Reaching net-zero carbon emissions in construction supply chains – Analysis of a Swedish road construction project
(چکیده مقاله) :
Abstract :
Recent estimates suggest that the construction sector accounts for approximately one quarter of global CO2
emissions. This paper assesses the potential for reducing the climate impact of road construction. The study is
structured as a participatory integrated assessment with involvement from key stakeholders in the supply chain,
supported by energy and material flow mapping, an extensive literature review and a scenario analysis. The
results indicate that it is technically possible to halve road construction CO2 emissions with today’s best available
technologies and practices, to abate more than three quarters of the emissions by 2030 and achieve close to net
zero emissions by 2045. Realising the current potential would rely on sufficient availability of sustainably
produced second-generation biofuels, indicating a need to speed up the implementation of alternative abatement
measures, including optimization of material use and mass handling requirements, increased recycling of steel,
asphalt and aggregates and enhanced use of alternative binders in concrete. Policy measures and procurement
strategies should be aligned to support these measures with a clear supply chain focus. For deep decarbonization
several key opportunities and obstacles for realisation of breakthrough technologies for basic industry are
highlighted – including electrification and carbon capture for steel and cement, and hybridisation and electrification
for heavy transport and construction equipment. There is a clear need to prepare for deeper abatement
and associated transformative shifts already now an
emissions. This paper assesses the potential for reducing the climate impact of road construction. The study is
structured as a participatory integrated assessment with involvement from key stakeholders in the supply chain,
supported by energy and material flow mapping, an extensive literature review and a scenario analysis. The
results indicate that it is technically possible to halve road construction CO2 emissions with today’s best available
technologies and practices, to abate more than three quarters of the emissions by 2030 and achieve close to net
zero emissions by 2045. Realising the current potential would rely on sufficient availability of sustainably
produced second-generation biofuels, indicating a need to speed up the implementation of alternative abatement
measures, including optimization of material use and mass handling requirements, increased recycling of steel,
asphalt and aggregates and enhanced use of alternative binders in concrete. Policy measures and procurement
strategies should be aligned to support these measures with a clear supply chain focus. For deep decarbonization
several key opportunities and obstacles for realisation of breakthrough technologies for basic industry are
highlighted – including electrification and carbon capture for steel and cement, and hybridisation and electrification
for heavy transport and construction equipment. There is a clear need to prepare for deeper abatement
and associated transformative shifts already now an
(توضیحات تکمیلی) :
(توضیحات تکمیلی) :
Description :
مقاله ISI انگلیسی اصلی
سال انتشار: 2020
فایل ISI انگلیسی اصلی ، با فرمت Pdf
تعداد صفحات فایل ISI انگلیسی اصلی: 14 صفحه
سال انتشار: 2020
فایل ISI انگلیسی اصلی ، با فرمت Pdf
تعداد صفحات فایل ISI انگلیسی اصلی: 14 صفحه
Authors / Descriptions(نویسندگان/توضیحات): مقاله ISI سال انتشار 2020 \ Ida Karlsson *, Johan Rootz�en , Filip Johnsson
Sent date(تاریخ ارسال) :
1398/11/25 | 2/14/2020
Number of visits(تعداد بازدید):
1076
Key words (کلمات کلیدی):
Carbon abatement , Decarbonization , Emissions reduction , Embodied carbon mitigation , Climate change impact , GHG emissions
Number of pages(تعداد صفحات) :
14
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