

Silica fume acts as a formidable shield for concrete, safeguarding it against the damaging effects of deicing salts, seawater, traffic, and heavy impact. By virtually eliminating rebar corrosion activity and concrete deterioration, it markedly reduces maintenance expenses, ensuring sustained performance and longevity.
With silica fume, high-strength concrete grants architects and engineers unparalleled design flexibility. Traditionally favored in high-rise constructions for enabling slender columns that enhance usable space, this advanced concrete is also employed in precast and prestressed girders, facilitating longer spans in bridge designs and broadening architectural possibilities.
NO | ITEM | REQUIREMENT | TEST VALUE |
1 | SiO2 | ≥95% | 95.86% |
2 | MOISTURE | ≤2% | 0.87% |
3 | LOSS ON IGNITION | ≤3% | 1.12% |
5 | BULK DENSITY | 350-450KG/M3 | 366KG/M3 |
Available in versatile packaging solutions: 20 kg paper bags, 25 kg plastic woven bags, or other jumbo bags to suit your needs.

Since venturing into microsilica research and promotion in 2001, SY (SanYuan) company has established a formidable production facility. Beyond our initial Yinchuan factory, we have launched a new state-of-the-art "Lanzhou factory."
With significant upgrades to the Yinchuan facility, we have enhanced safety, technological prowess, efficiency, and environmental sustainability by incorporating comprehensive environmental protection equipment and enhancing the original equipment's screening and classification functions. Our strategic addition of the Tianjin Distribution Center complements our existing storages in Gansu, Ningxia, and Inner Mongolia, ensuring rigorous secondary quality inspections and expedited delivery.
With nearly two decades of experience in the production and sale of microsilica, we pride ourselves on our professionalism and expertise. Boasting an impressive annual production capacity exceeding 100,000 tons, Sanyuan stands as a distinguished leader in China's microsilica industry.
For decades, Sanyuan has been at the forefront of the microsilica products industry in China, notably contributing to the formulation of the national standard for microsilica, underscoring our commitment to excellence and industry leadership.

1.What kind of payment term do you support ?
T/T in advance
2.What's your terms of delivery?
FOB, CIF
3.How long will your production take ?
Normally 10 days after contract
4.could you support to sample test?
Of course, we would like to offer you free sample for testing based on you pay the freight.