Sell 97% Densified Silicon Dioxide powder silica fume
Sell 97% Densified Silicon Dioxide powder silica fume
Sell 97% Densified Silicon Dioxide powder silica fume
Sell 97% Densified Silicon Dioxide powder silica fume
Sell 97% Densified Silicon Dioxide powder silica fume
Sell 97% Densified Silicon Dioxide powder silica fume
Sell 97% Densified Silicon Dioxide powder silica fume
Sell 97% Densified Silicon Dioxide powder silica fume

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Sell 97% Densified Silicon Dioxide powder silica fume

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Model No. : SD
Brand Name : SUNMIX

Product description

Specifications 1.Micro silica 85%-98%

2. silica for concret

3.Low permeability, increase strength

4.Meet the ASTM 1240

5.high purity

.Introduction : Silica fume, also called as micro silica, silica dust, which is a by-product of producing silicon metal or ferrosilicon alloys. Silica fume consists primarily of amorphous (non-crystalline) silicon dioxide (SiO2). Because of its fine particles, large surface area, and the high SiO2 content, silica fume is a very reactive pozzolan when used in concrete. The quality of silica fume is specified by ASTM C 1240 and AASHTO M 307. 2.Application: Silica fume is widely used in concrete field: High-performance project, such as bridge, airport, hydropowder station, seawall, railway projects. 1)Enhance the mechanical properties of concrete. 
High strength and early strength has been used in substructures of high-performance concrete. 2)Improve the durability of concrete:
Significant improvements can be seen in the permeability resistance, abrasion resistance, anti-corrosion against chlorideion and anti-freezing of concrete. 3)Enhance consructability.
Improve shotconrete, increase easly strength, control temperature contractors can take advantage of the properties of silica fume concrete to expedite projects or to achieve properties that migh otherwise be impossible to achieve. 3.Features: 1) High early strength.
2) Greater impermeability.
3) High ultimate compressive strengths.
4) Substantially greater resistance to corrosion. 4.Specification

Analysis

Result

Result

Result

Result

Result

SF85

SF88

SF90

SF92

SF93

SiO2(%)(min.)

85.05

88.05

90.05

92.05

93.05

Fe2O3(%)

0.78

0.44

0.21

0.25

0.20

Al2O3(%)

0.29

0.20

0.21

0.25

0.20

CaO(%)

0.39

0.31

0.31

0.36

0.21

K2O+ Na2O(%)

0.29

0.24

0.22

0.20

0.20

Moisture(%)

3.05

2.55

2.05

2.05

1.03

Loss on Ignition (L.O.I) @975OC(%)

3.38

3.10

2.38

1.75

1.50

Bulk Density (kg/m³)

500-700

500-700

500-700

500-700

500-700

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