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Fwd: Re: Concrete Wraps

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XXsys Technologies, Inc. of San Diego utilizes an automated, continuous
carbon fiber wrapping system for seismic retrofit and corrosion damage
repair of concrete columns. They have also introduced a high quality
system for strengthening beams, girders, joints, walls, utilizing  a
pre-impregnated epoxy/carbon fiber woven fabric which is wrapped around
the structural members. Both systems utilize fully monitored elevated
temperature on site curing, assuring consistent, verifiable quality,
effectiveness and durability.

The automated wrapping system underwent extensive testing at the UCSD
Powell Labs, under the direction of Prof.Frieder Seible and Prof.Nigel
Priestley.It has been succesfully utilized for retrofit of large
Caltrans bridge columns and smaller parking structure columns.Three
sizes of automated machines are available.

The technology was successfully applied on elements of a severely
corroded bridge on Interstate 80, in Utah, by special request of UDOT.
Further testing and research of retrofit/rehab applications, including
wall and beam strengthening is being done at the Univ. of Utah, Salt
Lake City, under the direction of Prof. Larry Reaveley and his

An article on the application of this technology, authored by James
Korff, PE, Director of Engineering Services, and Larry Cercone, PhD,
Vice President of Engineering and Operations, will appear in the May
issue of ASCE's Civil Engineering Magazine.

For additional information or assistance in the use of this new
technology, check out the XXsys Web Page at or
contact: James Korff at 619-974-8200 ext. 233 or jkorff(--nospam--at) to
receive a technical info packet and video.

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Richard Lewis, P.E.
Missionary TECH Team

The service mission like-minded Christian organizations
may turn to for technical assistance and know-how.