{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,25]],"date-time":"2026-03-25T19:26:18Z","timestamp":1774466778996,"version":"3.50.1"},"reference-count":40,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2018,11,2]],"date-time":"2018-11-02T00:00:00Z","timestamp":1541116800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sustainability"],"abstract":"<jats:p>This paper presents the resistivity and piezoresistivity behavior of cement-based mortars manufactured with graphene nanoplatelet filler (GNP), virgin carbon fibers (VCF) and recycled carbon fibers (RCF). GNP was added at 4% of the cement weight, whereas two percentages of carbon fibers were chosen, namely 0.05% and 0.2% of the total volume. The combined effect of both filler and fibers was also investigated. Mortars were studied in terms of their mechanical properties (under flexure and compression) and electrical resistivity. Mortars with the lowest electrical resistivity values were also subjected to cyclic uniaxial compression to evaluate the variations in electrical resistivity as a function of strain. The results obtained show that mortars have piezoresistive behavior only if they are subjected to a prior drying process. In addition, dry specimens exhibit a high piezoresistivity only when loaded with 0.2 vol.% of VCF and 0.4 wt.% of GNP plus 0.2 vol.% RCF, with a quite reversible relation between their fractional change in resistivity (FCR) and compressive strain.<\/jats:p>","DOI":"10.3390\/su10114013","type":"journal-article","created":{"date-parts":[[2018,11,5]],"date-time":"2018-11-05T04:26:39Z","timestamp":1541391999000},"page":"4013","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":69,"title":["Evaluating the Self-Sensing Ability of Cement Mortars Manufactured with Graphene Nanoplatelets, Virgin or Recycled Carbon Fibers through Piezoresistivity Tests"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9399-0810","authenticated-orcid":false,"given":"Alberto","family":"Belli","sequence":"first","affiliation":[{"name":"Department of Materials, Environmental Sciences and Urban Planning, Universit\u00e0 Politecnica delle Marche, via Brecce Bianche 12, INSTM Research Unit, Ancona 60131, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0891-5649","authenticated-orcid":false,"given":"Alessandra","family":"Mobili","sequence":"additional","affiliation":[{"name":"Department of Materials, Environmental Sciences and Urban Planning, Universit\u00e0 Politecnica delle Marche, via Brecce Bianche 12, INSTM Research Unit, Ancona 60131, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0220-5785","authenticated-orcid":false,"given":"Tiziano","family":"Bellezze","sequence":"additional","affiliation":[{"name":"Department of Materials, Environmental Sciences and Urban Planning, Universit\u00e0 Politecnica delle Marche, via Brecce Bianche 12, INSTM Research Unit, Ancona 60131, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5805-6822","authenticated-orcid":false,"given":"Francesca","family":"Tittarelli","sequence":"additional","affiliation":[{"name":"Department of Materials, Environmental Sciences and Urban Planning, Universit\u00e0 Politecnica delle Marche, via Brecce Bianche 12, INSTM Research Unit, Ancona 60131, Italy"},{"name":"Institute of Atmospheric Sciences and Climate, National Research Council (ISAC-CNR), Via Gobetti 101, Bologna 40129, Italy"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0556-1056","authenticated-orcid":false,"given":"Paulo","family":"Cachim","sequence":"additional","affiliation":[{"name":"Department of Civil Engineering (DECIVIL), Universidade de Aveiro, RISCO Research Unit, Aveiro 3810-193, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2018,11,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1016\/j.cemconcomp.2014.11.013","article-title":"Influence of binders and aggregates on VOCs adsorption and moisture buffering activity of mortars for indoor applications","volume":"57","author":"Tittarelli","year":"2015","journal-title":"Cem. Concr. Compos."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Giosu\u00e8, C., Belli, A., Mobili, A., Citterio, B., Biavasco, F., Ruello, M.L., and Tittarelli, F. (2017). Improving the Impact of Commercial Paint on Indoor Air Quality by Using Highly Porous Fillers. Buildings, 7.","DOI":"10.3390\/buildings7040110"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"655","DOI":"10.1016\/j.proeng.2016.08.724","article-title":"Effect of Biomass Waste Materials as Unconventional Aggregates in Multifunctional Mortars for Indoor Application","volume":"161","author":"Mobili","year":"2016","journal-title":"Procedia Eng."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"115","DOI":"10.1016\/j.compositesa.2018.05.019","article-title":"Multifunctional cementitious composites modified with nano titanium dioxide: A review","volume":"111","author":"Li","year":"2018","journal-title":"Compos. Part A Appl. Sci. Manuf."},{"key":"ref_5","doi-asserted-by":"crossref","unstructured":"Giosu\u00e8, C., Pierpaoli, M., Mobili, A., Ruello, M.L., and Tittarelli, F. (2017). Influence of Binders and Lightweight Aggregates on the Properties of Cementitious Mortars: From Traditional Requirements to Indoor Air Quality Improvement. Materials, 10.","DOI":"10.3390\/ma10080978"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"232","DOI":"10.1016\/j.conbuildmat.2018.03.106","article-title":"Effect of pore structure on the performance of photocatalytic lightweight lime-based finishing mortar","volume":"171","author":"Yu","year":"2018","journal-title":"Constr. Build. Mater."