| Abstract: | In the United States, the manufacture of portland cement involves burning in a rotary kiln a finely ground proportional mix of raw materials. The raw material mix provides the required chemical combination of calcium, silicon, aluminum, iron, and small amounts of other ingredients. The majority of calcium is supplied in the form of calcium carbonate usually from limestone. Other sources including waste materials or byproducts from other industries can be used to supply calcium (or lime, CaO), provided they have sufficiently high CaO content, have low magnesia content (less than 5 percent), and are competitive with limestone in terms of cost and adequacy of supply. In the United States, the lime industry produces large amounts of lime kiln dust (LKD), which is collected by dust control systems. This LKD may be a supplemental source of calcium for cement plants, if the lime and cement plants are located near enough to each other to make the arrangement economical. |
| Genre: | USGS Numbered Series |
| ProdID: | 57947 |
| Citation Author: | Miller, M. Michael; Callaghan, Robert M. |
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| Citation Edition: | Version 1.0; Online only |
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| Citation Language: | ENGLISH |
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| Citation Online Only Flag: | Y |
| Citation Phsyical Description: | 9 p. |
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| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 2004-1336 |
| Citation Search Results Text: | Lime kiln dust as a potential raw material in portland cement manufacturing; 2004; OFR; 2004-1336; Miller, M. Michael; Callaghan, Robert M. |
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| Citation Year: | 2004 |
| Type: | citation/reference |
| Text: | Lime kiln dust as a potential raw material in portland cement manufacturing; 2004; OFR; 2004-1336; Miller, M. Michael; Callaghan, Robert M. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| URL (INDEX PAGE): | http://pubs.usgs.gov/of/2004/1336/ |
| Date Other: | Fri, 1 Oct 2004 00:00 -0500 |
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