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Polymeric Materials for Underground Support.

Authors
Franklin-JC; Fraley-JE; Burnham-RE; Brandt-LW
Source
NTIS: PB 231 275 :16 pages
Link
NIOSHTIC No.
10000970
Abstract
The Spokane Mining Research Center of the federal Bureau of Mines is placing major emphasis on chemical stabilization as part of the ground support program. Development of polymeric material suitable for bonding rock fractures around the mine opening is one phase of the program. Some of the problems that must be considered are viscosity, applicability, adhesion, cure times, strength, toxicity, and flammability. Epoxies and polyesters were investigated, but shrinkage in polyesters caused redirected effort toward epoxies. Test results with the latter showed that bonded fractures in mine- roof strata were stronger than in the virgin rock. Further tests showed that polymeric materials have good potential for bonding, and in conjunction with polymer roof bolts, are expected to result in an economic and useful new support concept.
Publication Date
19740101
Document Type
IH; Report of Investigations
Fiscal Year
1974
NTIS Accession No.
PB-231275
NTIS Price
A03
Identifying No.
RI 7836
NIOSH Division
SRC;
Source Name
NTIS: PB 231 275
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