Life Cycle Assessment of Representative Swiss Road Pavements for National Roads with an Accompanying Life Cycle Cost Analysis

Gschösser, Florian; Wallbaum, Holger

doi:10.1021/es400309e

Cited by 20 publications

(18 citation statements)

References 9 publications

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“…Currently, high amounts of plastic waste do not follow for recycling processes, nor are they reused, and their life cycle ends by incineration or in a landfill [4]. Thus, the use of these waste polymers for bitumen modification, instead of virgin polymers, can be seen as a sustainable solution, both environmentally and economically [5].…”

Section: Introductionmentioning

confidence: 99%

Using waste polymers as a reliable alternative for asphalt binder modification – Performance and morphological assessment

Costa

Silva

Peralta

et al. 2019

Construction and Building Materials

102

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h i g h l i g h t sRecycled polymers were studied as alternative to virgin SBS for binder modification. EVA modified binder showed similar performance to the control SBS modified binder. HDPE improved binder's high-temperature performance but decreased elastic recovery. Polymer modification enhanced binder properties, except storage stability. Waste plastics are an excellent alternative for more ecologic binder modification.

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Section: Introductionmentioning

confidence: 99%

Using waste polymers as a reliable alternative for asphalt binder modification – Performance and morphological assessment

Costa

Silva

Peralta

et al. 2019

Construction and Building Materials

102

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“…The relevant input and output data that the producer could not provide were obtained from the literature [13,26,29]. Some variables, such as the specific heat coefficient of materials and latent heat of vaporization of water of Equation (1) [24,25], were obtained from Santos et al [25].…”

Section: Life Cycle Inventory (Lci)mentioning

confidence: 99%

Determining the Environmental Potentials of Urban Pavements by Applying the Cradle-to-Cradle LCA Approach for a Road Network of a Midscale German City

et al. 2021

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This study used a cradle-to-cradle Life Cycle Assessment (LCA) approach to evaluate the environmental potentials of urban pavements. For this purpose, the urban road network of the City of Münster (Germany) was selected as the case study, and comprehensive data for several phases were collected. The entire road network is composed of flexible pavements designed according to specific traffic loads and consists of main roads (MRs), main access roads (MARs), and residential roads (RSDTs). Asphalt materials, pavement structures, and maintenance strategies are predefined for each type of road and are referred to as “traditional” herein. Some pavement structures have two possible maintenance strategies, denoted by “A” and “B”, with distinguished periods of intervention. To evaluate the impact of using recycled materials, we considered alternative pavement structures composed of asphalt materials containing a greater amount of reclaimed asphalt pavement (RAP). The study was carried out considering analysis periods of 20, 50, 80, and 100 years and using two indicators: non-renewable cumulative energy demand (nr-CED) and global warming potential (GWP). The results show that the use of higher amounts of RAP can mitigate negative environmental impacts and that certain structures and maintenance strategies potentially enhance the environmental performance of road pavements. This article suggests initiatives that will facilitate the decision-making process of city administrators to achieve more sustainable road pavement constructions and provides an essential dataset inventory to support future environmental assessment studies, particularly for European cities.

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“…This variation includes the analysis period (AP) (30 to 75 years for new construction and reconstruction), traffic volumes (e.g., annual average daily traffic from slightly over 10,000 to over 100,000), metric of choice to measure traffic (qualitative descriptions, annual average daily traffic, annual average daily truck traffic, equivalent single axle loads), and climatic locations. The pervasiveness of pavement LCCAs that vary measurably in scope and context is a testament to the complexity of pavement LCCAs, which explains the focus on methodological and characterization issues rather than on implementing a model in a range of contexts (13,18,20).…”

Section: Scope and Context Across Previous Pavement Lcca Studiesmentioning

confidence: 99%

Probabilistic Life-Cycle Cost Analysis of Pavements

Swei

Gregory

Kirchain

2015

Transportation Research Record: Journal of the Transportation R

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Significant research has been conducted over the past decade to enhance probabilistic pavement life-cycle cost analysis (LCCA) models, yet the drawing of broad conclusions from different studies is difficult because of the significant variation in scope and sources of uncertainty. Specifically, these two issues make it difficult to infer from existing research (a) which parameters are significant contributors to uncertainty for a specific context and (b) how context affects the analysis. The goal of this research was to address this problem by implementing an LCCA model in a range of scenarios that vary in location, traffic conditions, design life (e.g., year to first rehabilitation), analysis period, maintenance schedule, and discount rate. Results from the analysis indicated that, in relation to the drivers of variation, uncertainty about initial cost was the principal driver of variation across the case studies. Other parameters, such as the predicted performance of pavement over time, could also be important drivers of variation and in particular a matter for lower-volume roads, for which thinner pavement designs are used. In terms of contextual decisions, some decisions, such as whether to use mechanistic–empirical pavement designs instead of the paving design manual of a state department of transportation to determine future maintenance events, seem to have a larger impact than do others. For example, analysis period and design life, though important, affect the final results significantly less, although in some instances they can play a role in differentiating between alternative designs.

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Life Cycle Assessment of Representative Swiss Road Pavements for National Roads with an Accompanying Life Cycle Cost Analysis

Cited by 20 publications

References 9 publications

Using waste polymers as a reliable alternative for asphalt binder modification – Performance and morphological assessment

Using waste polymers as a reliable alternative for asphalt binder modification – Performance and morphological assessment

Determining the Environmental Potentials of Urban Pavements by Applying the Cradle-to-Cradle LCA Approach for a Road Network of a Midscale German City

Probabilistic Life-Cycle Cost Analysis of Pavements

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