Use of different forms of waste plastic in concrete – a review

Sharma, Raju; Bansal, Prem Pal

doi:10.1016/j.jclepro.2015.08.042

Cited by 346 publications

(171 citation statements)

References 37 publications

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“…However, there are demonstrated critical environmental impact challenges associated with the use of plastics. These include, for instance, high electricity consumption during the injection moulding process (Elduque, Elduque, Javierre, Fernández, & Santolaria, 2015) and waste management, reuse and recycling challenges (Kreiger et al, 2014;Martínez Urreaga et al, 2015;Sharma & Bansal, 2016). In Scenario 1, because the analysis focused on the conventional business-as-usual case, we also considered the already employed sustainability practices from the conventional supply chain.…”

Section: The Case and Scenarios Consideredmentioning

confidence: 99%

How supply chain choices affect the life cycle impacts of medical products

Gabriel

Bortsie-Aryee

Apparicio-Farrell

et al. 2018

Journal of Cleaner Production

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The natural resource based view (NRBV) of organisations suggests that there are two main models used by businesses to achieve short-term sustainability outcomes. They are the product stewardship and pollution prevention models. Here is the case of a New York-based wholesaler of medical supplies. The business aims to develop a more environmentally sustainable supply chain for one of its products -an emesis basin. The emesis basin is currently only offered in high-density polyethylene (HDPE) plastic, which has negative effects on the natural environment. This study aimed to assess how the focus of the business' new business model might affect the overall life cycle impacts of this product. To achieve this, we compared the environmental impacts of the conventional product (Scenario 1-an HDPE basin) with equivalent products supplied via pollution prevention (Scenario 2 -a bioplastic basin) and product stewardship (Scenario 3 -green supply chain management and improvements) scenarios, as well as a combination scenario (Scenario 4). The results show that, in line with expectations, the pollution prevention option -switching to a bioplastic product -has the lowest environmental impacts. Unexpectedly though, the product stewardship option had a greater impact on the natural environment than the conventional HDPE, business-as-usual option. We suggest there may greater environmental gains to be obtained by focusing on one's core business, than by extending influence to the entire supply chain. KEYWORDSNatural resource-based view (NRBV); Life Cycle Assessment (LCA); sustainable supply chains; medical supply sector HIGHLIGHTS  Four scenarios comparing conventional and bio-plastics considered  Bioplastic product has lowest environmental impact (pollution prevention scenario)  Supply chain changes (product stewardship) have higher impact due to transport fuels  There are benefits to focusing on core business over supply chain integration  We support deeper inclusion of medical supply industry in sustainability discussion Word Count: 8,082ACCEPTED MANUSCRIPT 2

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Section: The Case and Scenarios Consideredmentioning

confidence: 99%

How supply chain choices affect the life cycle impacts of medical products

Gabriel

Bortsie-Aryee

Apparicio-Farrell

et al. 2018

Journal of Cleaner Production

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“…A simple mathematical model to discern and comprehend the material inflow and outflow of complex successive plastics recoveries and recycling, within the closed-loop recycling systems present in two countries, India and Bangladesh was developed by Haque et al(2000). In terms of green operations, a few case studies have mentioned the use of plastics and bottle recycling (Ferreira et al, 2014;Sharma and Bansal, 2016;Tibben and Lembke, 2002). Other studies have explained the benefits of including plastics recycling during design or post use stage.…”

Section: Literature Review On Modeling Plastic Recyclingmentioning

confidence: 99%

Integrated optimization model and methodology for plastics recycling: Indian empirical evidence

Sheriff

Subramanian

Rahman

et al. 2017

Journal of Cleaner Production

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Research Highlights• We develop a decision model to integrate three decisions pertaining to location, allocation, and routing of different varieties of recycled plastics.• We validate the model using data retrieved from a case study in India using a conventional decomposed modelling approach.• Our integrated model reduces over ten percent of total recycling costs for both single and multiple products in the Indian context.• Managers need to cluster the customers based on the facility location and offer attractive incentives to reduce cost and increase benefits. Integrated optimization model and methodology for plastics recycling: Indian empirical evidence AbstractWe develop a decision model to integrate three decisions pertaining to location, allocation, and routing of different varieties of recycled plastics. Our decision model allocates recycling collection points to the available centralized return center based on its capacity and ensures similar allocation to all facilities via optimal routing for trucks. The study addresses several pertinent questions such as how to deal with higher collection cost, how to develop a model that jointly considers operational cost reduction along with the achievement of higher environmental benefits, how to reduce sub optimization which is quite common when using standalone decision models, and what are the feasible ways to increase the utilization of collection facilities. We validate the model using data retrieved from a case study in India using a conventional decomposed modelling approach. Our findings demonstrate that the proposed integrated model reduces over ten percent of total recycling costs for both single and multiple products. The results also suggest managers to reduce variances in product quality levels in order to achieve substantial total costs reduction. In addition, to increase the plastic recycling returns and reduce the operational cost, managers need to cluster the customers based on the facility location and offer attractive incentives.

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“…Essas partículas de PET podem prejudicar a aderência entre a pasta cimentícia e os agregados, provocando diminuição do desempenho mecânico dos compósitos (SHARMA;BANSAL, 2016). Ainda, segundo Sharma e Bansal (2016), a maioria dos estudos que trabalham com compósitos cimentícios observou que a adição de polímeros reduz a resistência à compressão.…”

Section: Introductionunclassified

Placas cimentícias e pavers com incorporação de rejeitos da coleta seletiva do município de Blumenau, SC

et al. 2018

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Resumo Analisou-se o desempenho físico-mecânico de placas e pavers com incorporação de rejeitos da coleta seletiva do município de Blumenau, SC. Tais rejeitos são compostos de orgânicos, polímeros, papéis, vidro e têxteis, que foram reduzidos de tamanho (2,4 mm a 19,0 mm) e substituíram o agregado miúdo natural nos percentuais de 5%, 10%, 20% e 30%. Para o compósito no estado fresco verificou-se o índice de consistência, e no estado endurecido determinaram-se massa específica aparente, absorção de água e resistência à compressão. As placas foram submetidas ao ensaio de resistência à flexão e à análise de microscopia eletrônica de varredura. A massa específica aparente das placas variou de 0,8 a 1,6 g.cm-3, e dos pavers, de 1,78 a 1,84 g.cm-3. Para menores quantidades de rejeitos incorporados, os dois materiais apresentaram índices de absorção de água que satisfazem as exigências de normas correlatas. As placas apresentaram valores de resistência à compressão que variaram de 4,7 MPa a 14,6 MPa. Na flexão, os valores atingidos foram de 0,1 MPa a 1,8 MPa. Os pavers alcançaram valores de resistência à compressão entre 10,8 MPa e 18,7 MPa. Pavers com 5% de incorporação de agregados de rejeitos seriam passíveis de ser aplicáveis em calçadas e meios-fios desde que estudos futuros garantam sua durabilidade.

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Use of different forms of waste plastic in concrete – a review

Cited by 346 publications

References 37 publications

How supply chain choices affect the life cycle impacts of medical products

How supply chain choices affect the life cycle impacts of medical products

Integrated optimization model and methodology for plastics recycling: Indian empirical evidence

Placas cimentícias e pavers com incorporação de rejeitos da coleta seletiva do município de Blumenau, SC

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