Evaluation of Social Environmental Efficiency on Recycling of Construction Sludges as Ground Materials

Inazumi, Shinya; Ohtsu, Hiroyasu; Isoda, Takayuki; Shigematsu, Yuji

doi:10.2208/jscejge.68.163

Cited by 5 publications

(8 citation statements)

References 2 publications

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“…In the evaluation and comparison based on environmental economic efficiency performed in this study, (2) shows the environmental cost element to which we pay special attention. We apply (2) to the manufacturing of virgin materials, manufacturing of recycled materials and disposal.…”

Section: Quantification Of Environmental Costmentioning

confidence: 99%

“…We apply (2) to the manufacturing of virgin materials, manufacturing of recycled materials and disposal. Each element in (2) indicates the unit price of unit construction work.…”

Section: Quantification Of Environmental Costmentioning

confidence: 99%

“…We apply (2) to the manufacturing of virgin materials, manufacturing of recycled materials and disposal. Each element in (2) indicates the unit price of unit construction work. Here, we refer to the results of the study of [7], [8] and other previous studies [2] for extraction of environmental cost elements.…”

Section: Quantification Of Environmental Costmentioning

confidence: 99%

“…Each element in (2) indicates the unit price of unit construction work. Here, we refer to the results of the study of [7], [8] and other previous studies [2] for extraction of environmental cost elements.…”

Section: Quantification Of Environmental Costmentioning

confidence: 99%

See 3 more Smart Citations

Environmental Accounting on Treatment and Reutilization of Construction Sludges in Geotechnical Engineering Fields

Inazumi

Ohtsu

Isoda

2012

geomate

Self Cite

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Section: Quantification Of Environmental Costmentioning

confidence: 99%

“…We apply (2) to the manufacturing of virgin materials, manufacturing of recycled materials and disposal. Each element in (2) indicates the unit price of unit construction work.…”

Section: Quantification Of Environmental Costmentioning

confidence: 99%

Section: Quantification Of Environmental Costmentioning

confidence: 99%

Section: Quantification Of Environmental Costmentioning

confidence: 99%

See 2 more Smart Citations

Environmental Accounting on Treatment and Reutilization of Construction Sludges in Geotechnical Engineering Fields

Inazumi

Ohtsu

Isoda

2012

geomate

Self Cite

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“…In the previous studies regarding construction waste, they examined the environmental impact assessment and environmental accounting approach to evaluate recycling of construction waste by environmental economics in which environmental load converted to environment cost in addition to direct cost is considered (Kunibe et al 2007; Inazumi et al 2012). This study focuses on the extension of construction schedules caused by process delay brought about from processing for recycling that is one of the obstacles for recycling of construction waste.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness evaluation on reuse of construction sludges considering uncertainties of environmental economics

Inazumi

Manabe

2016

JGS Special Publication

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In Japan, although the recycling of waste has been promoted, there may be various obstacles. This study focuses on construction waste, more specifically, construction sludge, which is less advanced in terms of recycling. Processing cost for materials recycled from construction sludge is higher compared to the cost of mining virgin materials. There are some additional difficulties including delays in schedules due to the time required for processing and the balance between supply and demand. Therefore, the benefit of recycling by adding the time factor to the evaluation model with consideration for cost and environmental load is quantitatively assessed. As a result, it is shown that the bottlenecks of construction sludge recycling are higher cost than the cost of mining of virgin materials, high heavy metal contents in the construction sludge, and delays in the recycling process.

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Comparative Analysis of Air Pollutant Emissions and Life Cycle Costs of Conventional Cut and Fill Road Construction

Itô¹

2015

geomate

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In recent years, new composite geomaterials have been developed to reduce the weight of road construction materials in soft ground and mountainous areas in Japan that are prone to ground liquefaction and landslide. These new composite geomaterials have some problems, such as increased construction time, cost, and adverse impacts on the environment. As a result, conventional geomaterials are usually chosen over composite geomaterials in Japan. However, there are few researches that analyzed the environmental impacts (for example, CO2, NOx, and SOx emissions as well as total life-cycle cost) of traditional and composite geomaterials quantitatively from the perspective of LCA (life cycle assessment). Therefore, the purpose of this research is to apply a LCA to estimate the total emissions of CO2, NOx, and SOx as well as the total life cycle costs of three embankments-one constructed by the conventional method (cut and fill), one with lightweight geomaterial mixed with expanded polystyrene beads, and one by the expanded polystyrol construction method. All three embankments are located on a mountain road in Japan.

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Evaluation of Social Environmental Efficiency on Recycling of Construction Sludges as Ground Materials

Cited by 5 publications

References 2 publications

Environmental Accounting on Treatment and Reutilization of Construction Sludges in Geotechnical Engineering Fields

Environmental Accounting on Treatment and Reutilization of Construction Sludges in Geotechnical Engineering Fields

Effectiveness evaluation on reuse of construction sludges considering uncertainties of environmental economics

Comparative Analysis of Air Pollutant Emissions and Life Cycle Costs of Conventional Cut and Fill Road Construction

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