Composite structural reinforcement repair device
a structural reinforcement and composite technology, applied in the direction of building repairs, mechanical devices, pipe protection against damage/wear, etc., can solve the problems of physical damage or deterioration, affecting the piping system which is subject to deterioration, structural members can be degraded, etc., to inhibit crack propagation and high strength
Active Publication Date: 2017-07-27
CSC OPERATING CO LLC
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- Description
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- Application Information
AI Technical Summary
Benefits of technology
The use of nanomaterials in the fabric and resin matrix improves the durability and resistance to crack propagation, leading to more permanent repairs that can withstand natural forces like seismic activity, reducing the need for frequent replacements and maintaining structural integrity.
Problems solved by technology
Structural members can be degraded, i.e. physically damaged or deteriorated due to cyclic loading fatigue enhanced by corrosion, erosion, temperature fluctuations, natural causes, third party causes, and time.
The problems resulting from damage and deterioration affect piping systems which are subject to deterioration due to several factors, including sulfate reducing bacteria, galvanic action, and third party damage.
It also affects other structures such as piling, concrete columns, petroleum storage tanks, etc. which are subject to deterioration and damage.
This procedure can become costly and inconvenient for the pipeline owner as well as the general public.
The question of permanence of some FRP composite repairs has become of great concern to pipeline owners due to delaminations due to fatigue of some composite systems.
Consequently, these failed FRP's have provided questionable permanent repairs.
Method used
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[0034]It will be appreciated that the present invention may take many forms and embodiments. In the following description, some embodiments of the invention are described and numerous details are set forth to provide an understanding of the present invention. Those skilled in the art will appreciate, however, that the present invention may be practiced without those details and that numerous variations and modifications from the described embodiments may be possible. The following description is thus intended to illustrate and not to limit the present invention.
[0035]One embodiment of a fabric device according to the present invention comprises a fabric which is formed from fibers which themselves contain nanomaterials. In yet another embodiment of a fabric device in accordance with the present invention the fabric has nanomaterials applied to it.
[0036]FIG. 1A shows schematically a method in which fabric (“Fabric”) is provided and then has nanomaterial applied to it. The fabric is a...
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Abstract
A fabric device for application on a degraded area of a member for rehabilitating the member. A fabric device in accordance with the present invention comprises at least one layer of composite fabric, which has a first surface and a second surface spaced-apart from the first surface, nanomaterial on at least one surface of the fabric, and a resin matrix on the fabric over the nanomaterial. The resin matrix may also comprise nanomaterial therein.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a Continuation-in-Part of prior U.S. application Ser. No. 12 / 947,762 filed on Nov. 16, 2010, which application being hereby incorporated by reference herein in its entirety. The '762 application, in turn, claims the benefit of the filing date of U.S. Provisional Application No. 61 / 281,410 filed Nov. 17, 2009.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention is directed to a device for repairing or reinforcing a member such as a tubular member, a pipeline, or structural support, which device comprises fabric and nanomaterial toughening and strengthening material and a polymer matrix.[0004]2. Description of Related Art[0005]A wide variety of devices, apparatuses, systems and methods for repairing or reinforcing members such as pipe, pipelines, and structural members are known, including, but not limited to, the disclosures in U.S. Pat. Nos. 4,700,752; 5,348,801; 5,445,848; 5,632...
Claims
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IPC IPC(8): F16L55/168D06M11/77D06M15/564D06M11/74F16L55/175D06M15/55
CPCF16L55/1683F16L55/175D06M11/77D06M15/564D06M11/74D06M15/55E04G23/0218F16L55/1656F16L55/1686F16L57/02F16L57/06E04C5/07E04C3/34B29C65/483B29C65/4865B29C73/10
Inventor WITHERS, GENEVIEVE JANETSOUZA, JAMES MICHAEL
Owner CSC OPERATING CO LLC