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