92% Undensified Microsilica (Silica Fume) 92U
92% Undensified Silica Fume is an outstanding, unrefined microsilica boasting a remarkable silica content of more than 92.0%. Characterized by a bulk density that spans 250-350 kg/m3 and a specific surface area between 15-30 m2/g, this innovative supplementary cementitious material presents a range of benefits that make it an essential choice for various construction applications.
Superior to its 85% counterpart, the 92% Undensified Silica Fume offers unparalleled advantages in the construction industry, including heightened strength, enhanced durability, optimal workability, and lowered thermal conductivity. Its environmentally friendly properties make it an appealing choice for green construction practices, while its cost-effectiveness ensures that it remains an accessible option for diverse projects.
This premium-quality microsilica is extensively employed in a multitude of construction applications such as insulation materials, large-scale concrete projects, mortar, pipe piles, and numerous other specialized uses. Its versatile nature enables its integration in both residential and commercial structures, significantly improving their overall performance and longevity.
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Parameters
Property | Value |
---|---|
SiO2 (Silicon Dioxide, Amorphous) | 92% min |
SO3 | 1.9% max, typical 0.26% |
Cl | 0.3% max |
Free CaO | 1.0% max |
Al2O3 | Typical 0.75% |
K2O | Typical 1.17% |
MgO | Typical 0.42% |
Na2O | 0.02% max |
Fe2O3 | Typical 0.19% |
pH | 7-8 |
Moisture | 3% max, typical 0.65% |
LOI (Loss on Ignition) | 6% max, typical 3.13% |
Specific surface (BET) | 18 m2/gram min |
Bulk Density | 250-350 kg/m3 |
PAI (Pozzolanic Activity Index) – 7 days accelerated curing | 105% min |
Retained on 45 micron sieve | 10% max, typical 1.01% |
Fluidity | > 15 cm |
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Founded in 2001, HSA is a leading provider of Silica Fume and Abrasives in China, and also the premium source of high-performance Products for concrete and abrasives industries.