PDF Limestone and Crushed Rock Department of Energy
54,000 Btu per ton for a plant producing fine agricultural limestone as well as grade stone. The average for the 20 plants was 33,500 Btu per ton. 1 Very few studies similar to the NSA report have been generated since that time. Table 91. Limestone and Other Crushed Rock Production and Energy Consumed by Type a Units 1987 1992 1997 Limestone and