performing conventional material tests, including the double edge wedge splitting test [ 3 , 4 , 7 ] or the three-point notched beam bending test (3PNBBT) [ 5 , 6 , 7 ]. However, the stress–crack width (

) relationship, obtained from these tests is noticeably influenced by the number and orientation of fibers crossing the crack that propagates along the pre-notched plane [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

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Influence of the Chloride Attack on the Post-Cracking Behavior of Recycled Steel Fiber Reinforced Concrete

2021

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The main purpose of the present work is to study the mechanical behavior and durability performance of recycled steel fiber reinforced concrete (RSFRC) under a chloride environment. To this end, the effect of chloride attack on the load-carrying capacity of pre-cracked RSFRC round panels is investigated by performing round panel tests supported on three points (RPT-3ps), considering the influence of the crack width and the fiber distribution/orientation profile. In addition, the influence of the adopted chloride exposure conditions on the post-cracking constitutive laws of the developed RSFRC is also assessed by performing numerical simulations for the prediction of the long-term performance of RSFRC under these aggressive conditions. The tensile stress–crack width relationship of RSFRC is derived by performing an inverse analysis with the RPT-3ps results. The obtained experimental and numerical results show a negligible effect of the chloride attack on the post-cracking behavior of RSFRC for the chloride exposure conditions and pre-crack width levels adopted in this study.

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“…By increasing the amount of RSF, the flowability is decreased, as shown from the results of Simalti and Singh (2019) and a similar outcome attained by (Groli, Pérez Caldentey, & Soto, 2014;Mastali & Dalvand, 2016, 2017. The workability and homogeneity of the fresh concrete are inversely proportional to the amount of RSF (Liew & Akbar, 2020). This study investigates the influence of utilizing both RCA and RSF on fresh properties of SCC, like flowability, passing ability, and viscosity of the fresh concrete by Slump Flow, J-Ring, and V-Funnel test.…”

Section: Introductionmentioning

confidence: 99%

Rheological Behavior of Recycled Fiber Reinforced Self-Compacted Concrete with Recycled Coarse Aggregate

2020

EAJSE

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It is known that self-compacted concrete SCC is used to serve the construction of concrete structures with complicated shapes having congested reinforcements. Sustainable SCC is produced now by recycled concrete aggregates RCA from construction wastes. To improve the strength of this concrete, with a further eye on sustainability, recycled steel fibers RSF is utilized as reinforcing to the SCC. In this work, 12 SCC mixes were prepared with different mixing proportions. Cement is replaced with 5% silica fume. RCA replacement percentages were 25%, 50%, and 100% RCA. RSF was used with 0.50%, 0.75% by volume of concrete. The slump flow, J-Ring, and V-Funnel tests are performed to estimate the rheological behavior of all concrete mixtures. Results indicate that RCA/RSF SCC passed the slump flow, J-Ring tests, and overpassed V-Funnel test requirements satisfactorily.

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The recent progress of recycled steel fiber reinforced concrete

Cited by 229 publications

References 103 publications

Application of Gene Expression Programming (GEP) for the Prediction of Compressive Strength of Geopolymer Concrete

Application of Gene Expression Programming (GEP) for the Prediction of Compressive Strength of Geopolymer Concrete

Influence of the Chloride Attack on the Post-Cracking Behavior of Recycled Steel Fiber Reinforced Concrete

Rheological Behavior of Recycled Fiber Reinforced Self-Compacted Concrete with Recycled Coarse Aggregate

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