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Zen Graphene Solutions Ltd
Symbol ZEN
Shares Issued 64,204,607
Close 2019-02-21 C$ 0.50
Market Cap C$ 32,102,304
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Zen Graphene continues tailings testwork in B.C.

2019-02-21 10:32 ET - News Release

Mr. Francis Dube reports

ZEN GRAPHENE SOLUTIONS TESTING OF ALBANY GRAPHITE TAILINGS AS A PARTIAL CEMENT REPLACEMENT SHOWS EXCELLENT COMPRESSIVE STRENGTH RESULTS

Zen Graphene Solutions Ltd. has provided an update on the Albany graphite project tailings testwork for potential application as a partial cement replacement material recently initiated at the University of British Columbia's Okanagan campus (UBC-O) (please see the company's news release dated Dec. 17, 2018).

This testwork is being carried out as part of the company's market development strategy, with the goal of utilizing the tailings as a partial cement replacement. Early results show promise and, if successful, would reduce tailings disposal costs and create a potential byproduct revenue stream. In addition, Zen will also be initiating new research testwork, where Albany graphene will be added to project tailings material to potentially create a new, innovative and enhanced cement material and concrete that could have higher strength, faster curing time and increased durability, as well as significant environmental benefits through reduced CO2 (carbon dioxide) emissions.

Francis Dube, co-chief executive officer of Zen Graphene Solutions, commented: "Cement production from limestone is a significant source of CO2 emissions, accounting for approximatively 8 per cent of global emissions. Every ton of cement that we can replace with our tailings material would potentially save up to approximately one ton of CO2 emissions."

The research work is being conducted by Dr. Ahmad Rteil at UBC-O, where Zen's tailings material was successfully tested as a partial cement replacement. Dr. Rteil replaced 10 per cent and 20 per cent of a cement mixture with Zen's tailings material. After 28 days, the results showed the 10-per-cent replacement had a compressive strength rating of 46.1 MPa (megapascals), less than a 2-per-cent difference from the control at 47 MPa. The 20-per-cent replacement had a compressive strength rating of 37.9 MPa, about a 20-per-cent difference with the control sample.

These results are significant, as most of the concrete currently used by the construction industry (for low- and mid-rise buildings, bridge decks and foundations) has a compressive strength requirement ranging between 20 MPa and 40 MPa. These highly encouraging initial and unoptimized results show significant promise for Zen to push forward with further development work. The company now plans further tests that will optimize the use of Albany araphite tailings as a partial cement replacement, including the potential of adding Zen graphene to the tailings material.

Dr. Rteil commented: "These results are very promising. Partially replacing cement with tailings materials could have a significant financial and environmental impact on the concrete industry by being able to deliver a better product while reducing its carbon footprint."

About Zen Graphene Solutions Ltd.

Zen Graphene Solutions is an emerging graphene technology solutions company with a focus on development of the unique Albany graphite project as a precursor graphene material product opportunity and product market development. The Albany graphite project provides the company with a competitive advantage in the potential graphene market as independent labs in Japan, the United Kingdom, Israel, the United States and Canada have demonstrated that Zen's Albany graphite/Naturally Pure easily converts (exfoliates) to graphene using a variety of simple mechanical and chemical methods.

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