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University of Houston

1. Pakeetharan, Srisothinathan. CHARACTERIZATION OF SENSING REPAIR MATERIALS.

Degree: Civil and Environmental Engineering, Department of, 2012, University of Houston

In order to monitor construction, repairs, and maintenance of various types of structures, it is critical to develop materials used for structural applications with sensing capabilities. In this study, polymer and cement based structural grouting materials with compressive strengths in the range of 30 to 70 MPa were modified to have sensing capabilities. Piezoresistivity was considered as the sensing property and materials were tested under various service conditions in terms of strength and sensitivity. In addition, real-time application of such smart materials for low stress disaster monitoring was investigated. Also a cementitious repair material typically used in steel pipes as protective coating was investigated to evaluate the field performance in terms of shrinkage, water absorption, and strength characteristics. For the piezoresistive cementitious and polymeric materials the resistivity change was over 10 times more than the engineering strain. A specially designed polymeric composite cantilever beam detected applied pressure as small as 1.4 kPa (~0.2 psi). The compressive stress-strain relationships of the polymer and cementitious composite were modeled using a non-linear relationship and the constitutive behavior of the piezoresistive material was modeled using incremental nonlinear stress-resistivity relationship. Advisors/Committee Members: Vipulanandan, Cumaraswamy (advisor), Ayoub, Ashraf S. (committee member), Song, Gangbing (committee member).

Subjects/Keywords: self-sensing; repair material; polymeric grout; cement grout; piezoresistivity; real time monitoring; low stress monitoring; stress-resistivity model; Civil engineering

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Pakeetharan, S. (2012). CHARACTERIZATION OF SENSING REPAIR MATERIALS. (Thesis). University of Houston. Retrieved from http://hdl.handle.net/10657/777

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Pakeetharan, Srisothinathan. “CHARACTERIZATION OF SENSING REPAIR MATERIALS.” 2012. Thesis, University of Houston. Accessed November 15, 2019. http://hdl.handle.net/10657/777.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Pakeetharan, Srisothinathan. “CHARACTERIZATION OF SENSING REPAIR MATERIALS.” 2012. Web. 15 Nov 2019.

Vancouver:

Pakeetharan S. CHARACTERIZATION OF SENSING REPAIR MATERIALS. [Internet] [Thesis]. University of Houston; 2012. [cited 2019 Nov 15]. Available from: http://hdl.handle.net/10657/777.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Pakeetharan S. CHARACTERIZATION OF SENSING REPAIR MATERIALS. [Thesis]. University of Houston; 2012. Available from: http://hdl.handle.net/10657/777

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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