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2 039 206

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C1

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IPC

(21) (22)

Application

5016277/03, 1991-09-12

(22)

Actual filing date

1991-09-12

(45)

Published

1995-07-09

(72)

Inventor

Okishev N.A.Ivanov A.G.Karpenko I.V.

(73)

Holder

Kompleksnaja Tematicheskaja Ehkspeditsija Gosudarstvennogo Geologicheskogo Predprijatija

GROUTING MORTAR Russian patent published in 1995 - IPC

Abstract RU 2039206 C1

FIELD: borehole drilling. SUBSTANCE: grouting mortar has, mass Portland cement (PC) 55.41 66.57, polyethylene oxide (PEO) 0.136 0.25, nitriletrimethylphosphoric acid (NPA) - 0.004 0.01 and water the rest. PEO and NPA are dissolved in water. Produced solution is mixed with PC. Features of mortar: increased sedimentary stability, decreased speed of filtration under increased water-solid ratio up to 0.8. EFFECT: grouting mortar is used in borehole drilling. 1 tbl

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RU 2 039 206 C1

Authors

Okishev N.A.

Ivanov A.G.

Karpenko I.V.

Dates

1995-07-09—Published

1991-09-12—Filed

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