Electromechanical performance of geopolymer binder with conductive fillers
Intrinsic self-sensing concrete (ISSC) is an ongoing research topic where it provides another option for structure health monitoring without the use of embedded, attached or remote sensors in concrete. ISSC provides great mechanical properties and self-sensing capability by showing the change in...
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Format: | Final Year Project |
Language: | English |
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Nanyang Technological University
2021
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Online Access: | https://hdl.handle.net/10356/154454 |
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Institution: | Nanyang Technological University |
Language: | English |
Summary: | Intrinsic self-sensing concrete (ISSC) is an ongoing research topic where it provides another
option for structure health monitoring without the use of embedded, attached or remote sensors
in concrete. ISSC provides great mechanical properties and self-sensing capability by showing
the change in electrical resistivity. Past studies have proven that adding functional fillers such as
fibers alters the interface of the matrix of the concrete and improve the mechanical and sensing
properties. In this study, microscale carbon fiber (CF) and nanoscale graphene oxide (GO),
reduced graphene oxide (rGO) and carbon nanofiber (CNF) will be added into geopolymer
concrete to determine if the functional filler could improve the mechanical and sensing properties
of the composite. The resistivity of ISSC is measured using a two-probe method under cyclic
compression loading. The effect of micro and nano functional fillers on fractional change in
resistivity will be assessed to determine the sensitivity of the composite to stress changes. |
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