scholarly journals A comparative environmental impact analysis of asphalt mixtures containing crumb rubber and reclaimed asphalt pavement using life cycle assessment

2019 ◽  
pp. 1-15 ◽  
Author(s):  
Sara Bressi ◽  
Joao Santos ◽  
Marko Orešković ◽  
Massimo Losa
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Impact Analysis ◽  
Asphalt Pavement ◽  
Crumb Rubber ◽  
Asphalt Mixtures ◽  
Reclaimed Asphalt Pavement ◽  
Environmental Impact Analysis ◽  
Reclaimed Asphalt

scholarly journals Analysis of the Characteristics of Environmental Impacts According to the Cut-Off Criteria Applicable to the Streamlined Life Cycle Assessment (S-LCA) of Apartment Buildings in South Korea

2021 ◽  
Vol 13 (5) ◽  
pp. 2898
Author(s):  
Rakhyun Kim ◽  
Myung-Kwan Lim ◽  
Seungjun Roh ◽  
Won-Jun Park
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Environmental Impacts ◽  
Impact Analysis ◽  
Impact Categories ◽  
Environmental Impact Analysis ◽  
Apartment Buildings ◽  
Environmental Impact Categories ◽  
Weight Percentile

This study analyzed the characteristics of the environmental impacts of apartment buildings, a typical housing type in South Korea, as part of a research project supporting the streamlined life cycle assessment (S-LCA) of buildings within the G-SEED (Green Standard for Energy and Environmental Design) framework. Three recently built apartment building complexes were chosen as study objects for the quantitative evaluation of the buildings in terms of their embodied environmental impacts (global warming potential, acidification potential, eutrophication potential, ozone layer depletion potential, photochemical oxidant creation potential, and abiotic depletion potential), using the LCA approach. Additionally, we analyzed the emission trends according to the cut-off criteria of the six environmental impact categories by performing an S-LCA with cut-off criteria 90–99% of the cumulative weight percentile. Consequently, we were able to present the cut-off criterion best suited for S-LCA and analyze the effect of the cut-off criteria on the environmental impact analysis results. A comprehensive environmental impact analysis of the characteristics of the six environmental impact categories revealed that the error rate was below 5% when the cut-off criterion of 97.5% of the cumulative weight percentile was applied, thus verifying its validity as the optimal cut-off criterion for S-LCA.

Laboratory investigation of engineering properties of rubberized asphalt mixtures containing reclaimed asphalt pavement

2010 ◽  
Vol 37 (11) ◽  
pp. 1414-1422 ◽  
Author(s):  
Feipeng Xiao ◽  
Serji Amirkhanian ◽  
Bradley Putman ◽  
Junan Shen
Keyword(s):  
Resilient Modulus ◽  
Asphalt Pavement ◽  
Crumb Rubber ◽  
Asphalt Mixtures ◽  
Engineering Properties ◽  
Reclaimed Asphalt Pavement ◽  
Reclaimed Asphalt ◽  
The Us ◽  
Rubberized Asphalt Concrete ◽  
Environmentally Sound

An improved understanding of the rheological and engineering properties of a rubberized asphalt concrete (RAC) pavement that contains reclaimed asphalt pavement (RAP) is important to stimulating the use of these recycled and by-product materials in asphalt mixtures. The uses of RAP and rubberized asphalt in the past have proven to be economical, environmentally sound, and effective in hot mix asphalt (HMA) mixtures across the US and the world. The objective of this research was to investigate the binder and mixture performance characteristics of these modified asphalt mixtures through a series of laboratory tests to evaluate properties such as the fatigue factor G*sinδ, rutting resistance, resilient modulus, and fatigue life. The results of the experiments indicated that the use of RAP and crumb rubber in HMA can effectively improve the engineering properties of these mixes.

Environmental impact analysis and process optimization of batteries based on life cycle assessment

2018 ◽  
Vol 174 ◽  
pp. 1262-1273 ◽  
Author(s):  
Qingsong Wang ◽  
Wei Liu ◽  
Xueliang Yuan ◽  
Hongrui Tang ◽  
Yuzhou Tang ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Process Optimization ◽  
Impact Analysis ◽  
Environmental Impact Analysis

scholarly journals Reuse of bituminous pavements: A mini-review of research, regulations and modelling

2016 ◽  
Vol 35 (4) ◽  
pp. 357-366 ◽  
Author(s):  
Joke Anthonissen ◽  
Wim Van den bergh ◽  
Johan Braet
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
End Of Life ◽  
Asphalt Pavement ◽  
Life Stage ◽  
Life Cycle Stage ◽  
Supplementary Information ◽  
Reclaimed Asphalt Pavement ◽  
Reclaimed Asphalt ◽  
Bituminous Mixtures

Bituminous pavement can be recycled – even multiple times – by reusing it in new bituminous mixtures. If the mechanical properties of the binder get worse, this reclaimed asphalt is often used in the sub-structure of the road. Apparently, up till now, no end-of-life phase exists for the material. Actually, defining the end-of-life and the end-of-waste stage of a material is important for life cycle assessment modelling. Various standards and scientific studies on modelling life cycle assessment are known, but the crucial stages are not yet defined for reclaimed asphalt pavement. Unlike for iron, steel and aluminium scrap, at this moment, no legislative end-of-waste criteria for aggregates are formulated by the European Commission. More research is necessary in order to develop valuable end-of-life criteria for aggregates. This contribution is a mini-review article of the current regulations, standards and studies concerning end-of-life and end-of-waste of reclaimed asphalt pavement. The existing methodology in order to define end-of-waste criteria, a case study on aggregates and the argumentation used in finished legislative criteria are the basis to clarify some modelling issues for reclaimed asphalt material. Hence, this contribution elucidates the assignment of process environmental impacts to a life cycle stage as defined by EN15804, that is, end-of-life stage (C) and the supplementary information Module D with benefits and loads beyond the system boundary.

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