Contributo in atti di convegno, 2021, ENG, 10.1007/978-3-030-69551-4_32

Sustainable Graphene-Based Mortar and Lightweight Mortar Composites

Lama G.C.; De Luca Bossa F.; Verdolotti L.; Galzerano B.; Santillo C.; Alfano B.; Miglietta M.L.; Polichetti T.; Lavorgna M.

Institute for Polymers, Composites and Biomaterials (IPCB--CNR), P.le E. Fermi 1, Portici (NA), Institute for Polymers, Composites and Biomaterials (IPCB--CNR), P.le E. Fermi 1, Portici (NA), Italy, , Italy; Energy Technology Department--Innovative Device Laboratory, ENEA C.R. Portici, P.le E. Fermi 1, Portici (NA), Energy Technology Department--Innovative Device Laboratory, ENEA C.R. Portici, P.le E. Fermi 1, Portici (NA), Italy, , Italy

"Compact and lightweight" graphene-based mortars were produced and their piezo-resistive behavior was analyzed. Such property is exploitable in the production of functional building materials, which could work as stress-strain sensors. First, graphene-isopropyl alcohol dispersion was synthesized through Liquid Phase Exfoliation and the few layered structure was evidenced via Raman spectroscopy. Afterward, "compact and lightweight" mortars-graphene based composites were produced by using, respectively, cement and cement/diatomite as matrix, the previously mentioned graphene dispersion and a suitable amount of water. The morphological, structural, thermal and electro-mechanical properties of the obtained materials were analyzed. The mix-design here discussed can pave the way for a new kind of eco-friendly, multi-applicative, multi-responsive building material.

AISEM 2020 Annual Conference on Sensors and Microsystems, pp. 239–248, 11/05/2021

Keywords

Stress/strain sensors, Graphene, Cement-based mortars

CNR authors

Santillo Chiara, Galzerano Barbara, De Luca Bossa Ferdinando, Lavorgna Marino, Verdolotti Letizia, Lama Giuseppe Cesare

CNR institutes