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"1448","DOI":"10.1016\/j.apenergy.2018.01.014","article-title":"Multifunctional smart concretes with novel phase change materials: Mechanical and thermo-energy investigation","volume":"212","author":"Pisello","year":"2018","journal-title":"Appl. Energy"},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Coppola, L., Coffetti, D., and Lorenzi, S. (2016). Cement-Based Renders Manufactured with Phase-Change Materials: Applications and Feasibility. Adv. Mater. Sci. Eng., 2016.","DOI":"10.1155\/2016\/7254823"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"8","DOI":"10.1016\/j.jobe.2018.06.011","article-title":"Mechanical, electrical and self-sensing properties of cementitious mortars containing short carbon fibers","volume":"20","author":"Donnini","year":"2018","journal-title":"J. Build. Eng."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"3342","DOI":"10.1016\/j.carbon.2012.01.031","article-title":"Carbon materials for structural self-sensing, electromagnetic shielding and thermal interfacing","volume":"50","author":"Chung","year":"2012","journal-title":"Carbon N. Y."},{"key":"ref_11","doi-asserted-by":"crossref","unstructured":"Ubertini, F., Alessandro, A.D., Materazzi, A.L., Laflamme, S., and Downey, A. (2017, January 6\u20139). Novel nanocomposite clay brick for strain sensing in structural masonry. Proceedings of the Environment and Electrical Engineering and 2017 IEEE Industrial and Commercial Power Systems Europe (EEEIC\/I&CPS Europe), Milan, Italy.","DOI":"10.1109\/EEEIC.2017.7977598"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"167","DOI":"10.1680\/adcr.2004.16.4.167","article-title":"Electrically conductive cement-based materials","volume":"4","author":"Chung","year":"2004","journal-title":"Adv. Cem. Res."},{"key":"ref_13","first-page":"589","article-title":"Structural health monitoring of civil infrastructure","volume":"365","author":"Brownjohn","year":"2007","journal-title":"Philos. Trans. R. Soc. Lond. A Math. Phys. Eng. Sci."},{"key":"ref_14","first-page":"171","article-title":"Piezoresistivity-based strain sensing in carbon fiber-reinforced cement","volume":"104","author":"Wen","year":"2007","journal-title":"ACI Mater. J."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1143","DOI":"10.1617\/s11527-006-9211-z","article-title":"Electrical conductivity of drying cement paste","volume":"40","author":"Rajabipour","year":"2007","journal-title":"Mater. Struct."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"110","DOI":"10.1016\/j.measurement.2014.09.048","article-title":"Intrinsic self-sensing concrete and structures: A review","volume":"59","author":"Han","year":"2015","journal-title":"Measurement"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"505","DOI":"10.1016\/j.carbon.2006.10.024","article-title":"Partial replacement of carbon fiber by carbon black in multifunctional cement-matrix composites","volume":"45","author":"Wen","year":"2007","journal-title":"Carbon N. Y."},{"key":"ref_18","doi-asserted-by":"crossref","unstructured":"Chung, D.D.L. (1994). Carbon Fiber Composites, Butterworth-Heinemann.","DOI":"10.1016\/B978-0-08-050073-7.50012-9"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"57","DOI":"10.1016\/j.micromeso.2016.02.015","article-title":"Roll-to-roll fabrication of high surface area mesoporous carbon with process-tunable pore texture for optimization of adsorption capacity of bulky organic dyes","volume":"227","author":"Qiang","year":"2016","journal-title":"Microporous Mesoporous Mater."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"2530","DOI":"10.1021\/la404964c","article-title":"Nanoporous nonwoven fibril-like morphology by cooperative self-assembly of poly(ethylene oxide)-block-poly(ethyl acrylate)-block-polystyrene and phenolic resin","volume":"30","author":"Deng","year":"2014","journal-title":"Langmuir"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"113","DOI":"10.1016\/j.conbuildmat.2014.09.040","article-title":"Nano reinforced cement and concrete composites and new perspective from graphene oxide","volume":"73","author":"Chuah","year":"2014","journal-title":"Constr. Build. Mater."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"1178","DOI":"10.1016\/j.pmatsci.2011.03.003","article-title":"Graphene based materials: Past, present and future","volume":"56","author":"Singh","year":"2011","journal-title":"Prog. Mater. Sci."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"555","DOI":"10.1016\/j.compositesb.2014.08.005","article-title":"Use of 2D Graphene Nanoplatelets (GNP) in cement composites for structural health evaluation","volume":"67","author":"Le","year":"2014","journal-title":"Compos. Part B Eng."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"44","DOI":"10.1016\/j.pmatsci.2015.02.002","article-title":"Recent development in 2D materials beyond graphene","volume":"73","author":"Gupta","year":"2015","journal-title":"Prog. Mater. Sci."