|
| TABLE 7 | ||||||||||||||||||||
| CLINKER PRODUCED AND FUEL CONSUMED BY THE U.S. CEMENT INDUSTRY, BY KILN PROCESS1 | ||||||||||||||||||||
| Production2 | Conventional fuels3 | Waste fuels3 | ||||||||||||||||||
| Quantity | Coal4 | Petcoke | Oil5 | Natural gas6 | Tires | Solid | Liquid | |||||||||||||
| Number | (thousand | Percentage | (thousand | (thousand | (thousand | (thousand | (thousand | (thousand | (thousand | |||||||||||
| Kiln process | of plants | metric tons) | of total | metric tons) | metric tons) | liters) | cubic meters) | metric tons) | metric tons) | liters) | ||||||||||
| 2012: | ||||||||||||||||||||
| Wet | 11 | 3,848 | 5.7 | 503 | 110 | 5,120 | 59,000 | 64 | 7 | 181,000 | ||||||||||
| Dry7, 8 | 83 | 63,326 | 94.3 | 5,250 | 1,290 | 36,800 | 834,000 | 336 | 880 | 1,024,000 | ||||||||||
| Both8, 9 | 1 | W | W | W | W | W | W | W- | W | W | ||||||||||
| Total10 | 95 | 67,173 | 100.0 | 5,750 | 1,400 | 41,900 | 893,000 | 400 | 887 | 1,210,000 | ||||||||||
| 2013 | ||||||||||||||||||||
| Wet | 10 | 3,293 | 4.7 | 450 | 108 | 1,430 | 65,600 | 50 | 7 | 158,000 | ||||||||||
| Dry7, 8 | 83 | 66,126 | 95.3 | 5,590 | 1,450 | 14,300 | 629,000 | 349 | 1,100 | 647,000 | ||||||||||
| Both8, 9 | 1 | W | W | W | W | W | W | W- | W | W | ||||||||||
| Total10 | 94 | 69,420 | 100.0 | 6,030 | 1,560 | 15,700 | 694,000 | 399 | 1,110 | 805,000 | ||||||||||
| W Withheld to avoid disclosing company proprietary data. | ||||||||||||||||||||
| 1Excludes Puerto Rico. | ||||||||||||||||||||
| 2Data are all reported. Although unrounded, data are thought to be accurate to no more than three significant digits. | ||||||||||||||||||||
| 3With the exception of natural gas (for better summation), all fuel data have been rounded to no more than three significant digits. | ||||||||||||||||||||
| 4All reported to be bituminous. | ||||||||||||||||||||
| 5Distillate and residual fuel oils. Excludes used oils that were reported under liquid wastes. | ||||||||||||||||||||
| 6Includes landfill gas and propane. | ||||||||||||||||||||
| 7Includes one semiwet plant. | ||||||||||||||||||||
| 8Data for the category -Both- have been included in those for -Dry- plants to protect company proprietary information. | ||||||||||||||||||||
| 9Plants that can operate both wet and dry kilns, whether or not both types were active during the year. Includes plants that converted from wet to dry technology during the year. | ||||||||||||||||||||
| 10May not add to totals shown because of independent rounding. | ||||||||||||||||||||
Source: United States Geological Survey Mineral Resources Program
See also: Mineral commodity prices
