Life cycle assessment of asphalt variants in infrastructures: The case of lignin in Australian road pavements

Tokede, Olubukola; Whittaker, Ashley; Mankaa, Rose Nangah; Traverso, Marzia

doi:10.1016/j.istruc.2020.02.026

Cited by 45 publications

(26 citation statements)

References 34 publications

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“…The price of asphalt has been rising rapidly in recent years because of the increasing and unstable price of crude oil. In 2018, the cost of bitumen in Australia (Tokede et al, 2020) has been close to $470 per tonne, while commercial lignin cannot be specified at a specific price because its cost assessment needs to involve factors such as extraction technology, process, and paper mill equipment costs, and the cost of lignin is estimated by other studies (Dessbesell et al, 2018) to be about $700 per tonne. Therefore, at present, lignin replaces part of the asphalt in cost loss, but with the further increase in the cost of asphalt, in the future, if the demand for lignin increases, driving down the cost of lignin extraction, lignin is expected to become a popular asphalt replacement material.…”

Section: Life Cycle Assessment About Using Lignin In Flexible Pavementmentioning

confidence: 99%

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Review on Applications of Lignin in Pavement Engineering: A Recent Survey

et al. 2022

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Lignin is the second-largest plant polymer on Earth after cellulose. About 98% of lignin produced in the papermaking and pulping industry is used for combustion heating or power generation. Less than 2% of lignin is used in more valuable fields, mainly in the formulation of dispersants, adhesives, and surfactants. Asphalt is one of the most important materials in pavement engineering. It is a dark brown complex mixture composed of hydrocarbons with different molecular weights and their non-metallic derivatives. Because the chemical structure of lignin is similar to that of asphalt, it is a carbon-based hydrocarbon material. More researchers studied the application of lignin in pavement engineering. In this paper, the structure, application, and extraction technology of lignin were summarized. This is a review article describing the different applications of lignin in pavement engineering and exploring the prospects of the application. There are three main types of pavement materials that can be used for lignin in pavement engineering, which are asphalt, asphalt mixture, and roadbed soil. In asphalt, lignin can be used as a modifier, extender, emulsifier, antioxidant, and coupling agent. In asphalt mixtures, lignin can be used as an additive. In road base soils, lignin can be used as a soil stabilizer. Furthermore, the article analyzed the application effects of lignin from the life cycle assessment. The conclusions suggest that lignin-modified asphalt exhibits more viscosity and hardness, and its high-temperature resistance and rutting resistance can be significantly improved compared with conventional asphalt. In addition, some lignin-modified asphalt binders exhibit reduced low-temperature crack resistance and fatigue resistance, which can be adjusted and selected according to the climate change in different regions. The performance of lignin as an asphalt mixture additive and asphalt extender has been proved to be feasible. Lignin can also produce good mechanical properties as well as environmental benefits as a soil stabilizer. In summary, lignin plays an important role in asphalt pavement and roadbed soil, and it is likely to be a development trend in the future due to its environmental friendliness and low cost. More research is needed to generalize the application of lignin in pavement engineering.

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Section: Life Cycle Assessment About Using Lignin In Flexible Pavementmentioning

confidence: 99%

“…Overall, lignin has significant benefits in pavement engineering. The life cycle assessment on the use of lignin/biooil in asphalt was carried out (Zhang et al, 2020c;Tokede et al, 2020). Using lignin to replace part of crude oil asphalt in asphalt production can reduce carbon dioxide emissions.…”

Section: Effect Of Lignin In Pavement Engineeringmentioning

confidence: 99%

Review on Applications of Lignin in Pavement Engineering: A Recent Survey

et al. 2022

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“…A road pavement is a layered structure that is generally sub-base, sub-base, base and surface course. As the layers underlying the surface course generally do not exert much influence on design processes, one of the main ways of classifying pavement is associated with the material that makes up this layer, which can be asphalt concrete and conventional concrete mixes [9,10]. In Brazil, 65% of freight transport and 95% of passenger transport is carried out by road mode.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, it is necessary to point out that asphalt mixtures are usually composed of aggregates, fillers, binders, and sometimes additives. Approximately 85% to 95% of the mix is composed of aggregate and fillers, the rest is filled by asphalt [9,10,12].…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Assessment in Road Pavement Infrastructures: A Review

Gouveia

Donato²,

Silva³

2022

Civ Eng J

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The need to meet society's demands for road infrastructure while minimizing the resulting environmental impacts is a source of great complications. In this context, Life Cycle Assessment (LCA) can be useful by applying a set of rules and processes for the environmental assessment of projects. The objectives of this study were to present the main environmental impact categories associated with emissions from the life cycle phases of a road pavement and how to estimate them. In addition, this paper provides examples of LCA applications on these infrastructures. In view of the evolution of research on LCA, a compilation was made on: the main categories of environmental impact associated with emissions; phases of life cycle impact assessment; and procedures and methods of impact estimation. The impact categories presented are associated with climate change, acidification, ozone depletion, tropospheric ozone formation, eutrophication, and Particulate Matter Formation. Not all methods are able to generate indicators for all types of impact and, depending on the type of materials and services that make up the inventory of the alternatives analyzed, one specific method may be more appropriate to use. The conclusions are that for each environmental impact, the results depend on the input parameters, such as energy flows and materials, along with their processing by methods of life cycle impact assessment. Besides this, despite the great diversity of the databases for the steps of life cycle assessment of roadway pavement, there is a general consensus about the nature of these steps. Doi: 10.28991/CEJ-2022-08-06-015 Full Text: PDF

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“…Concerning the LCAs that look at the products using lignin, their aim was often twofold: identifying the environmental hotspots in the production processes and evaluating possible environmental advantages in comparison with petrochemical products. Among the investigated lignin-based products, there were adhesives especially for wood fiberboards and laminates [115,131,132], phenol and propylene [133], transportation fuels [106], asphalt [134], nanoparticles [135], polyurethane foams [136], fertilizers [8], vanillin [137], adipic acid [138,139], catechols [140] and carbon fibers reinforced polymers [141].…”

Section: Product Systemsmentioning

confidence: 99%

Analyzing the environmental impact of innovative bio-based products from multifunctional systems

Moretti¹

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Green deal looks at bioeconomy as a part of multiple policies related to renewable energy and chemicals and materials' sustainability and circularity, and as a way to address the Paris Agreement's climate objectives and meet the Sustainable Development Goals (SDGs) set by the United Nations [2,14,15]. Bioeconomy's present economic volume is currently difficult to estimate due to a lack of statistics on emerging bio-based products and the fact that a broad range of industries is partially bio-based [16]. However, the European Commission-Joint Research Center has made a first attempt to estimate the value-added generated by bioeconomy based on 2017 data. In the EU-27 in 2017, the bio-based part of the THE MULTIFUNCTIONALITY UNCERTAINTY IN LCAS OF BIO-BASED BY-PRODUCTSAs mentioned in section 1.2, among the main reasons for interest in bio-based products produced from bio-based "residues", there is the expected lower climate CHAPTERReview of Life Cycle Assessments of lignin and derived products: lessons learned

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Life cycle assessment of asphalt variants in infrastructures: The case of lignin in Australian road pavements

Cited by 45 publications

References 34 publications

Review on Applications of Lignin in Pavement Engineering: A Recent Survey

Review on Applications of Lignin in Pavement Engineering: A Recent Survey

Life Cycle Assessment in Road Pavement Infrastructures: A Review

Analyzing the environmental impact of innovative bio-based products from multifunctional systems

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