Method for repairing failed waterstops and products relating to same
US4793162A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 7, 1986 |
| Grant date | Dec 27, 1988 |
| Priority date | — |
| Expiry date | Aug 7, 2006 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B1/6809
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A waterstop repair method and structure for use in both new and existing concrete structures in which a reinforced neoprene diaphragm is anchored to the concrete structure using corrosion-resistant anchors, fiberglass hold-down strips and polyester felt adhesive strips saturated with epoxy adhesive. The diaphragm is supported by a pressure injected hydrophylic urethane foam which is pumped beneath the diaphragm which thereby provides support for the diaphragm and fills the interstices of the existing concrete joint to prevent water leakage in and around a failed waterstop and to thereby form an integral, water-tight structure for new and existing concrete joints.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.