An Experimental Study on E-Waste Concrete

Alagusankareswari, K.; Kumar, Susheel; Vignesh, K.; Niyas, K. Abdul Hameed

doi:10.17485/ijst/2016/v9i2/86345

Cited by 32 publications

(10 citation statements)

References 5 publications

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“…Additionally, PCA has less density, unit weight, rigidity, and strength with respect to NCA, hence producing a high-stress zone that facilitates the spread of damage, which is also considered as the reason for strength reduction [ 53 , 54 ]. The influence of manufactured plastic aggregates on the STS of RPAC is consistent with the findings of past studies [ 11 , 56 ].…”

Section: Resultssupporting

confidence: 92%

“…Efforts are required by the modern world to take important steps in order to save nature without compromising on the overall performance of concrete. In the past, several attempts have been conducted with the aim of replacing natural aggregate with recycled aggregate [ 11 , 12 , 13 , 14 , 15 ]. Therefore, several other alternatives in concrete to natural aggregates such as demolition waste, plastic waste, paper, etc.…”

Section: Introductionmentioning

confidence: 99%

“…It was revealed that the plastic concrete seems to be satisfactory for utilization in aquatic structures as the durability characteristics are of major concern in marine structures [ 5 ], and compared with control concrete, the plastic concrete has shown higher resistivity against sulfate and chloride attack [ 8 , 37 ]. Additionally, from previous studies, it was reported that the workability of concrete containing plastic aggregates increases with respect to control concrete, owing to the zero water absorption capacity of plastic aggregate [ 11 , 15 ]. The abrasion resistance of plastic aggregates was rarely investigated and reported as greater than natural aggregates because of their improved toughness [ 38 ].…”

Section: Introductionmentioning

confidence: 99%

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Performance Evaluation of Plastic Concrete Modified with E-Waste Plastic as a Partial Replacement of Coarse Aggregate

et al. 2021

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Plastic electronic waste (E-waste) is constantly growing around the world owing to the rapid increase in industrialization, urbanization, and population. The current annual production rate of E-waste is 3–4% in the world and is expected to increase to 55 million tons per year by 2025. To reduce the detrimental impact on the environment and save natural resources, one of the best solutions is to incorporate waste plastic in the construction industry to produce green concrete. This study examines the use of manufactured plastic coarse aggregate (PCA) obtained from E-waste as a partial replacement of natural coarse aggregate (NCA) in concrete. Six types of concrete mix with 10%, 20%, 30%, 40%, and 50% substitution of NCA (by volume) with PCA are prepared and tested. This study investigates the effect of manufactured PCA on the fresh and hardened characteristics of concrete. The properties of recycled plastic aggregate concrete (RPAC) studied include workability, fresh density, dry density, compressive strength (CS), splitting tensile strength (STS), flexural strength (FS), sorptivity coefficient, abrasion resistance, ultrasonic pulse velocity (UPV), and alternate wetting and drying (W–D). The results indicate that the CS, STS, and FS of RPAC declined in the range of 9.9–52.7%, 7.8–47.5%, and 11–39.4%, respectively, for substitution ratios of 10–50%. However, the results also indicate that the incorporation of PCA (10–50%) improved the workability and durability characteristics of concrete. A significant decrement in the sorptivity coefficient, abrasion loss, and UPV value was observed with an increasing amount of PCA. Furthermore, RPAC containing different percentages of PCA revealed better results against alternate W–D cycles with respect to ordinary concrete.

