FUTURE SENARIO ANALYSIS OF MATERIAL STOCK AND FLOW OF CONSTRUCTION MINERALS TOWARD DECARBONIZATION

• MATSUI Kengo

  名古屋大学大学院 環境学研究科

• HASEGAWA Masatoshi

  株式会社建設技術研究所

• TAKAGI Shigesada

  みずほ情報総研株式会社

• OKUOKA Keijiro

  名古屋大学大学院 環境学研究科

• TANIKAWA Hiroki

  名古屋大学大学院 環境学研究科

Bibliographic Information

Other Title

• 低炭素化に向けた日本全国の土石系資源ストックフローの将来シナリオ分析

Abstract

 This study estimated future construction minerals stock and flow, and calculated its intensities. The intensities were calculated by construction mineral shipment and stock increase figures. The construction mineral stock and flow data was used to estimate CO₂ emissions with a scenario type of using mixed cement, and to estimate recycling potential as recycled aggregate. The results show that buildings, roads, and other civil infrastructure have accumulated 100Mton, 120Mton, and 87Mton respectively. CO₂ emissions in a scenario using mixed cement is 3.9Mton in 2050, which was found to be less than the 0.8Mton emissions in a scenario status type of not using mixed cement. Recycled aggregate demands would accumulate to 47Mton in 2050, and concrete waste by demolished buildings in 2050 would accumulate to 140Mton, therefore it is clarified that there is a large recycling potential.

Journal

• Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

  Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 71 (6), II_309-II_317, 2015

  Japan Society of Civil Engineers

Keywords

• construction materials
• material stock and flow model
• CO₂ emission
• mixed cement

Details

• CRID: 1390001205357836160
• NII Article ID: 130005155764
• DOI: 10.2208/jscejer.71.ii_309
• ISSN: 21856648
• Web Site: https://www.jstage.jst.go.jp/article/jscejer/71/6/71_II_309/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed