|
| TABLE 15 | |||||
| PORTLAND CEMENT SHIPPED FROM PLANTS IN THE UNITED STATES TO | |||||
| DOMESTIC CUSTOMERS, BY TYPE1, 2 | |||||
| (Thousand metric tons) | |||||
| Type | 2005 | 2006 | |||
| General use and moderate heat (Types I and II) (gray)3 | 94,800 | r | 93,500 | ||
| High early strength (Type III) | 3,960 | 3,810 | |||
| Sulfate resisting (Type V)3 | 18,100 | 17,700 | |||
| Block | 555 | 581 | |||
| Oil well | 1,440 | 1,480 | |||
| White4 | 1,190 | 1,180 | |||
| Blended: | |||||
| Portland, natural pozzolans | 40 | 216 | |||
| Portland, granulated blast furnace slag | 1,880 | 2,140 | |||
| Portland, fly ash | 362 | 304 | |||
| Other blended cement5 | 883 | 718 | |||
| Total6 | 3,160 | 3,400 | |||
| Expansive and regulated fast setting | 62 | r | 42 | ||
| Miscellaneous7 | 2 | 59 | 8 | ||
| Grand total6, 9 | 123,000 | r | 122,000 | ||
| rRevised. | |||||
| 1Sales to domestic final customers only. Includes sales of imported cement. Excludes Puerto Rico. | |||||
| 2Data are rounded to no more than three significant digits. | |||||
| 3Cements classified as Type II/V hybrids are included with Type V. | |||||
| 4Mostly Types I and II but may include Types III-V and block cements. | |||||
| 5Includes blends with other pozzolans (cement kiln dust, silica fume, other). | |||||
| 6Data may not add to totals shown because of independent rounding. | |||||
| 7Includes low heat (Type IV), waterproof, and other portland-type cements. | |||||
| 8Includes some ASTM C-1157 cements possibly included with other cement types | |||||
| in former years. | |||||
| 9Data are based on an annual survey of plants and importers; totals may differ | |||||
| from those in table 9, which are based on consolidated monthly data from companies. | |||||
Source: United States Geological Survey Mineral Resources Program