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Section: Resultssupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance Evaluation of Plastic Concrete Modified with E-Waste Plastic as a Partial Replacement of Coarse Aggregate

et al. 2021

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“…Outra hipótese levantada na literatura por (OLOFINNADE; EDE; NDAMBUKI, 2017), diz que a força de ligação entre cimento e PCI são fracas, o que provoca a perda de resistência. Os valores ficaram próximos aos atingido por Alagusankareswari, 2016(ALAGUSANKARESWARI et al, 2016.…”

Section: Ensaio De Resistência à Tração Na Flexãounclassified

Avaliação Das Propriedades Mecânicas De Resistência À Compressão E À Flexão Do Concreto Com Substituição Parcial De Placa De Circuito Impresso No Agregado Graúdo Em Até 30%

Cabral

Conceição²,

Magnago

2020

RevistaUnivap

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Os materiais utilizados para produzir o concreto são finitos na natureza. Pensando nisso, existem diversos estudos comprometidos a encontrar substitutos para os agregados, seja graúdo ou miúdo. Esses substitutos, podem ser resíduos naturais, tais como: fibras naturais ou casca de arroz e etc, ou resíduos industriais, como pneus ou embalagens PET. Nesse artigo, foi utilizado como substituto no agregado graúdo, a Placa de Circuito Impresso (PCI), em proporções de 10%, 20% e 30%. As PCI´s são encontradas nos Resíduos de Equipamentos Eletro Eletrônicos (REEE). Para a realização dos testes, foi feita a extração dos componentes e feito a moagem num moinho de facas, onde a PCI foi moída duas vezes. Após isso, foram feitos os moldes e realizados os ensaios de resistência à compressão e resistência à tração na flexão, para testar a viabilidade técnica. Atingiu-se a resistência de 25,67 MPa no ensaio de compressão para o concreto padrão e a resistência de 24,53 MPa na proporção de 10% para o ensaio de compressão. Para o ensaio de tração na flexão, a resistência atingida foi de 5,19 MPa para concreto padrão e de 3,81 MPa para a proporção de 30%. Sendo assim, sua aplicação como concreto não estrutural é possível.

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“…There is a paucity of studies in the literature that comprehends the reuse or recycling of PCBs in mortar and concrete. Alagusankareswari et al [18] evaluated the use of PCB ground residue in concrete and obtained a product with a slightly lower compressive and tensile strength than the reference sample. Premur et al [19] also used the granular residue of PCBs as a partial substitute for sand in concrete and obtained lower compressive strength results than the reference sample.…”

Section: Introductionmentioning

confidence: 99%

Reuse of printed circuit boards substrate in the production of mortars

Ferrari¹,

Silva²,

Louzada³

et al. 2022

Tecnol. Metal. Mater. Min.

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Recycling electronic waste is one of the main environmental challenges faced by society today. In this sense, the purpose of this study is to evaluate the effect of using the residue of printed circuit boards (PCB) as a substitute for sand in mortars. The boards were taken from discarded electronic equipment and, to obtain the granular material, the boards, free of their components, were crushed. The residue obtained was sieved and separated into four granulometric ranges: # 1.2 mm; # 0.6 mm; # 0.3 mm and # 0.15 mm. Mortars were produced with partial replacement of 5% and 10% of the sand with the equivalent volume of residue in each of the size ranges, in addition to a reference mortar, without residue. For the characterization of the mortars, compressive strength, water absorption, percentage of voids and density tests were performed, in addition to analysis by scanning electron microscopy and environmental, leaching and solubilization, analyses. In general, the properties of the mortars, with the incorporation of the PCB residue, were not affected by the introduction of the residue, making its use feasible. However, as it is classified as non-inert in environmental analysis it is necessary to control its final disposal.

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An Experimental Study on E-Waste Concrete

Cited by 32 publications

References 5 publications

Performance Evaluation of Plastic Concrete Modified with E-Waste Plastic as a Partial Replacement of Coarse Aggregate

Performance Evaluation of Plastic Concrete Modified with E-Waste Plastic as a Partial Replacement of Coarse Aggregate

Avaliação Das Propriedades Mecânicas De Resistência À Compressão E À Flexão Do Concreto Com Substituição Parcial De Placa De Circuito Impresso No Agregado Graúdo Em Até 30%

Reuse of printed circuit boards substrate in the production of mortars

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