Investigating the environmental impacts and engineering performance of road asphalt pavement mixtures made up of jet grouting waste and reclaimed asphalt pavement

Oreto, Cristina; Veropalumbo, Rosa; Viscione, Nunzio; Biancardo, Salvatore Antonio; Russo, Francesca

doi:10.1016/j.envres.2021.111277

Cited by 46 publications

(20 citation statements)

References 41 publications

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“…SWM was then altered to the waste management hierarchy (WMH), the principal primacy in CDWM [34]. In other words, the SWM was evolved later inside the WMH, which is considered the most applicable strategy for managing CDW [16,35,36]. WMH includes reduce, reuse, recycle (3Rs) strategies, and safely dispose of waste in order of preference from the most to the least favorable strategies.…”

Section: Sustainability Concept In Cdwmmentioning

confidence: 99%

A Synthesis of Express Analytic Hierarchy Process (EAHP) and Partial Least Squares-Structural Equations Modeling (PLS-SEM) for Sustainable Construction and Demolition Waste Management Assessment: The Case of Malaysia

Ghafourian¹,

Kabirifar

Mahdiyar

et al. 2021

Recycling

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Construction and demolition waste (CDW), as the main consequence of construction and demolition (C&D) activities, has severely affected our sustainability needs. However, construction and demolition waste management (CDWM) lacks the integration of sustainability concepts. Thus, there is a great need to include sustainability dimensions in CDWM to reach sustainable construction and demolition waste management (SCDWM). This study aims at empirically investigating SCDWM by analyzing the impacts of factors that contribute to sustainability aspects of CDWM on waste management hierarchy (WMH), including reduce, reuse, recycle, and disposal strategies. According to the literature, 26 factors were initially identified and grouped under four categories, namely environmental, economic, social, and administrative, that contribute to sustainability aspects of CDWM. Subsequently, a pilot test was performed to assess the significance and applicability of these factors in the Malaysian construction industry by implementing the express analytic hierarchy process (EAHP). Then, a questionnaire survey was performed to collect data from 132 construction companies involved in CDWM. Partial least squares-structural equation modeling (PLS-SEM) was used to test the hypothetical relationships by applying SmartPLS software. Results demonstrated that the economic aspect of CDWM (main category) and “public environment contamination due to illegal waste dumping” (sub-category) were the most influential factor in SCDWM in Malaysia.

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Section: Sustainability Concept In Cdwmmentioning

confidence: 99%

A Synthesis of Express Analytic Hierarchy Process (EAHP) and Partial Least Squares-Structural Equations Modeling (PLS-SEM) for Sustainable Construction and Demolition Waste Management Assessment: The Case of Malaysia

Ghafourian¹,

Kabirifar

Mahdiyar

et al. 2021

Recycling

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“…Several LCA analyses have been carried out on innovative road materials [28,29] and maintenance techniques [30,31] to estimate the environmental compatibility of previously eco-designed asphalt materials and compare them to traditional hot mix asphalt solutions. Some authors focused on the material production phases, highlighting that the increase of the amount of recycled material in the asphalt mixture most certainly entails a decrease in the environmental impacts [32].…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Assessment of Sustainable Asphalt Pavement Solutions Involving Recycled Aggregates and Polymers

et al. 2021

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The pursuit of sustainability in the field of road asphalt pavements calls for effective decision-making strategies, referring to both the technical and environmental sustainability of the solutions. This study aims to compare the life cycle impacts of several pavement solution alternatives involving, in the binder and base layers, some eco-designed, hot- and cold-produced asphalt mixtures made up of recycled aggregates in substitution for natural filler and commercial recycled polymer pellets for dry mixture modification. The first step focused on the technical and environmental compatibility assessment of the construction and demolition waste (CDW), jet grouting waste (JGW), fly ash (FA), and reclaimed asphalt pavement (RAP). Then, three non-traditional mixtures were designed for the binder layer and three for the base layer and characterized in terms of the stiffness modulus. Asphalt pavement design allowed for the definition of the functional units of Life Cycle Assessment (LCA), which was applied to all of the pavement configurations under analysis in a “from cradle to grave” approach. The LCA results showed that the best performance was reached for the solutions involving a cold, in-place recycled mixture made up of RAP and JGW in the base layer, which lowered all the impact category indicators by 31% on average compared to those of the traditional pavement solution. Further considerations highlighted that the combination of a cold base layer with a hot asphalt mixture made up of CDW or FA in the binder layer also maximized the service life of the pavement solution, providing the best synergistic effect.

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“…Other research works focused on developing a methodology that could identify the best alternative treatment by performing a multi-criteria decision analysis (MCDA) [57,58]. This strategy has been widely adopted to (a) determine the most suitable technology for reusing RAP in central plant hot recycling, hot in-place recycling, central plant cold recycling and cold in-place recycling applications [59]; (b) compare various asphalt mixtures based on their engineering performance and life cycle cost indicators [60], cost, environmental and social indicators of the life cycle [61] or engineering performance and service life [62].…”

Section: Introductionmentioning

confidence: 99%

A Practice for the Application of Waste in Road Asphalt Pavements in an Eco-Friendly Way

2021

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The integration of circular economy principles in the design of road pavements raises the problem of obtaining high-performance asphalt mixtures for reduction of waste and environmental pollution compared to traditional solutions. In this study, the base and binder layers of road asphalt pavements were prepared by using reclaimed asphalt pavement and construction and demolition waste as coarse aggregates, while jet grouting waste and fly ash served as fillers. A leaching test was performed for the marginal materials, after which the engineering performances of the designed asphalt mixtures were investigated through laboratory tests. A life cycle assessment methodology was applied to determine the life cycle impacts of one cubic meter of each asphalt solution. Next, a multi-criteria decision analysis (MCDA) was performed for the solutions suggested for the binder and base layers. Finally, a sensitivity analysis was conducted to identify the most suitable MCDA solutions by varying the weights for a total of 24 different weight configurations. The results of this work revealed that the solutions utilizing jet grouting waste (in particular, the hot asphalt mixture for the binder layer and cold asphalt mixture for the base layer) were preferred to other traditional and alternative solutions in most decision-making scenarios.

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Investigating the environmental impacts and engineering performance of road asphalt pavement mixtures made up of jet grouting waste and reclaimed asphalt pavement

Cited by 46 publications

References 41 publications

A Synthesis of Express Analytic Hierarchy Process (EAHP) and Partial Least Squares-Structural Equations Modeling (PLS-SEM) for Sustainable Construction and Demolition Waste Management Assessment: The Case of Malaysia

A Synthesis of Express Analytic Hierarchy Process (EAHP) and Partial Least Squares-Structural Equations Modeling (PLS-SEM) for Sustainable Construction and Demolition Waste Management Assessment: The Case of Malaysia

Life Cycle Assessment of Sustainable Asphalt Pavement Solutions Involving Recycled Aggregates and Polymers

A Practice for the Application of Waste in Road Asphalt Pavements in an Eco-Friendly Way

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