C4S* Research and Development Project

Project Manager: Takafumi Noguchi (The University of Tokyo)

Participating Institutions
The University of Tokyo, Hokkaido University
Tokyo University of Science, Kogakuin University, Utsunomiya University
Shimizu Corporation, Taiheiyo Cement, Masuo Recycle
cipating Institutions
 

c4s_3.jpg c4s_2.jpg

ccc

 
C4S* Research and Development Project

*Calcium Carbonate Circulation System for Construction
 

Participating Institutions

東京大学ロゴ
北海道大学ロゴ
東京理科大学ロゴ
工学院大学ロゴ
宇都宮大学ロゴ
清水建設ロゴ
太平洋セメントロゴ
増尾リサイクルロゴ
ムーンショットロゴ

The University of Tokyo, Hokkaido University, Tokyo University of Science, Utsunomiya University, Shimizu Corporation,Taiheiyo Cement, Masuo Recycl,

Outline of Research and Development 

The group consisting of the University of Tokyo, Hokkaido University, Tokyo University of Science, Utsunomiya University, Shimizu Corporation, Taiheiyo Cement, and Masuo Recycle is implementing the NEDO Moonshot R & D Project "C4S Research and Development Project" (C4S : Calcium Carbonate Circulation System for Construction) with the aim of making a significant contribution to the realization of a carbon-neutral society and a resource-recycling society. In the project, CO2 that is thinly spread in the atmosphere and concrete waste generated by the demolition of structures that exist all over the world are regarded as construction resources. We are conducting various research and development on the new concrete for next generation that can be recycled many times and become carbon neutral, that is, calcium carbonate concrete (CCC), using only CO2, concrete waste and water. The current research and development issues of the project are classified into the following three categories.

 
Investigation of manufacturing principle and development of manufacturing technology for CCC, which is produced by flowing a calcium bicarbonate solution between concrete waste particles (aggregate for CCC) that are in close contact with each other, precipitating calcium carbonate crystals by various controls, and binding the concrete waste particles to each other

 
Development of efficient crushing method for concrete waste and efficient CO2 capture method using concrete waste for producing aggregate for CCC with optimum particle size distribution and carbonation rate

 
Examination of various issues for social implementation of CCC, including evaluation of various performances of CCC, development of design method of CCC structure, establishment of laws and standards required for CCC structure, optimal resource recycling scenario in C4S , and analysis of LCCO2 reduction effect in C4S )


 

CCC*manufacturing process

*CCC: Calcium Carbonate Concrete
CCC*製造プロセス概念図

MOONSHOT logo

C4S* Research and Development Project

 
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Researcher

NOGUCHI Takafumi
University of Tokyo
MARUYAMA Ippei
University of Tokyo
KANEMATSU Manabu
Tokyo University of Science
KITAGAKI Ryoma
Hokkaido University
TAMURA Masaki
Kogakuin University
FUJIMOTO Satoshi
Utsunomiya University
 
TSUJINO Masato
Shimizu Corporation
NAKAZAWA Haruo
Shimizu Corporation
KURODA Yasuhiro
Shimizu Corporation
 
HIRAO Hiroshi
Taiheiyo Cement
HYODO Hikotsugu
Taiheiyo Cement
MASUO Takayoshi
Masuo Recycle
C4S Research and Development Project

C4S* Research and Development Project

*Calcium Carbonate Circulation System for Construction

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