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Physical Properties of Western Coal Waste Materials.

Authors
Backer-RR; Busch-RA; Atkins-LA
Source
NTIS#: PB 266 724 :29 pages
Link
NIOSHTIC No.
10001798
Abstract
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.
Publication Date
19770101
Document Type
IH; Report of Investigations
Fiscal Year
1977
NTIS Accession No.
PB-266724
NTIS Price
A03
Identifying No.
RI 8216
NIOSH Division
SRC;
Source Name
NTIS#: PB 266 724
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