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Optimizing the Fabrication of Cementitious Sensors for Structural Health Monitoring.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Optimizing the Fabrication of Cementitious Sensors for Structural Health Monitoring./
Author:	Heirani, Niloofarsadat.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
Description:	72 p.
Notes:	Source: Masters Abstracts International, Volume: 83-01.
Contained By:	Masters Abstracts International83-01.
Subject:	Civil engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28314718
ISBN:	9798522943141

Optimizing the Fabrication of Cementitious Sensors for Structural Health Monitoring.
Heirani, Niloofarsadat.

Optimizing the Fabrication of Cementitious Sensors for Structural Health Monitoring. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 72 p.

Source: Masters Abstracts International, Volume: 83-01.

Thesis (M.A.S.)--University of Toronto (Canada), 2021.

This item must not be sold to any third party vendors.

Cementitious sensors function based on the principle of piezoresistivity, which is defined as the dependence of electrical resistivity on applied strain. These sensors incorporate conductive materials within a cementitious matrix. Fiber dispersion quality, mix design, and fabrication methods significantly impact the sensitivity, repeatability, and stability of the sensors. In this study, cementitious sensors were fabricated using coal-tar pitch-based carbon fibers as the conductive phase and the Taguchi method of optimization was utilized to find the most effective mix design and fabrication procedures. Four-probe electrical resistivity measurement under compressive mechanical loading determined the efficiency of each fabrication setting. The fiber dispersion quality was evaluated via several image processing techniques. Optimization results indicated that sensor samples containing 15% volume fraction of carbon fiber, general use Portland cement and silica fume, and mixed with centrifugal mixer produce the best results with better repeatability.

ISBN: 9798522943141Subjects--Topical Terms:

860360
Civil engineering.
Subjects--Index Terms:

Carbon fiber cementitious sensors

Optimizing the Fabrication of Cementitious Sensors for Structural Health Monitoring.
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300 $a 72 p.
500 $a Source: Masters Abstracts International, Volume: 83-01.
500 $a Advisor: Azhari, Fae.
502 $a Thesis (M.A.S.)--University of Toronto (Canada), 2021.
506 $a This item must not be sold to any third party vendors.
520 $a Cementitious sensors function based on the principle of piezoresistivity, which is defined as the dependence of electrical resistivity on applied strain. These sensors incorporate conductive materials within a cementitious matrix. Fiber dispersion quality, mix design, and fabrication methods significantly impact the sensitivity, repeatability, and stability of the sensors. In this study, cementitious sensors were fabricated using coal-tar pitch-based carbon fibers as the conductive phase and the Taguchi method of optimization was utilized to find the most effective mix design and fabrication procedures. Four-probe electrical resistivity measurement under compressive mechanical loading determined the efficiency of each fabrication setting. The fiber dispersion quality was evaluated via several image processing techniques. Optimization results indicated that sensor samples containing 15% volume fraction of carbon fiber, general use Portland cement and silica fume, and mixed with centrifugal mixer produce the best results with better repeatability.
590 $a School code: 0779.
650 4 $a Civil engineering. $3 860360
650 4 $a Materials science. $3 543314
650 4 $a Mechanical engineering. $3 649730
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650 4 $a Fiber optics. $3 535869
650 4 $a Optimization. $3 891104
650 4 $a Measurement techniques. $3 3560647
650 4 $a Noise. $3 598816
650 4 $a Hydration. $3 738666
650 4 $a Strain gauges. $3 3563166
650 4 $a Concrete mixing. $3 3681395
650 4 $a Carbon black. $3 3681396
650 4 $a Wire. $3 3681397
650 4 $a Sensors. $3 3549539
650 4 $a Microscopy. $3 540544
650 4 $a Stainless steel. $3 3560388
650 4 $a Arrays. $3 3681398
650 4 $a Cement. $3 862625
650 4 $a Curing. $3 3681399
650 4 $a Expected values. $3 3563993
650 4 $a Carbon fiber reinforcement. $3 3681400
653 $a Carbon fiber cementitious sensors
653 $a Cementitious sensors
653 $a Optimization
653 $a Structural health monitoring
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710 2 $a University of Toronto (Canada). $b Civil Engineering. $3 2104053
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