The National Sand and Gravel Bulletin Volume 2

The National Sand and Gravel Bulletin Volume 2

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1921 edition. Excerpt: ...referred to: The approximate production of finished Portland cement in the United States during the first six months of 1921 ending June 30, was 42,468,000 bbl., according to an estimate made by the United States Geological Survey. This production represents 94 per cent of the quantity made in the corresponding period of 1920 and over 42 per cent of the total production in 1920. The shipments during the first six months of 1921 were slightly in excess of 40,000,000 bbl., or about 98 per cent of the shipments for the first half of 1920 and 42 per cent of those for the whole year 1920. The stocks on hand, which amounted to more than 11,000,000 bbl., are slightly above normal, comparing with approximately 9O00,000 bbl_ on June 30, 1920, and 8,941,046 bbl. on December 31, 1920. AC-GREG ATE PRODUCTION As to the production and shipments of aggregate. both the sand and gravel producers and the slag and crushed stone manufacturers have so far this year enjoyed a rather relatively high degree of activity. Slag has shown the lowest production as compared with 1920, the estimate made by the National Slag Association being that for the first six months of 1921, 1,250,000 tons of slag were produced as against 2,500,000 during the same period of 1920. From figures supplied by the United States Geological Survey and the American Railway Association-the estimate is made by the National Association of Sand and Gravel Producers that 23,305,950 tons of sand, gravel and crushed stone were shipped over the railroads during the first six months of 1921. These figures compare with 28,331,200 tons during the first half of the year of 1920 and with 31,823,340 tons shipped during the first six months of 1913. Records show that the 1921 shipments were 82 per more

Product details

  • Paperback | 142 pages
  • 189 x 246 x 8mm | 268g
  • United States
  • English
  • black & white illustrations
  • 1236955153
  • 9781236955159