Claims
- 1. A method for restoring a concrete structure having an interior surface susceptible to deterioration by contact with corroding agents wherein portions of said structure including portions of said interior surface have been removed as a result of said deterioration to create void spaces where said structure existed, comprising the steps of:a) positioning polyvinyl chloride thermoplastic liners sealed to each other where said interior surface has been removed to define void space between said thermoplastic liners and said concrete structure; b) hydrogenating a resin selected from the group consisting of polyurethane resin, epoxy resin and combinations thereof; c) applying said hydrogenated resin along with a curing agent comprising at least an isocyanate in said void space; d) allowing said resin and the curing agent to form a foam to a density of at least ten pounds per cubic foot, and to set to form a foam supporting said thermoplastic liners; e) painting a surface of each of said thermoplastic liners, which faces said concrete, with a composition comprising a polymer wherein the polymer is a copolymer of 2-propenoic acid, 2-hydroxypropyl ester, chloroethene and ethenyl acetate the polymer having a density of approximately 1.37 grams per cubic centimeter at 25 degrees Centigrade and a molecular weight of approximately 8,000 to 10,000.
- 2. The method of claim 1 further comprising the step of securing said polyvinyl chloride thermoplastic liners together with channels to define seams between said thermoplastic liner, and wherein said channels have surfaces abutting said thermoplastic liners, wherein said surfaces abutting said thermoplastic liners have applied thereto said composition.
- 3. The method of claim 1 wherein said resin comprises an epoxy resin and said curing agent comprises an amine.
- 4. The method of claim 1 wherein said density of said foam is in the range of from ten pounds to fifty-five pounds per cubic foot.
CONTINUATION-IN-PART APPLICATION
This application is a continuation of Ser. No. 08/416,191 filed Apr. 4, 1995, now abandoned, which is a continuation-in-part of Application Serial No. 08/387,240 filed Feb. 13, 1995, now abandoned, in the name of Richard L. Bertram, Applicant herein, for “Material and Method for Welding a Seam between Thermoplastic Liner Sheets,” priority of filing date for all subject matter common to this and said parent application being herby claimed.
US Referenced Citations (19)
Foreign Referenced Citations (5)
Number |
Date |
Country |
2912479 |
Oct 1980 |
DE |
475769 |
Mar 1992 |
EP |
2123919 |
Feb 1984 |
GB |
54-133575 |
Oct 1979 |
JP |
WO 9002851 |
Mar 1990 |
WO |
Continuations (1)
|
Number |
Date |
Country |
Parent |
08/416191 |
Apr 1995 |
US |
Child |
09/566761 |
|
US |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
08/387240 |
Feb 1995 |
US |
Child |
08/416191 |
|
US |