Record Display for the EPA National Library Catalog


Main Title Investigation of Use of Gel Material for Mine Sealing.
Author Chun, Nevill K. ;
CORP Author Dravo Corp., Pittsburgh, Pa.
Year Published 1973
Report Number EPA-14010-EKW; R2-73-135,; 10880
Stock Number PB-221 247
Additional Subjects ( Mines(Excavations) ; Sealing) ; ( Seals(Stoppers) ; Mines(Excavations)) ; Grout ; Fillers ; Slurries ; Grouting ; Ground water ; Water pollution ; Gels ; Concrete ; Bulkheads ; Rocks ;
Library Call Number Additional Info Location Last
NTIS  PB-221 247 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 73p
Laboratory testing of commercially available chemical grouts was conducted to evaluate their potential use, in conjunction with a cheap filler, for remote sealing of mine voids. By close control of the setting time and proper distribution of the grout slurry it was believed that a mine seal could be placed through a borehole from the surface without the benefit of retaining bulkheads. A slurry mix consisting of an acrylamide grout with flyash or mine refuse as a filler was found to produce a strong controllable gel which resisted chemical attack in the laboratory over an eleven week exposure period. An attempt to demonstrate a novel technique for application of the selected grout slurry in a mine entry with high flow was not successful. (Modified author abstract)