Piezo-resistive characteristics of graphene-based cement materials

• Main Authors: Rehman, S.K.U., Ibrahim, Z., Javed, M.F., Hanif, M.U.
• Format: Conference or Workshop Item
• Language: English
• Published: 2017
• Subjects: TA Engineering (General). Civil engineering (General)
• Online Access: http://eprints.um.edu.my/17704/1/full_paper_1265_icsv24-PIEZO-RESISTIVE_CHARACTERISTICS_OF_GRAPHENE_BASED.pdf; http://eprints.um.edu.my/17704/

iezo-resistive characteristics of cement-based materials were investigated using gra-phene nanoplatelets (GNPs). These phenomena provide composite materials with the ca-pability to sense their own strain. In this study, very small amount of GNP (i.e., 0.03% by weight of cement) was used. Results show that compressive strength and strain capability are enhanced by 30% and 80%, respectively, after the addition of GNPs. Electrical resis-tivity values are decreased by 42% for GNP–cement composite. The fractional change in resistivity confirms that the sensitivity of the GNP–cement composite increases with com-pressive loading. Therefore, GNP-based cement composites can be an appropriate choice for self-sensing purposes.