An Effective Method for Hybrid CNT/GNP Dispersion and Its Effects on the Mechanical, Microstructural, Thermal, and Electrical Properties of Multifunctional Cementitious Composites

Table 9

Comparison of the electrical resistances for carbon nanoparticle-reinforced cementitious composites.

Dispersion method	Weight fraction (%)	Nanoparticle type	Electrical resistivity (Ω·m)	References
Superplasticizer and ultrasonication	5	GNP	21.02	[10]
Dry mechanical mixing	5	GNP	78.20	[10]
Superplasticizer and high-speed mixer	5	GNP	27.96	[10]
PVP and ultrasonication	0.7	CNT	24	[99]
Mixing by superplasticizer during mortar blending	10	Carbon black	4.53	[100]
Mixing by superplasticizer during mortar blending	2	Short carbon fiber	2.4	[101]
Pluronic F-127 and TBP, 3 h sonication, 40°C	1 (half by half)	GNP+CNT	15.3	Present study
SDBS and TBP, 3 h sonication, 40°C	1 (half by half)	GNP+CNT	47.76	Present study