Pumpable backfill material of high strength
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United States of America Patent
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-
May 24, 1988
Grant Date -
N/A
app pub date -
Jul 2, 1986
filing date -
Jul 4, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An aqueous slurry of backfill material e.g. slimes, includes a settable material and an activator therefor, e.g. pulverized fuel ash and lime, and a lubricant e.g. clay and a plasticizer, e.g. a lignosulphonate so that the slurry can be pumped over long distances but will then set to develop high early strength.
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