System and method for repairing and/or strengthening a porous structure, and unidirectional carbon fiber material for use therewith
AssigneeStabl-Wall, LLC
InventorsNicholas D. DiCello, Theresa DePamphilis
Life of this patent
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Abstract
A system and method for repairing and/or strengthening a structure. The system may include an epoxy paste filler, a primer, an saturant/bonding adhesive, and a unidirectional carbon fiber. The method may include application of a paste filler, a primer, a bonding saturant and a unidirectional carbon fiber. The carbon fiber may be applied between application of a first bonding saturant layer and a second bonding saturant layer. The amount and/or length of the unidirectional carbon fiber may be based on the type of damage (e.g., the type and/or location of a crack) to the structure.
Claims16
A system for repairing and/or strengthening a porous structure comprising:
- a high viscosity epoxy paste;
- a low viscosity primer;
- a saturant;
- and
- a unidirectional carbon fiber.
A method for repairing and/or strengthening a porous structure comprising:
- preparing a surface of the porous structure to be repaired and/or strengthened by removing detritus;
- preparing a high viscosity epoxy paste for application by combining a resin and a hardener in a 3:1 ratio by weight;
- applying the high viscosity epoxy paste to the surface of the porous structure;
- preparing a low viscosity primer for application by combining a resin and a hardener in a 3:1 ratio by weight;
- applying the low viscosity primer to the surface of the porous structure such that the low viscosity primer covers at least a portion of the high viscosity epoxy paste;
- preparing a saturant for application by combining a resin and a hardener in a 3:1 ratio by weight;
- applying the saturant to the surface of the porous structure such that the saturant covers at least a portion of the primer and the epoxy paste;
- applying a unidirectional carbon fiber to the surface of the porous structure over at least a portion of the saturant;
- applying the saturant over the unidirectional carbon fiber.
A unidirectional carbon fiber material comprising:
- a plurality of untwisted carbon fibers, each comprising a high strength modulus fiber having a weight in the range of about 4 oz/sq yd to about 11 oz/sq yd,
- wherein the plurality of carbon fibers are in a parallel alignment, and wherein the unidirectional carbon fiber has a tensile strength of at least about 370 ksi.
Dependencies are inferred from the claim text.