||Investigation of Use of Gel Material for Mine Sealing.
Chun, Nevill K. ;
||Dravo Corp., Pittsburgh, Pa.
||EPA-14010-EKW; R2-73-135,; 10880
( Mines(Excavations) ;
( Seals(Stoppers) ;
Ground water ;
Water pollution ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||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)
||Paper copy available from GPO $1.25 as EPI.23/2.
|NTIS Title Notes
||Environmental protection technology series.
|PUB Date Free Form
||8I; 64I; 68D