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Proceedings Paper

Self repair of impact, higher energy impact, and earthquake damage in infrastructure systems made of polymers and concrete
Author(s): Carolyn Dry
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Paper Abstract

Self repair for structures, which I invented in 1989, is designed to incorporate hollow vessels, usually fibers, which will release a repairing agent when the structure is damaged, so that the repairing agent will fill delaminations, voids and cracks, thus healing both matrix voids and rebonding fibers. The repaired damage will enable continued function and prevent further degradation to catastrophic failure. Repaired damage will enable applications to be utilized under current standard operating procedure without reduction in performance due to impacts The benefits are: 1) safety of bridges and highways, lives saved, money saved 2) reduced maintenance expenditure, 3) extended life cycle and reduced maintenance costs 4) lighter weight infrastructure components such as bridges due to a reduction in overdesign safety measures. The benefit is truly in the economy, readiness, and effectiveness of all infrastructure applications Two materials are important in infrastructure as the matrix material, polymers and concrete. Natural Process Design, Inc. works in both areas to develop self repair.. A small part of that research is presented here.

Paper Details

Date Published: 19 April 2007
PDF: 6 pages
Proc. SPIE 6531, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2007, 65310S (19 April 2007); doi: 10.1117/12.715865
Show Author Affiliations
Carolyn Dry, Natural Process Design, Inc. (United States)


Published in SPIE Proceedings Vol. 6531:
Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2007
H. Felix Wu; Aaron A. Diaz; Peter J. Shull, Editor(s)

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