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Pressure Transmission In Clays Affected By Time Of Pressure Application, Robert Edward Lee
Pressure Transmission In Clays Affected By Time Of Pressure Application, Robert Edward Lee
Bachelors Theses
"Experienced dry-press operators have long known that when they slow down their presses, to the proper speed they are able to exert more pressure on a wetter mix with out pressure cracks becoming apparent. When a clay mix is compressed in a dry-press there is a gradation of the pressure exerted, from the rams to the center, causing in some cases a soft centered brick. "Shelly brick", are undersirable sic because they do not have uniform physical properties through out. This weakens their structure, due to unequal stresses developed in drying and fireing sic. The defective structure of dry-pressed brick …