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.

92% Undensified Silica Fume 92U
  • Sio2: >85%
  • Color: Grey
  • PH: 6~8
  • Bulk Density: 250~350kg/m3, 550~700kg/m3, Above 700kg/m3

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Parameters

PropertyValue
Sio2 (Silicon Dioxide, Amorphous)92% min
SO31.9% max, typical 0.26%
Cl0.3% max
Free CaO1.0% max
Al2O3Typical 0.75%
K2OTypical 1.17%
MgOTypical 0.42%
Na2O0.02% max
Fe2O3Typical 0.19%
pH7-8
Moisture3% max, typical 0.65%
LOI (Loss on Ignition)6% max, typical 3.13%
Specific surface (BET)18 m2/gram min
Bulk Density250-350 kg/m3
PAI (Pozzolanic Activity Index) – 7 days accelerated curing105% min
Retained on 45 micron sieve10% max, typical 1.01%
Fluidity> 15 cm

FAQ

  • 10kg soluble paper bags x 84 on the pallets.
  • 20kg soluble paper bags x 42 on the pallets.
  • 950kg plastic woven bags x 2 on the pallets(with or without bottom spout)
  • 1000kg plastic woven bags x 2 on the pallets(with or without bottom spout )
  • 500kg plastic woven bags x 2 on the pallets (with or without bottom spout )
  • United States – ASTM C1240
  • Canada – CSA A23.5
  • European Union – EN 13263
  • China – GB/T 18736
  • Japan – JIS A 6207
  • Brazil – ABNT NBR 13956
  • Korea – KS F 2567
  • Vietnam – TCVN 9395
  • India – IS 15388

The cost of the silica fume is influenced by multiple factors, such as SiO2 content, logistics transportation cost, labor cost, ect. Generally, the price of silica fume ranges from $150 to $800 per metric ton. However, prices can sometimes exceed this range for high-quality, specialized products or for small orders.Due to different needs, which means that the price is changed, so we are unable to provide online quotes. We will send you the detailed quotation after you send us your requirements.

Silica fume and fly ash are both supplementary cementitious materials that can improve the performance of concrete. Silica fume is composed of extremely fine particles of amorphous silica, while fly ash is a byproduct of coal combustion and composed of small spherical particles of inorganic material. Silica fume particles are much smaller than fly ash particles, and it is generally considered to be a more reactive pozzolan than fly ash. Silica fume is known for improving the compressive strength of concrete at early ages, while fly ash is typically used to improve the long-term strength and durability of concrete. The choice of which material to use will depend on the specific application and performance requirements of the concrete being used.

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