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International Journal of Concrete Structures and Materials

Table 2 Physical properties on cement and nano- and micro-SiO2 [10]

From: Analysis of Mechanical Properties and Microstructure of Nano- and Micro-SiO2 Materials as Cementitious Composite Binder

Product name

Ingredients

Size (nm)

Specific surface area (m2/g)

Specific gravity

OPC

CaO, SiO2, Al2O3, Fe2O3, etc.

20,000

0.38

3.10

Silica fume

SiO2

99.6

100–150

18–20

2.22

Micro-silica

96.08

22.65

20.8

2.11

Nano-silica

99.78

14.05

203.8

1.40

Fumed silica

99.75

13.60

144.0

1.51

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