A New Concept of Calcium Carbonate Concrete using Demolished Concrete and CO2

Ippei Maruyama; Wataru Kotaka; Bui Ngoc Kien; Ryo Kurihara; Manabu Kanematsu; Hikotsugu Hyodo; Hiroshi Hirao; Ryoma Kitagaki; Masaki Tamura; Masato Tsujino; Satoshi Fujimoto; Takafumi Noguchi

doi:10.3151/jact.19.1052

科学論文

A New Concept of Calcium Carbonate Concrete using Demolished Concrete and CO₂

Ippei Maruyama, Wataru Kotaka, Bui Ngoc Kien, Ryo Kurihara, Manabu Kanematsu, Hikotsugu Hyodo, Hiroshi Hirao, Ryoma Kitagaki, Masaki Tamura, Masato Tsujino, Satoshi Fujimoto, Takafumi Noguchi

著者情報

Ippei Maruyama
Graduate School of Engineering, The University of Tokyo, Tokyo, Japan.
Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan.
Wataru Kotaka
Graduate School of Engineering, The University of Tokyo, Tokyo, Japan.
Bui Ngoc Kien
Graduate School of Engineering, The University of Tokyo, Tokyo, Japan.
Ryo Kurihara
Graduate School of Engineering, The University of Tokyo, Tokyo, Japan.
Manabu Kanematsu
Faculty of Science and Technology, Tokyo University of Science, Chiba, Japan.
Hikotsugu Hyodo
R&D Department, Taiheiyo Cement Corporation, Sakura-shi, Chiba, Japan.
Hiroshi Hirao
R&D Department, Taiheiyo Cement Corporation, Sakura-shi, Chiba, Japan.
Ryoma Kitagaki
Graduate School of Engineering, Hokkaido University, Sapporo, Japan.
Masaki Tamura
School of Architecture, Kogakuin University, Tokyo, Japan.
Masato Tsujino
Institute of Technology, Shimizu Corporation, Tokyo, Japan.
Satoshi Fujimoto
Department of Architecture and Urban Design, Utsunomiya University, Utsunomiya, Japan.
Takafumi Noguchi
Graduate School of Engineering, The University of Tokyo, Tokyo, Japan.

ジャーナルフリー

2021 年 19 巻 10 号 p. 1052-1060

DOI https://doi.org/10.3151/jact.19.1052

詳細

抄録

Countermeasures against carbon dioxide emissions are a concern in the construction field as well as in society. To solve this problem, a concept for new calcium carbonate concrete is proposed, and this concept is validated experimentally. In the proposed concept, calcium carbonate comprising Ca originating from demolished concrete or other Ca-containing industrial wastes and HCO₃^- from CO₂ gas collected from the air or emitted by industrial plants acts as a binder for aggregates, which can be natural rocks or crushed demolished concrete. This short paper describes the details of the process of making calcium carbonate concrete and discusses future perspectives.

責任著者(Corresponding author)

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