Performance study of low carbon footprint cement obtained through the electrochemical decarbonation of limestones used by the Canadian cement industry

The electrochemical decarbonation (ED) of limestone is a novel disruptive technology with the potential to promote deep decarbonization of the cement industry, which emits about 8% of carbon dioxide global emissions. ED uses water electrolysis cells to precipitate Ca(OH)2, which has been used as an alternative raw material for Alite synthesis, the main clinker compound. Although this is evidence of the Ca(OH)2 potential as raw material for cement production, cement chemistry is more complex, and it includes other relevant compounds that are also significant for cement performance. Accordingly, this research aims to formulate an alternative clinker using precipitated materials from the ED of limestones from the Canadian cement industry and to assess its performance as a low-carbon footprint binder for concrete. On positive results of this research, evidence will be obtained on the technical potential of the alternative raw material, promoting ED scalability in the current chains for cement production.

Faculty Supervisor:

Martin Noel

Student:

Partner:

Pontificia Universidad Católica de Chile

Discipline:

Engineering

Sector:

Clean Technology; Manufacturing and Construction

University:

University of Ottawa

Program: