Pavement Life Cycle Assessment Workshop, May 5–7, 2010 in Davis, California, USA

Harvey, John T.; Kendall, Alissa; Santero, Nick; Dam, Thomas Van; Lee, In Sung; Wang, Ting

doi:10.1007/s11367-011-0334-2

Cited by 9 publications

(3 citation statements)

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“…All the significant environmental processes contributing towards global warming were analyzed individually; then, all different flows were aggregated, expressing the GWP impact in terms of kg of carbon dioxide equivalents (kg CO 2 -eq). This common unit was used to compare the emissions of different GHGs that contribute toward GWP in a different way; this is because each gas has different radiative properties and lifetime in the atmosphere [32]. The GHGs assessed in this work were carbon dioxide (CO 2 ), nitrous oxide (N 2 O), and methane (CH 4 ).…”

Section: Assessment Of Greenhouse Gas Emissionsmentioning

confidence: 99%

CO2 Impact Analysis for Road Embankment Construction: Comparison of Lignin and Lime Soil Stabilization Treatments

et al. 2023

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The last decade has witnessed increased attention toward products, services, and works with reduced environmental impacts. In the field of road construction, the use of alternative materials, wastes, or by-products obtained from industries is attracting considerable interest. The Life Cycle Assessment (LCA) is a powerful project-level tool that allows the assessment of the environmental impacts of a road infrastructure, from raw materials production to end of life phase. In this study, the environmental impacts (in terms of global warming potential-GWP) of an embankment construction project are investigated by a cradle-to-gate approach. The analysis focuses on all the processes involved in the construction of an embankment section, from the base to the preparation of the pavement formation level. The results are provided for two different road types and two different stabilization methods, including the use of lignin and lime. All processes that contribute towards global warming are investigated and described in detail. The most important finding of the LCA, in terms of GWP, is that the production of materials is the phase that contributes the significant share of the total environmental impact (more than 90%) for all scenarios. The lowest production-related emissions can be recorded for the scenarios involving lignin treatment for the stabilization of the embankment body. Furthermore, the percentage increase in GWP ranges between 51% and 39% for transportation activities and 10–11% for construction activities, comparing the scenarios including lime stabilization with the scenarios involving lignin treatment.

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Section: Assessment Of Greenhouse Gas Emissionsmentioning

confidence: 99%

CO2 Impact Analysis for Road Embankment Construction: Comparison of Lignin and Lime Soil Stabilization Treatments

et al. 2023

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“…Even including the maintenance and operation of roads, as well as the disposal or reuse of roads at the end of their life cycle. Baran dica et al [6] evaluated greenhouse gases in road construction from a full lifecycle perspective and analyzed four construction projects in Spain.Specifically, the full life cycle assessment of road surfaces has always been a focus of attention for many researchers [7][8][9]. In addition, UCPRC has been committed to recommending common practices of LCA for pavement, and has proposed road life cycle assessment guidelines for practitioners, including a road life cycle assessment framework, and some recommended data and models that have been used in California and other states in the United States [10.…”

Section: Introductionmentioning

confidence: 99%

Carbon emission monitoring method and empirical study of expressway construction period

Wang,

Yu,

Hai

et al. 2024

E3S Web Conf.

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In order to improve the ability of carbon emission management in expressway construction, the precision management of carbon emission is realized. In this paper, the construction period carbon emission monitoring method is proposed, the carbon emission monitoring scope is defined, and the carbon emission monitoring content and method are determined. On this basis, taking the Zhangjinggao Yangtze River Bridge project as an example, analyze the monitoring data of construction carbon emissions. The results of the study showed that from July to December, the total carbon emission from construction was 668.30t. Among them, the carbon emissions of electricity, machinery and equipment, labor and construction water accounted for 47.02%, 40.68%, 11.99% and 0.31% of the total carbon emissions, respectively. In addition, the unit time carbon emission of the excavator is 12.12kg/h; The unit time carbon emission of the truck crane is 1.35kg/h.

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“…LCSA builds on existing life cycle assessment (LCA) and life cycle cost assessment (LCCA) frameworks-two methods with long histories and broad acceptance in civil engineering (Harvey et al, 2011;Cabeza et al, 2014;Parrish and Chester, 2014). Traditional LCSAs of civil infrastructure projects typically assess only environmental and economic impacts, excluding social impacts such as human rights, working conditions, or impacts on cultural heritage (Jørgensen et al, 2007;United Nations Environment Programme, 2020).…”

Section: Introductionmentioning

confidence: 99%

Sustainability of bio-mediated and bio-inspired ground improvement techniques for geologic hazard mitigation: a systematic literature review

Faruqi,

Hall,

Kendall

2023

Front. Earth Sci.

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This is a systematic literature review of quantitative sustainability assessments, focusing on life cycle sustainability assessment (LCSA), of bio-mediated and bio-inspired ground improvement technologies applied to geologic hazard mitigation. The aims of the systematic review are to 1) compare the sustainability of various ground improvement techniques and, 2) to evaluate the rigor and consistency of sustainability assessment methods applied to these techniques. The literature review considers studies identified through keyword searches of bibliographic databases. After selection criteria were applied to ensure identified articles were within scope, a total of 8 articles were found which assessed bio-mediated and bio-inspired ground improvement technologies. The technologies represented in the literature include enzyme induced carbonate precipitation (EICP), microbially induced carbonate precipitation (MICP), and microbially induced desaturation and carbonate precipitation (MIDP). While sustainability is typically conceived to include environmental, economic and social impacts, most studies examined only life cycle environmental impacts, three included life cycle cost accounting, and none included social impacts. Analysis of the studies’ system boundaries show inconsistencies across studies, making comparison of results inaccurate. The most common environmental impact categories included in the identified studies are global warming and eutrophication. Raw materials production and field emissions from the biogeochemical reactions that drive the technologies are the largest contributors to these impacts. Based on the review, it is clear that a set of LCSA guidelines is needed to produce high-quality LCSAs that can be used in comparative assessments and to confidently identify processes where the impacts of bio-mediated and bioinspired technologies can be reduced.

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Pavement Life Cycle Assessment Workshop, May 5–7, 2010 in Davis, California, USA

Cited by 9 publications

References 0 publications

CO2 Impact Analysis for Road Embankment Construction: Comparison of Lignin and Lime Soil Stabilization Treatments

CO2 Impact Analysis for Road Embankment Construction: Comparison of Lignin and Lime Soil Stabilization Treatments

Carbon emission monitoring method and empirical study of expressway construction period

Sustainability of bio-mediated and bio-inspired ground improvement techniques for geologic hazard mitigation: a systematic literature review

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