Specification :

Silica Fume NR920 is a dry powder available in two forms,densified silica fume and undensified silica fume. .

Silica Fume NR920 is a pozzolanic material that consists primarily of fine silicon dioxide particles in a non-crystalline form.

Silica Fume NR920 meets the requirements of ASTM C-1240 and contains a minimum of 92% silicon dioxide (SiO2)

Technical Data : Index items Standard Value
SiO2(Silicon Dioxide) Min. 92.0%
Fe2O3 (Iron Oxide) Max. 0.50%
Al2O3(Aluminium Oxide) Max. 0.70%
CaO(Calcium Oxide) Max. 0.50%
MgO(Magnesium Oxide) Max. 0.50%
K2O(Potassium Oxide) Max. 0.70%
Na2O(Sodium Oxide) Max. 0.40%
Moisture Content(H2O) Max. 1.5%
Loss on Ignition(L.O.I) @ 975 Max. 3.0%
Percent Retained On 45¼m (325 sieve) Max. 1.5%
Bulk Density 250-300kg/m3

Silica Fume CAS # : 69012-64-2

Silica Fume Packing : 500kg/jumbo bags, and 20kg and 25kg small plastic woven bags.