SIRIO SILICAFUME, usually known as silica-fume or simply as microsilicate, it’s a product obtained by a reduction process of quartzite during the production of metal silicon. Through a particular production cycle it is obtained a powder with special characteristics such as high fineness, spherical, amorphous structure with a size of 0.1 microns.
Benefits: it provides a significant increase in the mechanical strength, consistent reduction of the permeability to chlorides and the effects of carbonation and it guarantees very good anticorrosion effects.
Applications: where the production of concrete with a very high degree of waterproofing and in durability is required. It is recommended when you have to pour concrete in sites with a water-bearing stratum and in underwater works. Used in “vasca bianca” systems.
Consumption: 5 – 15 % of cement weight.
Packaging: big bags 1.200 Kg – bags 10 – 25 Kg.