Self-monitoring of smart concrete column incorporating CNT/NCB composite fillers modified cementitious sensors
•Cementitious sensors were fabricated with electrostatic self-assembled fillers.•Sensors were embedded into concrete columns to develop smart components.•Self-sensing properties of sensor/smart column were evaluated under loading. In this paper, cementitious sensors were fabricated with electrostati...
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| Published in: | Construction & building materials 2019-03, Vol.201, p.127-137 |
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Self-monitoring of smart concrete column incorporating CNT/NCB composite fillers modified cementitious sensors |
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Ding, Siqi Ruan, Yanfeng Yu, Xun Han, Baoguo Ni, Yi-Qing |
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Analysis Cementitious sensor Cements (Building materials) CNT/NCB composite fillers Concrete column Electric properties Mechanical properties Nanotubes Self-sensing Sensors Structural health monitoring |
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Construction & building materials, 2019-03, Vol.201, p.127-137 |
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•Cementitious sensors were fabricated with electrostatic self-assembled fillers.•Sensors were embedded into concrete columns to develop smart components.•Self-sensing properties of sensor/smart column were evaluated under loading.
In this paper, cementitious sensors were fabricated with electrostatic self-assembled carbon nanotubes (CNT)/nano carbon black (NCB) composite fillers, and embedded into concrete columns to develop smart structural components. Self-sensing properties of the sensor/smart column were evaluated under cyclic loading and monotonic loading through measuring the fractional change in resistivity (FCR) of sensor. The effect of sensor on the mechanical strength of column was also studied. Experimental results showed that whether the sensor is embedded in concrete column or not, its piezoresistivity presents high stability and repeatability under cyclic loading within the elastic regime. The relationship between stress/strain and FCR of the sensor under monotonic loading obeys polynomial formulas. As the sensor is embedded into column, regardless of the concrete strength grade is C30 or C50, the piezoresistive behavior of the embedded sensor undergoes two phases, which is different from that of the sensor before embedded. This difference between the output signal characteristics results from the Poisson’s ratio and elastic modulus differences of sensor and concrete. In addition, the presence of sensor does not impact the bearing capacity of concrete column. The developed sensor is therefore suitable to be embedded into prefabricated components to make smart building products which can be calibrated for structural monitoring in real applications. |
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ISSN: 0950-0618 |
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In this paper, cementitious sensors were fabricated with electrostatic self-assembled carbon nanotubes (CNT)/nano carbon black (NCB) composite fillers, and embedded into concrete columns to develop smart structural components. Self-sensing properties of the sensor/smart column were evaluated under cyclic loading and monotonic loading through measuring the fractional change in resistivity (FCR) of sensor. The effect of sensor on the mechanical strength of column was also studied. Experimental results showed that whether the sensor is embedded in concrete column or not, its piezoresistivity presents high stability and repeatability under cyclic loading within the elastic regime. The relationship between stress/strain and FCR of the sensor under monotonic loading obeys polynomial formulas. As the sensor is embedded into column, regardless of the concrete strength grade is C30 or C50, the piezoresistive behavior of the embedded sensor undergoes two phases, which is different from that of the sensor before embedded. This difference between the output signal characteristics results from the Poisson’s ratio and elastic modulus differences of sensor and concrete. In addition, the presence of sensor does not impact the bearing capacity of concrete column. The developed sensor is therefore suitable to be embedded into prefabricated components to make smart building products which can be calibrated for structural monitoring in real applications.</description><identifier>ISSN: 0950-0618</identifier><identifier>EISSN: 1879-0526</identifier><identifier>DOI: 10.1016/j.conbuildmat.2018.12.203</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Analysis ; Cementitious sensor ; Cements (Building materials) ; CNT/NCB composite fillers ; Concrete column ; Electric properties ; Mechanical properties ; Nanotubes ; Self-sensing ; Sensors ; Structural health monitoring</subject><ispartof>Construction & building materials, 2019-03, Vol.201, p.127-137</ispartof><rights>2018 Elsevier Ltd</rights><rights>COPYRIGHT 2019 Reed Business Information, Inc. (US)</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c463t-72f24ef883311cd5be519ce33feae5b2925b76e2bd8dbcbe68547da48fca50653</citedby><cites>FETCH-LOGICAL-c463t-72f24ef883311cd5be519ce33feae5b2925b76e2bd8dbcbe68547da48fca50653</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0950061818332008$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,787,791,3570,27992,27993,46169</link.rule.ids></links><search><creatorcontrib>Ding, Siqi</creatorcontrib><creatorcontrib>Ruan, Yanfeng</creatorcontrib><creatorcontrib>Yu, Xun</creatorcontrib><creatorcontrib>Han, Baoguo</creatorcontrib><creatorcontrib>Ni, Yi-Qing</creatorcontrib><title>Self-monitoring of smart concrete column incorporating CNT/NCB composite fillers modified cementitious sensors</title><title>Construction & building materials</title><description>•Cementitious sensors were fabricated with electrostatic self-assembled fillers.•Sensors were embedded into concrete columns to develop smart components.•Self-sensing properties of sensor/smart column were evaluated under loading.
