Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 1 of 1
Full-Text Articles in Engineering
Characterization Of A Coal Fly Ash-Cement Slurry By The Absolute Foam Index, Melanie Kueber Watkins
Characterization Of A Coal Fly Ash-Cement Slurry By The Absolute Foam Index, Melanie Kueber Watkins
Dissertations, Master's Theses and Master's Reports
This dissertation established a standard foam index: the absolute foam index test. This test characterized a wide range of coal fly ash by the absolute volume of air-entraining admixture (AEA) necessary to produce a 15-second metastable foam in a coal fly ashcement slurry in a specified time. The absolute foam index test was used to characterize fly ash samples having loss on ignition (LOI) values that ranged from 0.17 to 23.3 %wt. The absolute foam index characterized the fly ash samples by absolute volume of AEA, defined as the amount of undiluted AEA solution added to obtain a 15-minute endpoint …