Method of grouting a drill hole

Details Method of grouting a drill hole Method of grouting a drill hole

1979-03-26

1980-12-02

Corbin, David H.

Hydraulic and earth engineering

Earth treatment or control

Chemical

166293, 405266, E02D 312, E21D 2002

Patent

active

042368499

ABSTRACT:
Calcium sulphate hemihydrate plaster slurry comprising a set-inhibiting agent, for example, a polymer or copolymer of an acid having the formula R.sup.1 HC.dbd.CR.sup.2 --COOH wherein R.sup.1 and R.sup.2 are hydrogen or methyl. The invention also includes a method of rapid setting of the inhibited slurry by mixing therewith a promoter comprising a salt of iron, copper or aluminium.

REFERENCES:
patent: 3892101 (1975-07-01), Gruber

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