In this paper, cementitious sensors were fabricated with electrostatic self-assembled carbon nanotubes (CNT)/nano carbon black (NCB) composite fillers, and embedded into concrete columns to develop smart structural components. Self-sensing properties of the sensor/smart column were evaluated under cyclic loading and monotonic loading through measuring the fractional change in resistivity (FCR) of sensor. The effect of sensor on the mechanical strength of column was also studied. Experimental results showed that whether the sensor is embedded in concrete column or not, its piezoresistivity presents high stability and repeatability under cyclic loading within the elastic regime. The relationship between stress/strain and FCR of the sensor under monotonic loading obeys polynomial formulas. As the sensor is embedded into column, regardless of the concrete strength grade is C30 or C50, the piezoresistive behavior of the embedded sensor undergoes two phases, which is different from that of the sensor before embedded. This difference between the output signal characteristics results from the Poisson’s ratio and elastic modulus differences of sensor and concrete. In addition, the presence of sensor does not impact the bearing capacity of concrete column. The developed sensor is therefore suitable to be embedded into prefabricated components to make smart building products which can be calibrated for structural monitoring in real applications.</description><subject>Analysis</subject><subject>Cementitious sensor</subject><subject>Cements (Building materials)</subject><subject>CNT/NCB composite fillers</subject><subject>Concrete column</subject><subject>Electric properties</subject><subject>Mechanical properties</subject><subject>Nanotubes</subject><subject>Self-sensing</subject><subject>Sensors</subject><subject>Structural health monitoring</subject><issn>0950-0618</issn><issn>1879-0526</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqNkUFr3DAQhU1podu0_8Gl19qRZFu2j-nStIWQHJqehSyN3FlsadHIhf77atkeEthDEOgJ5nsPNK8oPnJWc8bl9aE2wU8bLnbVqRaMDzUXWZtXxY4P_VixTsjXxY6NHauY5MPb4h3RgTEmhRS7wv-ExVVr8JhCRD-XwZW06pjKnGsiJMiPZVt9id6EeAxRpxO2v3-8vt9_ycP1GAgz5nBZIFK5BosOwZYGVvAJE4aNSgJPIdL74o3TC8GH_3pV_Lr9-rj_Xt09fPuxv7mrTCubVPXCiRbcMDQN58Z2E3R8NNA0DjR0kxhFN_USxGQHO5kJ5NC1vdXt4IzumOyaq-LTOXfWCyj0LqSozYpk1E3X91IOomWZqi5QM3iIegke8pfgOV9f4POxsKK5aPj8xDBthB4oX4Tz70Sz3oie4-MZNzEQRXDqGDGX8Vdxpk51q4N6Urc61a24yNpk7_7shbzWPwhRkUHwBixGMEnZgC9I-Qfjqbs0</recordid><startdate>20190320</startdate><enddate>20190320</enddate><creator>Ding, Siqi</creator><creator>Ruan, Yanfeng</creator><creator>Yu, Xun</creator><creator>Han, Baoguo</creator><creator>Ni, Yi-Qing</creator><general>Elsevier Ltd</general><general>Reed Business Information, Inc. (US)</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20190320</creationdate><title>Self-monitoring of smart concrete column incorporating CNT/NCB composite fillers modified cementitious sensors</title><author>Ding, Siqi ; Ruan, Yanfeng ; Yu, Xun ; Han, Baoguo ; Ni, Yi-Qing</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c463t-72f24ef883311cd5be519ce33feae5b2925b76e2bd8dbcbe68547da48fca50653</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Analysis</topic><topic>Cementitious sensor</topic><topic>Cements (Building materials)</topic><topic>CNT/NCB composite fillers</topic><topic>Concrete column</topic><topic>Electric properties</topic><topic>Mechanical properties</topic><topic>Nanotubes</topic><topic>Self-sensing</topic><topic>Sensors</topic><topic>Structural health monitoring</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ding, Siqi</creatorcontrib><creatorcontrib>Ruan, Yanfeng</creatorcontrib><creatorcontrib>Yu, Xun</creatorcontrib><creatorcontrib>Han, Baoguo</creatorcontrib><creatorcontrib>Ni, Yi-Qing</creatorcontrib><collection>CrossRef</collection><jtitle>Construction & building materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ding, Siqi</au><au>Ruan, Yanfeng</au><au>Yu, Xun</au><au>Han, Baoguo</au><au>Ni, Yi-Qing</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Self-monitoring of smart concrete column incorporating CNT/NCB composite fillers modified cementitious sensors</atitle><jtitle>Construction & building materials</jtitle><date>2019-03-20</date><risdate>2019</risdate><volume>201</volume><spage>127</spage><epage>137</epage><pages>127-137</pages><issn>0950-0618</issn><eissn>1879-0526</eissn><abstract>•Cementitious sensors were fabricated with electrostatic self-assembled fillers.•Sensors were embedded into concrete columns to develop smart components.•Self-sensing properties of sensor/smart column were evaluated under loading.
In this paper, cementitious sensors were fabricated with electrostatic self-assembled carbon nanotubes (CNT)/nano carbon black (NCB) composite fillers, and embedded into concrete columns to develop smart structural components. Self-sensing properties of the sensor/smart column were evaluated under cyclic loading and monotonic loading through measuring the fractional change in resistivity (FCR) of sensor. The effect of sensor on the mechanical strength of column was also studied. Experimental results showed that whether the sensor is embedded in concrete column or not, its piezoresistivity presents high stability and repeatability under cyclic loading within the elastic regime. The relationship between stress/strain and FCR of the sensor under monotonic loading obeys polynomial formulas. As the sensor is embedded into column, regardless of the concrete strength grade is C30 or C50, the piezoresistive behavior of the embedded sensor undergoes two phases, which is different from that of the sensor before embedded. This difference between the output signal characteristics results from the Poisson’s ratio and elastic modulus differences of sensor and concrete. In addition, the presence of sensor does not impact the bearing capacity of concrete column. The developed sensor is therefore suitable to be embedded into prefabricated components to make smart building products which can be calibrated for structural monitoring in real applications.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.conbuildmat.2018.12.203</doi></addata></record> |