Video Parts (3)
This clip is Part 1 of a 3-part film.
FROM MOUNTAIN TO CEMENT SACK Part 1
Description
A detailed account of the manufacture of Portland cement. Limestone is obtained from a quarry and slag from a steel mill. They are mixed and baked. Gypsum is added and the mixture is strained. The cement is tested and sacked.
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Records of the U.S. Bureau of Mines
Series
Public Information Films and Video Recordings
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