Progress in Research on Carbon Nanotubes Reinforced Cementitious Composites

Table 1

Material properties of typical fibers.

Material	Diameter/thickness (nm)	Elastic modulus (GPa)	Tensile strength (GPa)	Rupture Elongation (%)	Density (kg/m^3)	Surface area (m^2/g)	Aspect ratio	Reference
Carbon fiber	6000–20,000	7–400	0.4–5	1.7	1770	0.134	100–1000	[145, 146]
Polymeric fiber	18,000–30,000	3–5	0.3–0.9	18	900	0.225	160–1000	[147, 148]
Glass fiber	5000–10,000	72	3.45	4.8	2540	0.3	600–1500	[149, 150]
Steel fiber	50,000–900,000	200	1.5	3.2	7800	0.02	45–80	[151, 152]
CNTs	10–60	1000	11–63	12	1330	70–400	1000–10000	[26, 38]