Cement production accounts for roughly 8 % of global CO₂ emissions. By integrating silica fume—an industrial by-product – into concrete, Tech Silica helps you build greener, stronger and longer-lasting structures.
The Environmental Challenge of Cement
- Cement clinker manufacture releases ~0.9 tons CO₂ per tonne of cement.
- Aggregate mining and transport add to the embodied carbon.
- Frequent repairs of low-durability concrete amplify lifetime emissions.
Silica Fume as a Circular Economy Success
- Transforms silicon metal refinery dust into premium SCM.
- Diverts millions of tons of industrial by-product from landfills.
- Lowers cement content by 5–15 % while maintaining or boosting performance.
Reducing Cement Content Without Sacrifice
|
Benefit |
Without Silica Fume |
With 10 % Silica Fume |
|
Cement Reduction |
0 % |
10 % |
|
CO₂ Emissions Saved |
0 % |
~9 % |
|
28-Day Compressive Strength |
40 MPa |
48 MPa |
|
Permeability |
High |
Very Low |
Real-World Green Building Examples
- LEED Platinum Office Tower, Canada: 12 % cement reduction, earned 3 carbon points.
- Eco-Bridge Project, Netherlands: 15 % silica fume blend cut maintenance cycles by half.
- Solar Plant Foundations, Spain: 10 % silica fume ratio improved sulfate resistance in aggressive soils.
Partner with Tech Silica for Sustainable Infrastructure
When you source silica fume from Tech Silica, you get:
- Guaranteed traceability and sustainable sourcing
- Technical support for green-mix optimization
- Custom densification levels to ease handling