Browsing Reports of Progress - Indiana Geol. Survey by Subject "Pennsylvanian Underclays, Bonding Clays, Foundries"

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  • Murray, Haydn H. (Indiana Department of Conservation, 1957)
    Laboratory tests show that five underclays from western and southwestern Indiana are potential sources of bonding clay for foundries. Green and dry strength tests were dteremined for each sample, obtained from a commercially ...

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