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Polymeric Sealant Used to Stop Shale Degradation in Coal Mines.

Authors
Franklin-JC; Weverstad-KD; Marquardt-RF
Source
NTIS: PB 264 294 :8 pages
Link
NIOSHTIC No.
10000967
Abstract
The Bureau of Mines substantially reduced shale degradation in a coal mine by two spray coat applications of a water-base epoxy sealant. More than 12,700 square feet of passageways were treated, and in 18 months only one failure occurred. This failure was due to improper spray application. Material costs averaged 13 cents per square foot, and labor costs were 7 cents per square foot. Labor included moving all materials into the mine, the setup time for each of the areas coated, and application of coatings.
Publication Date
19770101
Document Type
IH;
Fiscal Year
1977
NTIS Accession No.
PB-264294
NTIS Price
A02
Identifying No.
TPR 103
NIOSH Division
SRC;
Source Name
NTIS: PB 264 294
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