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Proceedings Paper

Evaluation of nano/micro composites for nondestructive repair of delaminated structures
Author(s): Giri Venkiteela; Matthew Klein; Husam Najm; Balaguru Perumalsamy
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Paper 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.

Paper Details

Date Published: 5 April 2012
PDF: 9 pages
Proc. SPIE 8347, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2012, 83470M (5 April 2012); doi: 10.1117/12.915664
Show Author Affiliations
Giri Venkiteela, Rutgers, The State Univ. of New Jersey (United States)
Matthew Klein, Rutgers, The State Univ. of New Jersey (United States)
Husam Najm, Rutgers, The State Univ. of New Jersey (United States)
Balaguru Perumalsamy, Rutgers, The State Univ. of New Jersey (United States)


Published in SPIE Proceedings Vol. 8347:
Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2012
Andrew L. Gyekenyesi, Editor(s)

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