Silica Fume

Silica Fume low density(92%)

General Description   Micro silica ,also called silica fume or micro silica, is a byproduct of production silicon metal or ferrosilicon alloys. Silicon metal and alloys are produced in electric furnaces.The raw materials are quartz,coal and woodchips.The smoke that results from furnace operation is collected and sold as silica fume, silica fume consists primarily of amorphous(non-crystalline) silicon dioxide(SiO2),its average granule diameter is 0.15~0.20um,specific surface area is 15000~20000m2/kg,and it has extremely strong surface active.  

Typical properties   

Type:Silica Powder 

 Application: Refractory 

 Grade :Silica Oxide Micro Fine -400  

IMG_2882.jpg   IMG_2877.jpg

  

Analytical data 

 

Chemical &Physical AnalysisASTM C1240-11EN 13263:2005
/Spec. FrequencySpec. Frequency
SiO2 (%)>92.0 300MT>92.0 Weekly
So3 (%)/<3.0 Weekly
Cl (%)/<0.3 Weekly
Free CaO (%)/<1.0 Weekly
Free Si (%)/<0.4 Monthly
Alkalies(as equivalent Na2O %)Report 300MT/
Moisture(%)<1.0 300MT/
Loss on Ignition,LOI(%)<4.0 300MT<4.0 Weekly
Specific surface(BET -M2 /GRAM)>18 2200MT/3 months15-35 Monthly
Bulk density(kg/m3)>300320
Pozz.Activity Index(%) - 7 days accelerated curing>110 2200MT/3 months/
Pozz.Activity Index(%) - 28 days accelerated curing/>100 Monthly
Retained on 45 micron sieve (%)<10 3 00MT 
Variation from avg.retained on 45 micron (%)<2 avg.of last 10 tests 
Density(kg/m3)Report 300MT 

 Applications

Micro-Silica Powder Is Widely Used In Various Applications, Including High-Strength Concrete, Amorphous Refractory Materials, Dry-Mix (Ready-Mix) Mortars, High-Strength Non-Shrink Grouting Materials, Wear-Resistant Industrial Floors, Repair Mortars, Polymer Mortars, Thermal Insulation Mortars, Impermeable Concrete, Self-Leveling Concrete, Concrete Compaction Agents, Concrete Preservatives, And Cement-Based Polymer Waterproofing Agents. Additionally, It Is Utilized For Reinforcing Rubber, Plastic, Unsaturated Polyester, Paints, Coatings, And Other Polymer Materials, As Well As For Modifying Ceramic Products.

Packaging  25kg/bag

Storage  to be stored in plastic or stainless steel container,please store dry at usual ambient temperature and protect from excessive heat(below 40℃)

Shelflife  2 year 

Transport regulation not handle with care to avoide breakage when moving,keep from excessive heat.this product is non-toxic,non-irritating,non-combustible.

Previous:no more Next:Silica Fume high density (92%)