Molding sands of Michigan and their uses
Michigan Dept. of Conservation, Geological Survey Division, 1936 - Sand, Foundry - 262 pages
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adsorbed Albany sand American Foundrymen's Association bond strength bonded sand bonding material boulder clay castings clay content clay substance coarser colloidal colloidal matter Company core sand COUNTY The surface covered depth determined dry strength durability dye-adsorption feet thick feldspar foundry glacial deposits glacial outwash grade grain fineness grain size grams heap sand hydrosol inches indicate Joseph County kaolin lake beds layers limonite mesh method Michigan Central Railroad miles east miles north miles south miles west mixture molding sand moraine moraine deposits natural molding sand naturally bonded obtained one-half miles outwash plains percent of clay Pere Marquette Railroad permeability physical properties quarter of Section ramming reported represented by sample Rittinger River sample was taken sand containing sand deposits sand found sand grains sand particles sandy satisfactory screen analysis sharp sand shore sieve silt similar to sample stratum Synthetic Molding Sand unbonded sand weight yellow sand Zanesville