Carbonized nano/microparticles for enhanced mechanical properties and electromagnetic interference shielding of cementitious materials
Rao Arsalan KHUSHNOOD1,*(),Sajjad AHMAD1,Luciana RESTUCCIA1,Consuelo SPOTO1,Pravin JAGDALE4,Jean-Marc TULLIANI4,Giuseppe Andrea FERRO1
1. Department of Structural, Geotechnical and Building Engineering (DISEG), Politecnico di Torino, 10129 Torino, Italy 2. Nust Institute of Civil Engineering (NICE), National University of Sciences and Technology (NUST), 44000 Islamabad, Pakistan 3. Mirpur University of Science and Technology (MUST), 10250 Mirpur, Azad Kashmir, Pakistan 4. Department of Applied Science and Technology (DISAT), Politecnico di Torino, 10129 Torino, Italy
In the present work, carbon nano/microparticles obtained by controlled pyrolysis of peanut (PS) and hazelnut (HS) shells are presented. These materials were characterized by Raman spectroscopy and field emission-scanning electron microscopy (FE-SEM). When added to cement paste, up to 1 wt%, these materials led to an increase of the cement matrix flexural strength and of toughness. Moreover, with respect to plain cement, the total increase in electromagnetic radiation shielding effect when adding 0.5 wt% of PS or HS in cement composites is much higher in comparison to the ones reported in the literature for CNTs used in the same content.
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