Silica fume is an essential component in the production of concrete. Silica fume is a mineral admixture derived from the burning of coal or other fuel sources, and it is composed of microscopic particles of silicon dioxide. This material provides numerous benefits to concrete mixtures, as it increases strength and durability while decreasing permeability.
When added to concrete, silica fume creates a stronger bond between its components than regular concrete does. This allows for greater compressive strength and improved resistance against wear, tear, and weathering when compared to traditional mixes without silica fume. Furthermore, due to its composition as small particles, silica fume enhances cement hydration which further improves bonding capabilities in silica-fumed mixtures.
Silica Fume Cost Advantages
The use of silica fume can provide numerous cost advantages when used in concrete applications.
The main cost advantage associated with using silica fume as an additive to concrete is its ability to reduce water content while also improving workability. This leads to increased strength at lower dosages than conventional cement, reducing total costs for materials required for the project due to less cement being needed.