Method of grouting using a vacuum

Details Method of grouting using a vacuum Method of grouting using a vacuum

1989-04-19

1990-09-11

Silbaugh, Jan H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

138 97, 156294, 264 35, 264 36, 264101, 264154, 264262, 264516, 264571, 405154, 405155, B32B 3106, B32B 3500, E03F 306, F16L 55165

Patent

active

049560328

ABSTRACT:
A method of filling an annular space between inner and outer coaxially arranged pipes while providing the option of maintaining fluid flow through the inner pipe includes optionally establishing fluid flow through the inner pipe; installing first and second seals in the annular space between the two spaced apart pipes at first and second ends of the pipes and inserting one end of a vacuum tube into the annular space through the first seal at the high point in the first seal. A grout tube is inserted into the annular space through the second seal at the high point of the second seal. A vacuum is applied to the second end of the vacuum tube and a grout mixture is applied to an opposite end of the grout tube. A sufficient vacuum is maintained within the annular space for such a time period to draw the grout mixture from the second end to the first end of the pipes to completely fill the annular space.

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