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Sobolev, K., and Shah, V. (2015). Mechanical Response and Strain Sensing of Cement Composites Added with Graphene Nanoplatelet Under Tension. Nanotechnology in Construction, Springer.","DOI":"10.1007\/978-3-319-17088-6"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"565","DOI":"10.1016\/j.conbuildmat.2016.10.024","article-title":"Experimental investigation on mechanical and piezoresistive properties of cementitious materials containing graphene and graphene oxide nanoplatelets","volume":"127","author":"Liu","year":"2016","journal-title":"Constr. Build. Mater."},{"key":"ref_27","first-page":"341","article-title":"Carbon fiber reinforced concrete as an intrinsically smart concrete for damage assessment during static and dynamic loading.pdf","volume":"93","author":"Chen","year":"1996","journal-title":"ACI Mater. J."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"59","DOI":"10.1016\/j.cemconcomp.2017.04.009","article-title":"Self-sensing piezoresistive cement composite loaded with carbon black particles","volume":"81","author":"Monteiro","year":"2017","journal-title":"Cem. Concr. Compos."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"360","DOI":"10.1016\/j.sna.2006.08.003","article-title":"Electrode design, measuring method and data acquisition system of carbon fiber cement paste piezoresistive sensors","volume":"135","author":"Han","year":"2007","journal-title":"Sens. Actuators A Phys."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"10","DOI":"10.1016\/j.cemconres.2015.05.007","article-title":"Enhancement of barrier properties of cement mortar with graphene nanoplatelet","volume":"76","author":"Du","year":"2015","journal-title":"Cem. Concr. Res."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"360","DOI":"10.1016\/j.compositesb.2016.01.046","article-title":"The impact resistance and mechanical properties of self-compacting concrete reinforced with recycled CFRP pieces","volume":"92","author":"Mastali","year":"2016","journal-title":"Compos. Part B Eng."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"642","DOI":"10.1016\/j.conbuildmat.2018.06.201","article-title":"Graphene-based nanosheets for stronger and more durable concrete: A review","volume":"183","author":"Shamsaei","year":"2018","journal-title":"Constr. Build. Mater."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"402","DOI":"10.1016\/j.conbuildmat.2017.04.058","article-title":"Effects of graphene oxide agglomerates on workability, hydration, microstructure and compressive strength of cement paste","volume":"145","author":"Li","year":"2017","journal-title":"Constr. Build. Mater."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"160","DOI":"10.1016\/j.conbuildmat.2015.12.072","article-title":"Effect of mixing methods on the electrical properties of cementitious composites incorporating different carbon-based materials","volume":"104","author":"Emami","year":"2016","journal-title":"Constr. Build. Mater."},{"key":"ref_35","unstructured":"Mobili, A., Belli, A., Giosu\u00e8, C., Pierpaoli, M., Bastianelli, L., Mazzoli, A., Ruello, M.L., Bellezze, T., and Tittarelli, F. (2017). Enhancing the mechanical, durability, depolluting and electrical properties of multifunctional lime mortars by commercial or waste carbonaceous fillers addition. Cem. Concr. Compos., submit for publication."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"379","DOI":"10.1061\/(ASCE)0899-1561(2005)17:4(379)","article-title":"Dispersion of Short Fibers in Cement","volume":"17","author":"Chung","year":"2005","journal-title":"J. Mater. Civ. Eng."},{"key":"ref_37","doi-asserted-by":"crossref","unstructured":"Gopalakrishnan, K., Birgisson, B., Taylor, P., and Attoh-Okine, N.O. (2011). Multifunctional and smart nanotube reinforced cement-based materials. Nanotechnology in Civil Infrastructure, Springer.","DOI":"10.1007\/978-3-642-16657-0"},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"599","DOI":"10.1106\/104538902031861","article-title":"Piezoresistive Cement-Based Materials for Strain Sensing","volume":"13","author":"Chung","year":"2002","journal-title":"J. Intell. Mater. Syst. Struct."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"339","DOI":"10.1007\/s11595-011-0226-0","article-title":"Piezoresistivity of carbon fiber graphite cement-based composites with CCCW","volume":"26","author":"Fan","year":"2011","journal-title":"J. Wuhan Univ. Technol. Mater. Sci. Ed."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"329","DOI":"10.1177\/1045389X08094190","article-title":"Piezoresistive cement-based strain sensors and self-sensing concrete components","volume":"20","author":"Ou","year":"2009","journal-title":"J. Intell. Mater. Syst. Struct."}],"container-title":["Sustainability"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2071-1050\/10\/11\/4013\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T15:27:34Z","timestamp":1760196454000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2071-1050\/10\/11\/4013"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,11,2]]},"references-count":40,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2018,11]]}},"alternative-id":["su10114013"],"URL":"https:\/\/doi.org\/10.3390\/su10114013","relation":{},"ISSN":["2071-1050"],"issn-type":[{"value":"2071-1050","type":"electronic"}],"subject":[],"published":{"date-parts":[[2018,11,2]]}}}