Method of preventing corrosion in concrete pipe

Details Method of preventing corrosion in concrete pipe Method of preventing corrosion in concrete pipe

1996-01-04

1997-04-15

Bell, Janyce

Coating processes

Interior of hollow article coating

Spraying

427136, 427230, 4274192, 427427, B05D 722

Patent

active

056207441

ABSTRACT:
A method of treating concrete pipe is carried out by providing an aqueous lime slurry supply having a lime solids content above 35% by weight of the slurry. This is mixed within an amount of dispersing agent and may contain an alkali metal hydroxide so that the slurry has a pumpable viscosity. A spray assembly is located within the interior of the pipe. The lime slurry is pumped from this lime slurry supply through the spray assembly so that the lime slurry is applied to the interior surfaces of the pipe to neutralize acids thereon. Applying the lime spray also provides a protective coating of the lime slurry on the interior surfaces of the pipe.

REFERENCES:
patent: 1106778 (1914-08-01), Campbell
patent: 4175975 (1979-11-01), MacWilliams et al.
patent: 4427643 (1984-01-01), Fowler
patent: 4454172 (1984-06-01), Heinrich et al.
patent: 4464353 (1984-08-01), Hains
patent: 4610801 (1986-09-01), Matthews et al.
patent: 4627888 (1986-12-01), Engdahl
patent: 4678685 (1987-07-01), Hasson et al.
patent: 4717503 (1988-01-01), Makino et al.
patent: 4762590 (1988-08-01), Engdahl
patent: 4849128 (1989-07-01), Timmons et al.
patent: 4985080 (1991-01-01), Jung
patent: 5051281 (1991-09-01), Legrand et al.
"Sewer Crown Spray Process Cuts Corrosion," Water Environment Technology, Jan. 1995, pp. 15-16.

Affiliated with

Also associated with

Rating

Method of preventing corrosion in concrete pipe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of preventing corrosion in concrete pipe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of preventing corrosion in concrete pipe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-359149