Low concentration alkali fly ash cement and method of making

摘要

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 3×10−4 wt % 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° C. and about 90° C.

主权项

1. A method for making a low concentration alkali fly ash cement, the method comprising:
forming a mixture of class C fly ash and an aqueous solution, wherein the aqueous solution comprises an alkali at a molar concentration between about 0.002 M and about 0.2 M; and forming low concentration alkali fly ash cement from the mixture.