Silica Fume SF 960 is a dry powder available in two forms,densified silica fume and undensified silica fume .
Silica Fume SF 960 is a pozzolanic material that consists primarily of fine silicon dioxide particles in a non-crystalline form.
Silica Fume SF 960 contains a minimum of 96% silicon dioxide (SiO2).
1) High-performance Concrete (HPC) containing silica fume
For highway bridges, parking decks, marine structures and bridge deck overlays which are subjected to constant deterioration caused by rebar corrosion current, abrasion and chemical attack. Silica fume will protect concrete against deicing salts, seawater, road traffic and freeze/thaw cycles. Rebar corrosion activity and concrete deterioration are virtually eliminated, which minimizes maintenance expense.
2) High-strength concrete enhanced with silica fume
This provides architects and engineers with greater design flexibility. Traditionally used in high-rise buildings for the benefit of smaller columns (increasing the usable space) high-strength concrete containing silica fume is often used in precast and prestressed girders allowing longer spans in structural bridge designs.
3) Silica-fume Shotcrete
It delivers greater economy, greater time savings and more efficient use of sprayed concrete. Silica fume produces superior shotcrete for use in rock stabilization; mine tunnel linings; and rehabilitation of deteriorating bridge and marine columns and piles. Greater bonding strength assures outstanding performance of both wet and dry process shotcreting with less rebound loss and thicker applications with each pass of the shotcrete nozzle.
4) Repair Products
Silica fume is used in a variety of cementitious repair products. Mortars or grouts modified with silica fume can be tailored to perform in many different applications—overhead and vertical mortars benefit from silica fume’s ability to increase surface adhesion. Silica fume significantly improves cohesiveness, making it ideal for use in underwater grouts; it decreases permeability in grouts used for post-tensioning applications, and increases resistance to aggressive chemicals.
Microsilica wt-96u parameter:
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