Silica fume is added to concrete and initially, it remains
inert. It is only when the Portland cement is and water is added to the mix, the
reaction begins. Due to hydrating, the primary chemical reaction occurs between
the two chemical compounds, i.e.,
- Calcium Silicate Hydrate (CSH): It is the produces strength for crystallization, and
- Calcium Hydroxide (CH): It is a by-product of free lime that is responsible for nothing more than lining available pores within the concrete as a filler or leaching out of inferior concrete.
Precision Drawell Pvt. Ltd., a leading silica fumes manufacturer in India claims that CSH provides with improved compressive, flexural, and bond
strength. It is a much denser matrix, Silica fume (or Shotcrete) provides
excellent resilience, long service life, and potential to withstand
catastrophic events. Therefore, this premier global building material is
sustainable to use. This is important especially in cities like Delhi, where
the construction Industry contributes to a large part of pollution in the city.
Another creative concrete additive that mankind has searched
to make concrete high in strength and best in performance is the micro silica.
By improving the physical and mechanical properties of concrete, micro silica
is highly reliable and cost-effective concrete additive. Again, the dosage of
micro silica is important. The ideal dosage is 4 to 15 percent of the weight of
the cement. Still, to know the accurate dosage requirement, an advice from a
structural engineer must be sought.
Precision Drawell Pvt. Ltd., a premier brand and micro silica manufacturer in India claims that Strongcrete micro silica can bring in greater
economies of scale and faster execution of projects. Therefore, it suggests
using these silica-based concrete additives in:
- Infrastructure projects like bridges and fly-overs,
- Heavy equipment foundations
- Precast concrete products
- Seismic resistance structures
- Shotcreting the tunnels and mines
- Infrastructure based projects where impermeable concrete is required like water treatment plants, dams, sewage treatment plans.
- For making residential, commercial, and public utility buildings.
It is strongly recommended to use gloves, eyes, and nose
protection devices while handling and using micro silica and silica fumes.
