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• a <br />MARTIN MARIETTA CEMENT yOLUMES <br />LYONS QUARRY <br />To get a good picture of volumes mined for production and volumes mined <br />that will be used for landfilling and reclamation, one has to figure the <br />"swell factor". When rock is blasted from a solid formation, the volume <br />"swells" or increases 30% to 50%. It is impossible to put this material <br />back to 100% compaction. It took nature millions of years to compact the <br />material to its present densities. With this in mind, one can readily <br />say that in a mining operation one would need a hole 1 1/3 to 12 times <br />the size of the hole the material was originally taken out of. <br />Volumes <br />Pits A F <br />16 x 10 cubic yards material removed <br />10 x 106 cubic yards not used <br />10 x 106 x 1.3 swell factor = 13 x 106 cubic yards to be used for <br />fill and reclamation. <br />1.5 x 106 cubic yards material will be placed in waste area #2. <br />11.5 x 106 cubic yards will be used to refill Pit A and F <br />Pits B, C, D, E <br />15 x 106 cubic yards <br />11 x 106 cubic yards <br />11 x 106 x 1.3 swell <br />reclamation. <br />1.2 x 106 cubic yard <br />.5 x 106 cubic yards <br />material .use~~emouc~ <br />material not used <br />factor = 14.3 x 106 cubic yards for fill and <br />s will be used to fill waste area #3. <br />will be used for filling silica quarry. <br />That leaves 12.6 x 106 cubic yards to fill a 15 x 106 cubic yard hole. <br />The 2.4 x 106 cubic yards remaining will be made up from dust that is <br />hauled away from the plant. <br />