QUANTIFYING UNCERTAINTIES IN THE SUSTAINABILITY EVALUATION OF CONCRETE MATERIALS CONSIDERING REGIONAL CHARACTERISTICS IN JAPAN

Nicole Alexis Kwan Vios, Michael Ward Henry, Joel Galupo Opon

研究成果: Conference contribution

抄録

In the evaluation of concrete sustainability, what constitutes "sustainable"to one region may vary from another. This often leads to methodological forms of uncertainties that makes the evaluation process more complex. As such, this paper aims to quantify the effect of uncertainties in the regional context on the sustainability evaluation of concrete materials. This is carried out by quantifying the regional context through establishing a weighting scheme and then integrating the obtained weights into the sustainability analysis of concrete materials in tandem with uncertainty analysis. Japan is used as a case study because although it relatively appears as a homogeneous country, its prefectures possess unique characteristics that may make the sustainability evaluation of concrete materials vary across prefectures. Cluster analysis is carried out in the 47 prefectures of Japan using a set of regional context indicators. Five clusters are identified with varying characteristics and these are translated into different weighting schemes. The established weights are used in the sustainability evaluation of concrete materials using multi-criteria decision-making analysis. The results showed that one mix is the most sustainable for four of the clusters and a different mix is the most sustainable for the remaining cluster. When uncertainty analysis is conducted, the effect of the weights in the sustainability evaluation is explained by examining the average scores of the concrete mixes and the variance of the scores across the five clusters. This investigation facilitated the understanding of how regional differences and the uncertainties associated with it impact the evaluation of concrete sustainability.

本文言語English
ホスト出版物のタイトルfib International Conference on Concrete Sustainability 2021
編集者Katerina Sojkova, Petr Hajek, Ctislav Fiala
出版社Czech Technical University in Prague
ページ631-637
ページ数7
ISBN(電子版)9788001069646
DOI
出版ステータスPublished - 2022 3月 3
イベントfib International Conference on Concrete Sustainability 2021, ICCS 2021 - Prague, Czech Republic
継続期間: 2021 9月 82021 9月 10

出版物シリーズ

名前Acta Polytechnica CTU Proceedings
33
ISSN(電子版)2336-5382

Conference

Conferencefib International Conference on Concrete Sustainability 2021, ICCS 2021
国/地域Czech Republic
CityPrague
Period21/9/821/9/10

ASJC Scopus subject areas

  • 工学一般
  • 物理学および天文学一般
  • 応用数学

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