Bureau of Mines / Minerals yearbook: Metals, minerals, and fuels 1972
Year 1972, Volume 1 (1972)
Brown, Brinton C.
Cement, pp. 247-287 ff. PDF (4.5 MB)
247Cement By Brinton C. Brown 1 Portland -cement shipments from plants in the United States and Puerto Ri-co reached another alltime high of 81,432,000 tons in 1912, surpassing the 197-1 record by 3%. Mill value rose to $L65 billion, an increase of 12%, reflecting a unit increase of $1.57 a ton. A record 4.9 million tons of cement and clinker were imported for consumption in the United States and Puerto Ri-co, an increase of 59%. Cement sales were again spurred by an unprecedented high level of housing -construction, particularly in the South. In Florida, for example, building permits in-creased 55%. The cement situation in 1972 was a dichotomy of regional shortages and surpluses, with transportation -costs a barrier to the solution of both problems. Imports doubled in Florida to alleviate an acute shortage, while domestic producers allocated shipments to -customers in that area. Although production capacity remained un-changed, consumption w-as rising, costs were escalating upward, and prices increased -8% despite constraints imposed under Phase II of the Economic Stabilization Act. Nevertheless, price increases did not offset rising costs of labor, fuel, power, transportation, and materials. Manufacturers complained that profits were inadequate to provi-de capital for reinvestment and new plant investment. With the improved demand for cement some companies ameliorated their profit position by operating plants at or near capa-city. The real improvement was from the in-creased volume of cement shipped. Hurri-cane Agnes in June and exceptionally bad weather in the fourth quarter curtailed cement shipments and prevented sales from reaching an even greater record high. -Curtailed cement production stemming from a natural gas shortage impelled 16 companies to install alternate standby fuel systems. Several companies were investing in natural gas supplies. Kaiser Cement & Gypsum Co. purchased two gas wells and I Mining engineer, Division of Nonmetallic Minerals—Mineral Supply. Table 1.—Salient cement statistics (Thousand short tens and thousand dollars) 1968 1969 1970 1971 1972 United States: Production'' 75,830 76,693 74,825 78,824 82,597 Shipments from mills''0 76,802 78,637 74,607 80,396 83,836 Value'"4 $1,294,533 $1,354,033 $1,336,255 $1,528,056 $1,724,140 Average value per ton' ' $16.97 $17.22 $17.91 $19.01 $20.69 Stocks Dec. 31 at mills: 1 7,892 7,129 7,574 6,381 7,072 Exports 177 111 159 110 101 Imports for consumption 1,370 1,821 2,597 3,088 4,911 Consumption, apparent 6 77,495 80,348 75,970 81,488 84,994 World: Production 568,065 598,825 629,645 667,614 702,666 ' Excludes Puerto Rico. ' Includes portland, masonry, and slag cement (1968—1969). Excludes slag cement (1970—1972). 3lncludes imported cement shipped by domestic producers only. Value received. f.o.b. mill, excluding cost of containers. Includes portland, masonry (1970—1972), slag cement (1968—1969). 6 Quantity shipped plus imports minus exports. 7Adjusted to eliminate duplication of imports (clinker and cement) shipped by domestic cement manufacturers.
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