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Journal of Nanomaterials
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Journal of Nanomaterials
/
2013
/
Article
/
Tab 2
/
Research Article
Study on Notch Sensitivity of Fracture Properties of Concrete Containing Nano-SiO
2
Particles and Fly Ash
Table 2
Physical properties of nano-SiO
2
.
Average particle size (nm)
SiO
2
content (%)
Specific surface area (m
2
/g)
Apparent density (g/cm
3
)
PH value
30
99.5
0.055
5–7