Category: Application

Without a doubt, the use of silica fume, pound for pound, provides the most positive Sustainability impact of all the Supplementary Cementitious Materials (SCM), only three of which (Silica Fume, Fly Ash and Slag Cement) are also known as Recovered Mineral Components (RMC) as identified by the Environmental Protection Agency (EPA). Silica fume is by comparison a small volume SCM…

The use of silica fume in refractory castables provides better particle packing. It allows for less water to be used while maintaining the same flow characteristics. It also promotes low temperature sintering and the formation of mullite in the matrix of the castable. This produces a castable that has a low permeability to avoid gas, slag and metal penetration. Castables…

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 dramatically improves cohesiveness making it ideal for use in underwater grouts, decreases permeability in grouts used for post-tensioning applications…

Whether used for primary (placement of grout as a hydraulic seal in the wellbore) or secondary applications (remedial operations including leak repairs, splits, closing of depleted zones), the addition of silica fume enables a well to achieve full production potential. Besides producing a blocking effect in the oil well grout that prevents gas migration, it provides these advantages: -Improved flow,…

Silica Fume Hydraulic is particular due to its high free CaO content, used in a fast setting concrete. Concretes with Silica Fume Hydraulic have higher strength than the average at early age (24 hr and 48 hr). Silica fume use for shotcrete delivers greater economy and time savings, and is a more efficient use of sprayed concrete. Silica fume produces superior…

High-strength concrete enhanced with silica fume provides architects and engineers with greater design flexibility. Traditionally used in high-rise buildings for the benefit of smaller columns (increasing usable space) high-strength concrete containing silica fume is often used in precast and prestressed girders allowing longer spans in structural bridge designs. Silica Fume in High-strength concrete advantages: Longer service life, anticorrosion, higher strength,…

  High Performance Concrete (HPC) containing silica fume has been identified as one of the more important advanced materials necessary in the effort to rebuild the nation's infrastructure.  In addition to increased strength and enhanced durability, HPC produced with silica fume delivers increased toughness, increased resistance to abrasion, corrosion and chemicals, sustainability and life-cycle cost efficiencies. Application: Highway bridges, parking decks,…