Research Article
Piezoresistivity of Cement Matrix Composites Incorporating Multiwalled Carbon Nanotubes due to Moisture Variation
Table 1
Properties of carboxyl MWCNTs.
| | Outside diameter (nm) | Length (μm) | W(ash) (%) | -COOH (%) | Purity (%) | Specific surface area (m2/g) | Electric conductivity (s/cm) |
| | 20–30 | 10–30 | <1.5 | 1.23 | >95 | 110 | 100 |
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