Research Article
Mechanical Properties of SiO2-Coated Carbon Fiber-Reinforced Mortar Composites with Different Fiber Lengths and Fiber Volume Fractions
Figure 12
SEM images of CFRM composite specimens after strength tests (5000 or 1000 times): (a) SiO2-coated carbon fiber and (b) uncoated carbon fiber.
| (a) | 
| (b) |