Specification

Undensified Silica Fume USF850

✣.   Very Small Particle Size.

✣.   Strong Absorbability.

✣.   High Purity.

 

USF 920
USF 940
USF 960

PRODUCT DETAILS

 

Test Item

 

Typical

 

SiO2 (%)

 

88.20

 

MgO (%)

 

0.33

 

Elemental Silicon (%)

 

0.09

 

SO3 (%)

 

0.84

 

CL (%)

 

0.002

 

Free CaO (%)

 

0.91

 

PH 

 

7

 

Moisture (%)

 

0.60

LOI (%)

 

2.09

 

Specific Surface (BET) (m2/g)

 

21.38

 

Activity Index (%)

 

108 @ 7days

 

Retained on 45-μm (No.325) (%)

 

1.52

 

Fluidity (cm)

 

19.6