Table 4.

Comparison of GF values for different piezoresistive cement-based strain sensors (PCSS).

Cement Composites	Content of Carbon Nanomaterials (wt.%)	GF	Increment of Compressive Strength When Compared to Control
GO/CC	0.05	16	Increase by 24%
CNTs/CC [33]	0.25	16	Increase by 7%
CNF/CC [31]	1	10	No significant variations.
GNP/CC [14]	2	8	Weak by 20%