Evaluation of nano/micro composites for nondestructive repair of delaminated structures

Giri Venkiteela, Matthew Klein, Husam Najm, Perumalsamy Balaguru

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Results of an experimental evaluation of nano/micro inorganic composites are presented in this paper. Alkali alumino silicates matrices reinforced with nano/micro fibers were used to repair (glue) fractured concrete prisms and test them in three point bending. Further, shear strength of matrices were also obtained using push-up tests. The variables evaluated were mix composition, temperature and specimen size. It is observed that flexural tensile strength of 1000 psi can be achieved from the developed matrices. In some instances when repaired broken prisms were tested, the failure occurred by creation of a new fracture surface. The developed matrices had the fluidity to fill very thin delamination, which can be pumped to reach delamination through small drilled holes. The results show that the compositions obtained in this study have excellent potential for application involving the repair of delamination.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
DOIs
StatePublished - May 15 2012
EventNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2012 - San Diego, CA, United States
Duration: Mar 12 2012Mar 15 2012

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8347
ISSN (Print)0277-786X

Other

OtherNondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2012
CountryUnited States
CitySan Diego, CA
Period3/12/123/15/12

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Keywords

  • Concrete repair
  • Crack filling
  • Delamination
  • Inorganic polymer
  • Nano composite

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  • Cite this

    Venkiteela, G., Klein, M., Najm, H., & Balaguru, P. (2012). Evaluation of nano/micro composites for nondestructive repair of delaminated structures. In Proceedings of SPIE - The International Society for Optical Engineering [83470M] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 8347). https://doi.org/10.1117/12.915664