University of North Dakota

M Faisal Riyad

Surojit Gupta

A method for making a low-alkali fly ash cement includes forming a mixture of class C fly ash and an aqueous solution and forming low-alkali fly ash cement from the mixture. The aqueous solution has an alkali at a molar concentration between about 0.002 M and about 2 M. A low-alkali fly ash cement includes class C fly ash and an alkali activating agent. The low-alkali fly ash cement contains between about 3&#xd7;10wt % alkali activating agent and about 2 wt % alkali activating agent. A method for making fly ash cement includes forming a mixture of class C fly ash and water, wet pressing the mixture and forming fly ash cement from the mixture by curing the mixture at a temperature between about 60&#xb0; C. and about 90&#xb0; C.

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Grand Forks, ND, United States of America

M Faisal Riyad