Bureau of Mines / Minerals yearbook: Area reports: domestic 1978-79
Year 1978-79, Volume 2 (1978-1979)
Aase, James H.; West, Wanda J.; Anderson, Raymond R.
Iowa, pp. 201-211 ff. PDF (1.1 MB)
THE MINERAL INDUSTRY OF IOWA 205 The Aluminum Company of America (Alcoa) announced plans in 1979 to add 11 acres of building space to expand the production capacity of its plant in the Davenport suburb of Riverdale. The plant already is the largest aluminum sheet, plate, and foil rolling mill in the world. The expansion is intended to meet the sharply increasing worldwide demand for heat-treated aluminum in the aerospace and automotive industries. When the expansion project is finished in 3 to 4 years, employment will increase by about 340 workers to a total work force of about 3,540 people. Alpha Crushed Stone, Inc.'s Lyons quarry at Clinton was the recipient of the "Outstanding Achievement Award" from the National Crushed Stone Association for its effort during 1978 in developing and implementing site beautification plans. During 1979, Martin-Marietta Aggregates initiated activities to develop two of its limestone properties into underground mining operations. The company is driving a decline at the site of its proposed Waterloo operation and is preparing to start driving an entry into the existing quarry face at its Ferguson property. During the biennium 1978-79, the Iowa Geological Survey prepared more than two score of reports and publications relating to investigations made on mineral and water resources and the geology of the State. Reports of special interest covering the State's mineral resources included: Gypsum Resources of the Fort Dodge Area, 1978, Public Information Circular No. 9; Matlock Taconite Body, 1979, Open File Report; An Introduction to the Stratigraphic Palynology of the Cherokee Group (Pennsylvanian) Coal of Iowa, 1979, Technical Paper No. 6; and Coal Resource Program Report, 1979. REVIEW BY NONFUEL MINERAL COMMODITIES NONMETALS Cement.—The total value of shipments in 1978 increased to a new record high for the eighth consecutive year. Although the quantity produced increased slightly over that of the previous year, it was still less than the record output of 1973. Iowa ranked 9th in the Nation in production of portland cement and 17th in masonry cement output. Five companies operated 13 kilns at 3 wet-process and 2 dry-process plants. Two companies operated plants located in Mason City, two in Des Moines, and one in Buffalo. Portland cement shipments increased both in quantity and value in 1978 over that of the previous year. The average value of portland cement sold by the Iowa manufacturers during the year was $40.56 per ton. Ready-mix companies were the largest users of the State's portland cement production, consuming about two-thirds of the output, followed, in descending order, by concrete product manufacturers, highway contractors, building material dealers, and minor amounts to government agencies, and other customers. Most of the shipments were made in bulk, with only minor amounts shipped in containers. Truck transportation was utilized in making the majority of the shipments and rail accounted for the remainder. Masonry cement shipments in 1978 increased slightly in quantity and value over that of the previous year. The average value of masonry cement sold in 1978 was $61.28 per ton, a $2.84 per ton increase over that sold the previous year. Approximately 4.4 million tons of nonfuel minerals and related raw materials were consumed in the producton of 2.7 million tons of finished cement in Iowa during 1978. A $25 million modernization and expansion program was completed at Lehigh Portland Cement Co.'s Mason City plant during 1978. The program, started in late 1976, included the installation of a new 13- by 184-foot coal-fired kiln and support facilities that allow for retirement of six old kilns. Plant capacity was increased about 20% to 750,000 tons per year. Lehigh, a wholly owned subsidiary of the Portland-Zementwerke, Heidelberg A.G. since 1977, also replaced much of its quarry loading, hauling, and crushing equipment, as a part of the modernization program. The Martin-Marietta Corp. began studies early in 1978 for a proposed new cement plant to replace its existing facility at Buffalo, near Davenport. The studies focused on the size and cost of a dry-process plant with more capacity and greater operating efficiencies than those of the existing 500,000ton-per-year wet-process plant. Near the end of 1978, the company announced that Kaiser Engineers of Oakland, Calif. had been commissioned to proceed with detailed engineering and procurement phases for
http://rightsstatements.org/vocab/NoC-US/1.0/| As a work of the United States government, this material is in the public domain.| For information on re-use see: http://digital.library.wisc.edu/1711.dl/Copyright