Specification

Densified Silica Fume DSF940

✣.   Very Small Particle Size.

✣.   High Pozzolanic Activity Index.

✣.   High Compressive Strength.

DSF 850
DSF 900
DSF 920

PRODUCT DETAILS

 

Test Item

 

ASTM C 1240

BS EN 13263:2005

AS/NZS 3582.3:2016

JIS A 6207:2006

Typical

 

SiO2 (%)

 

> 85

> 85

> 85

> 85

95.55

 

MgO (%)

 

     

< 5

0.21

 

Elemental Silicon (%)

 

 

< 0.4

 

< 0.4

0.12

 

SO3 (%)

 

 

< 2.0

< 3.0

< 3.0

0.69

 

CL (%)

 

 

< 0.3

 

< 0.1

0.001

 

Free CaO (%)

 

 

< 1.0

 

< 1.0

0.72

 

Total Alkalis (Na2O) (%)

 

       

0.71

 

Moisture (%)

 

< 3.0

 

< 3.0

< 3.0

0.60

LOI (%)

 

< 6.0

< 4.0

< 6.0

< 5.0

1.95

 

Specific Surface (BET) (m2/g)

 

> 15

15--35  

> 15

22.09

 

Activity Index (%)

 

> 105 @ 7days

> 100 @28 days

 

> 95 @ 7days

>105 @ 28days

120 @ 7days

 

Retained on 45-μm (No.325) (%)

 

< 10

      2.14

 

Variation from Avg. Retained on 45 μm (No. 325) (%)

 

< 5

      1.28