Recycling of glass waste into foam glass boards: A comparison of cradle-to-gate life cycles of boards with different foaming agents

Silva, Robson Couto da; Puglieri, Fábio Neves; Chiroli, Daiane Maria De Genaro; Bartmeyer, Guilherme Antonio; Kubaski, Evaldo Toniolo; Tebcherani, S. M.

doi:10.1016/j.scitotenv.2021.145276

Cited by 41 publications

(14 citation statements)

References 70 publications

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“…13 As an example, in 2017, 14 million tons of glass waste were produced in the European Union and 11.38 million tons in the United States. 14,15 In the United States, the cost to send the glass packaging waste, for example, is about 40 dollars per ton. 16 Another example is Japan, a world reference in solid waste management, which in 2018 spent approximately 18.9 billion dollars to dispose of 42.7 million tons of municipal solid waste, for glass waste the cost is approximately 510 dollars per ton of waste disposed of in landfill.…”

Section: Methods Of Characterizationmentioning

confidence: 99%

“…Flat glass is an expensive product in some countries, but throughout its manufacturing processing, waste is generated in the form of mud, which must be discarded obligatorily in landfills, being classified as waste 13 . As an example, in 2017, 14 million tons of glass waste were produced in the European Union and 11.38 million tons in the United States 14,15 . In the United States, the cost to send the glass packaging waste, for example, is about 40 dollars per ton 16 .…”

Section: Introductionmentioning

confidence: 99%

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Circular economy and durability in geopolymers ceramics pieces obtained from glass polishing waste

Azevedo¹,

Marvila²,

Oliveira³

et al. 2021

Int J Applied Ceramic Tech

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The development of new building materials based on alkaline activation technology is very promising, mainly linked to products that need significant technological properties and durability due to their adverse service conditions and environmental exposure. The objective of this research was to evaluate the development of a circular economy within the scope of durability of ceramic pieces incorporating glass polishing waste aimed at the production of roof tiles, obtained by the geopolymerization process. Two methodologies to evaluate the sample's durability were studied: wetting and drying cycles; and exposure to salt spray; both simulating conditions that tiles typically face in normal conditions. Prismatic specimens were made with an alkaline solution/(metakaolin + waste) ratio = 0.26; a SiO2/Al2O3 molar ratio = 3.5, 4, and 4.5; and with ambient and thermal cure at 7 days. Samples were evaluated in their mechanical strength, mass loss, and water absorption. Results showed that the SiO2/Al2O3 = 4.0 ratio with thermal curing had the best behavior in aggressive conditions, and therefore, this formulation can be used for the production of tiles.

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Section: Methods Of Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Circular economy and durability in geopolymers ceramics pieces obtained from glass polishing waste

Azevedo¹,

Marvila²,

Oliveira³

et al. 2021

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…Although pure chemicals were used in this work, these findings may guide or be referred to for future related foam glass manufacturing using recycling glass wastes. For instance, with X-ray fluorescence analyses [ 8 , 24 , 25 ], we can roughly determine whether a glass waste mixture has a stochiometric ratio close to the preferred ratio of pure chemical raw mixtures. Furthermore, systematic approaches for preparing low-cost and high-performance foam glass materials remain scarce, owing to the lack of a fundamental understanding of the structure–property–process relationships at the molecular level, despite decades of efforts.…”

Section: Discussionmentioning

confidence: 99%

The Impact of Foaming Effect on the Physical and Mechanical Properties of Foam Glasses with Molecular-Level Insights

Zhai

Zhu

et al. 2022

Molecules

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Foaming effect strongly impacts the physical and mechanical properties of foam glass materials, but an understanding of its mechanism especially at the molecular level is still limited. In this study, the foaming effects of dextrin, a mixture of dextrin and carbon, and different carbon allotropes are investigated with respect to surface morphology as well as physical and mechanical properties, in which 1 wt.% carbon black is identified as an optimal choice for a well-balanced material property. More importantly, the different foaming effects are elucidated by all-atomistic molecular dynamics simulations with molecular-level insights into the structure–property relationships. The results show that smaller pores and more uniform pore structure benefit the mechanical properties of the foam glass samples. The foam glass samples show excellent chemical and thermal stability with 1 wt.% carbon as the foaming agent. Furthermore, the foaming effects of CaSO4 and Na2HPO4 are investigated, which both create more uniform pore structures. This work may inspire more systematic approaches to control foaming effect for customized engineering needs by establishing molecular-level structure–property–process relationships, thereby, leading to efficient production of foam glass materials with desired foaming effects.

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“…To overcome these difficulties and start filling these gaps, research is being developed to consider the application of 3R principle (reduce, reuse and recycle) at various stages of the construction process. Have been found many strategies regarding reduction of resources and of wastes (first R), between them: modelling and numerical simulations; life cycle assessment (LCA) and cradle-to-cradle analysis; propose of software to manage the life cycle of construction (Cristiano et al, 2021; da Silva et al, 2021; NoParast et al, 2021 ) . The feasibility of reusing resources and waste (second R) in the production of new materials has also been demonstrated in recent studies (Rakhshan et al, 2021; Simón et al, 2021; Suárez-Macías et al, 2021a, 2021b; Zhang et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Circular economy in Brazilian construction industry: Current scenario, challenges and opportunities

et al. 2021

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The effective implantation of the circular economy (CE) presents a great challenge to the industrial sectors, mostly in those of greater environmental impact, such as construction industry. In Brazil, this industry has been growing over the last 20 years; however, such growth was based on an extractivist economy without any consideration to the end of its products lifespan. Only in 2017, 45 million tonnes of construction and demolition waste were generated in the country. This paper presents the current context of public policies in the Brazilian construction industry and proposes initiatives to introduce principles of CE. An exploratory study was developed, and all the 45 references presented in Appendix A of the review paper of Benachio et al. were considered to draw new ideas. These ideas are related and compared to key points in Brazilian regulations. Twelve opportunities for the improvement are listed and organized by construction stages (planning and design, materials manufacturing, construction processes, use and demolition). The ones related to design and planning using Green building information modelling, and materials manufacturing with recycled waste are highlighted due to the existing actions, standards, and Federal legislation. It was found that some sectors and the government already have actions related to CE (based on the 3R principle), but still there are several initiatives needed for its effective implementation in the Brazilian construction industry.

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Recycling of glass waste into foam glass boards: A comparison of cradle-to-gate life cycles of boards with different foaming agents

Cited by 41 publications

References 70 publications

Circular economy and durability in geopolymers ceramics pieces obtained from glass polishing waste

Circular economy and durability in geopolymers ceramics pieces obtained from glass polishing waste

The Impact of Foaming Effect on the Physical and Mechanical Properties of Foam Glasses with Molecular-Level Insights

Circular economy in Brazilian construction industry: Current scenario, challenges and opportunities

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