NIOSHTIC-2 Publications Search
Physical properties of western coal waste materials.
Backer RR; Busch RA; Atkins LA
NTIS#: PB 266 724, 1977; :1-29
The Bureau of Mines investigated the typical physical and chemical properties of coal waste materials from the western part of the United States. The results are compared, insofar as possible, with the properties of waste materials from eastern coal operations. The authors found a disparity of mines and preparation plants among western U.S. coal operations and dissimilarities with typical operations in the east. The relatively cleaner product from the predominance of surface mining and the occurrence of thicker seams in the west reduces the amount of coal preparation required and the size of the waste piles. Because of the abundance of land available for waste disposal, many of the piles are low and extended over large areas. New concepts relating statistical shear strength data to liquifaction potential are presented. The somewhat limited data indicate that western coal sludge is coarser with higher permeabilities and shear strengths than the eastern deposits.
Mining; Physical properties; Chemical properties; Coal; Coal mines; Waste disposal; Waste treatment; Hazardous materials; Hazardous waste; Work operations; Coal seams
IH; Report of Investigations
NTIS Accession No.
NTIS#: PB 266 724
Page last reviewed: October 29, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division