International collaboration for the creation of the system to achieve global warming control and improvement of physical property of rock

Project Gist

International collaboration for the creation of the system to achieve global warming control and improvement of physical property of rock

Keywords

Global warming, Rock, Fracture, Permeability

Joint Research/Academic Institutions Abroad

University College London, University of North Carolina at Charlotte, Northeastern University

Background and Purpose

Global warming is a common problem in the world. To control of the global warming, it seems to be effective to decrease the emission of the carbon dioxide (CO₂) to air. For this purpose, Carbon Capture and Storage (CCS) has been planned as an important engineering project. In this international research collaboration project, we investigated the mechanisms to accelerate the precipitation of carbonate mineral in the underground rock mass, to seal the fractures and pores, and then to decrease the permeability in the rock. Since the decrease of the emission of CO₂ by this mechanism, it is considered that the results of this project can contribute the global warming control.

Project Achievements

It is shown that the permeability of rock decreased by using carbonate water. This result contributes to control the global warming and to ensure the safety of rock engineering projects. The network of international collaboration could be achieved. In addition, it has been achieved to increase the ability to complete research projects with collaborating various researchers in the world.

Future Prospects

It is planned to investigate the mechanism to accelerate the fracture sealing using carbon dioxide and cementitious materials, which leads to the increase of the strength and confining ability of rock. This investigation can contribute to ensure the control of global warming and safety of the rock mass surrounding various structures. In addition, it is planned to apply some grants to strengthen and enlarge the network of the international collaboration.

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Principal Investigator