Carbon Nanotubes in Cementitious Composites: Dispersion, Implementation, and Influence on Mechanical Characteristics

Table 1

Properties of carbon nanotubes.

Internal diameter	Approximately 5–12 nm
Outer diameter	Approximately 30–50 nm
Length	10–20 µm
Bulk density	0.22 gcm^−3
True density	2.1 gcm^−3