GROUND GLASS POZZOLAN
Opta Glass manufactures R-E-D’s Re-Act 4. Made from 100 percent recycled glass, Re-Act 4 is an amorphous glass powder with excellent pozzolanic properties.
An environmentally safe and sustainable secondary cementitious material, Re-Act 4 is suitable for countless applications in the refractory, mineral processing, and construction materials industries.
Make a sustainable choice for your next project.
RE-Act 4 is a high-performance ground-glass pozzolan used in construction products ranging from ultra-high-performance concrete to architectural pre-cast and from ready-mix concrete to premium durability grades. Added to cement, it makes the finished product more durable, long-lasting, and cost-effective.
Re-Act 4 contributes to the function and application of sustainability, improving the longevity and viability of your products.
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Using RE-Act 4 in your concrete mixture will:
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Increase 28-day strengths.
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Provide a twenty-times reduction in CO2 emitted compared to ordinary Portland cement.
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Improve chloride and sulfate resistance.
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Moderate ASR resistance.
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Improve freeze and thaw resistance.
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Result in exceptional UHPC mixtures.
As a 100 percent recycled product, Opta and R-E-D’s Re-Act 4 reduces glass in landfills and lowers the overall carbon footprint.
TYPICAL CHARACTERISTICS*
| Analysis | Typical | Min | Max |
|---|---|---|---|
| SiO2 (%) | 70.0 | 68.0 | 80 |
| Fe2O3 (%) | 0.5 | 0.1 | 1.0 |
| Al2O3 (%) | 1.0 | 0.3 | 5.0 |
| CaO (%) | 10.0 | 2.0 | 15.0 |
| NaEq (%) | 13.0 | 7 | 15.0 |
| >45μ(%) | 0.0 | 0.0 | 0.0 |
| LOI | 0.2 | 0 | 0.5 |
| Pozzolanic Activity (%) 28d | 107 | 100 | 125 |
| Water Demand (%) | 99 | 97 | 102 |
| Brightness (L*) | 94 | 90 | 97 |
*These values describe a mean range and do not represent a specification.
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