Tailoring the piezoresistive sensing of CNT reinforced mortar sensors

Maria S. Konsta-Gdoutos, Panagiotis A. Danoglidis, Surendra P. Shah

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

2 Scopus citations

Abstract

The piezoresistive response and self-sensing ability of carbon nanotube reinforced mortar sensors have been investigated. The study aims on optimizing the development of a self-sensing nanoreinforced cementbased sensor for monitoring and evaluating the condition of concrete elements, in real time applications. It has been shown that the piezoresistive response of the nanomodified mortars was substantially enhanced just by adding a low amount of carbon nanotubes (CNTs), 0.1 wt%. Resistance measurements, using direct current (DC) and alternating current (AC), were conducted under the application of cyclic or monotonic compressive loading. The results show the sensor's great ability to detect crack propagation and damage accumulation at all stages of deformation up to failure.

Original languageEnglish (US)
Title of host publicationNanotechnology for Improved Concrete Performance
EditorsMahmoud Reda Taha, Mohamed T. Bassuoni
PublisherAmerican Concrete Institute
Pages12-26
Number of pages15
ISBN (Electronic)9781641950763
StatePublished - Oct 9 2019
Externally publishedYes
EventNanotechnology for Improved Concrete Performance at the Concrete Convention and Exposition 2016 - Philadelphia, United States
Duration: Oct 23 2016Oct 27 2016

Publication series

NameAmerican Concrete Institute, ACI Special Publication
VolumeSP-335
ISSN (Print)0193-2527

Conference

ConferenceNanotechnology for Improved Concrete Performance at the Concrete Convention and Exposition 2016
Country/TerritoryUnited States
CityPhiladelphia
Period10/23/1610/27/16

Keywords

  • Carbon nanotubes
  • Fracture toughness
  • Mortars
  • Multifunctionallity
  • Piezoresistivity
  • Self-sensing ability
  • Young's modulus

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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