System for reinforcing structure using site-customized materials

• US 7,946,088 B1
• Filed: 01/22/2009
• Issued: 05/24/2011
• Est. Priority Date: 01/22/2009
• Status: Expired due to Fees

• Current Assignee: FYFE CO. LLC (Aegion Corp.)
• Original Assignee: Edward R. Fyfe, Michael Karantzikis
• Inventors: Karantzikis, Michael, Fyfe, Edward R.
• Primary Examiner(s): Glessner; Brian E
• Assistant Examiner(s): Maestri; Patrick
• Application Number:
  US12/321,530
• Time in Patent Office: 852 Days
• Field of Search: 523/44, 523/091.3, 523/091.4, 523/091.7, 523/51, 523/61, 525/145, 527/414, 527/414.1, 527/421.6, 527/450.9, 527/461, 527/452, 523/62, 524/13, 524/49, 524/54, 428/98, 428/103, 428/104, 428/111, 428/139, 428/140, 428/223, 156/71, 156/91, 156/92, 156/94, 156/187, 156/188, 156/257, 264/257, 264/258, 264/228, 264/229
• US Class Current: 52/344
• CPC Class Codes: E04G 2023/0251 by using fiber reinforced plastic elements
• CPC Class Codes: E04G 23/0218 Increasing or restoring the load-bearing capacity of building construction elements E04G23/0203 and E04G23/0266 take precedence

Abstract

System and method for reinforcing structures includes basalt textile 20 connected to surfaces of the structure 100 with fiber anchors 30. Textile spreads forces and increases ductility of structure. Textile may connect multiple structural elements together, including walls, floors, columns, beams, and roofs. Textile is covered with mortar 50 customized to match color and texture of structure by use of locally obtained grit, aggregate, or colorant. Basalt fiber textile is preferred to avoid degradation of textile from alkaline components of mortar 50.

Claims

1. A method of reinforcing structures;

including the steps of;

attaching a fabric composed of alkaline-resistant fibers to a surface of the structure to be reinforced with ductile attachment means;

spreading a layer of a hardenable slurry over the attached fabric such that the slurry covers and embeds the fabric;

the slurry including mineral particles that are similar in texture, color, or both, to the original surface of the structure wherein the step of attaching the fabric to the surface with ductile attachment means comprises the sub-steps of;

boring a hole through the alkaline-resistant fabric and into the structure;

inserting a length of fiber roving into the borehole, with a free end protruding above the fabric;

backfilling the borehole with suitable backfill material; and

attaching the free end of the roving to the surface being reinforced and over the fabric with a suitable adhesive.

2. The method of claim 1, the step of spreading a layer of hardenable slurry over the fabric comprising:

spreading a slurry containing cementitious or polymer matrix and further including mineral materials quarried in a location geographically close to the structure to be repaired.

3. The method of claim 2, the step of spreading a slurry containing sand, ground rock, or minerals comprising:

spreading a slurry including sand, ground rock, or mineral materials that produce a finished appearance substantially the same in color and texture as the original surface of the structure.

4. A method of reinforcing a structure including the steps of:

creating a customized surface finishing mortar by mixing mineral materials with a hardenable fluid matrix;

the customized surface finishing mortar formulated so as to produce a finished appearance substantially the same in color and texture as the original surface of the structure;

spreading a fabric composed of alkaline-resistant fibers over surfaces of the structure to be reinforced;

attaching the fabric to the structure by ductile attachment means;

spreading a layer of customized surface finishing mortar over the attached fabric;

wherein the step of attaching the fabric to the surface with ductile attachment means comprises the sub-steps of;

boring a hole through the alkaline-resistant fabric and into the structure;

inserting a length of fiber roving into the borehole, with a free end protruding above the fabric;

backfilling the borehole with suitable backfill material; and

attaching the free end of the roving to the surface being reinforced and over the fabric with a suitable adhesive.

5. The method of claim 4;

the step of creating a customized surface finishing mortar further including;

obtaining mineral materials from a source geographically local to the structure.

6. The method of claim 4, the step of spreading a fabric comprising:

spreading a fabric composed of alkaline-resistant fibers over one or more surfaces of the structure to be reinforced.

7. The method of claim 4, wherein the step of creating a customized surface finishing material includes the sub-steps of:

obtaining a suitable hardenable fluid matrix from the group of;

cementitious mortar, ductile cement, epoxy, polyurethane, or acrylic.

8. The method of claim 4, wherein the structure to be reinforced is a historical building that must substantially retain its original appearance after being reinforced.

9. The method of claim 4, the step of spreading a fabric comprising:

spreading a fabric composed of basalt fibers over one or more surfaces of the structure to be reinforced.

10. A system for reinforcement of a structure;

including;

alkaline-resistant textile wrapped over or around a structural element of the structure to be reinforced;

ductile connecting means for connecting said textile to the structural element wherein said ductile connecting means comprises a plurality of fiber anchors; and

a mortar layer including;

mineral materials selected to match the existing color, texture, or both of the structure.

11. The system of claim 10, said alkaline-resistant textile comprising:

a fabric woven from fibers of basalt.

12. The system of claim 10, said alkaline-resistant textile comprising:

a fabric woven or knit from high-strength fibers of basalt, alkaline-resistant glass, polyaramide, or carbon.