Microsilica (silica fume)
Fine Chemicals / Microsilica (silica fume)
Microsilica(silica fume) is a densified or undensified admixture which consists primirily very fine amorphous SiO2 particles and meets ASTM C-1240 standarts, Microsilica is used in construction, construction chemicals and refractory industries.

MICROSILICA (silica fume)

PRODUCT DATA SHEET

Description:

Microsilica(silica fume) is a densified or undensified admixture which consists primirily very fine amorphous  SiO2 particles  and meets ASTM C-1240 standarts, Microsilica is used in construction, construction chemicals and refractory industries.

Technical Specifications:

Amorphous SiO2       

min% 90   (real %93,1)

H20 (humidity)           

max%0,3   (real %0,19)

LOI

(L.O.I  max%3,5 )  (real % 1,81)

Retained 45micron

max %2.5  (real %0,58)

Density

 0,25-0,35 kg/dm³(U)

BET                   

min.   15-28 m2/gr (gerçek 23,36 m2/gr)

 Application areas

         Ready mixed concrete and grout

         Refractory industry

         Offshore and marine structures

         Dams, tunnels, bridges and motorways

         Industrial floors

         Shotcrete applications

         Concrete pipes

         Precast ve prefabric industry

         High rise buildings

Advantages:

         Strenght: Compresive and flaxural strenght increased significantly

         Permeabilty: reduced by of 10 or more

         Chloride ion penetration: Reduced diffusion of chloride ions by a factor of  3 or more

         Reinforcement corrosion inhibitor: Electrical resistivity increased by more than 500%

         Chemical resistance: sinnificantly improved

         Sulphate resistance: equivalent to or beter than sulphate resistant cement

         Alkali silica reactivity: close to total suppression

         Abrasion resistance: greatly incrased

         Shotcrete: rebound reduced by 50% or more and compaction, streght and cohesion enhanced

         Durability: dramatic incrase in service life of concrete in all aggressive/chemical/marine environments.

Storage and shelf life:

Shelf life when stored in dry warehouse conditions above 2°C is unlimited.

Packaging:

750 kg big bags