

Empower your concrete to withstand the harshest elements with our versatile silica fume. Whether it's deicing salts, relentless seawater, bustling traffic, or heavy impacts, our product stands as a formidable shield. The corrosion of rebar and the deterioration of concrete are drastically minimized, leading to significant reductions in maintenance costs and enhancing the lifespan of your structures.
Transform architectural and engineering visions into reality with our high-strength concrete, enriched with our exclusive silica fume. Offering unprecedented design flexibility, it’s the choice for high-rise constructions with slimmer columns, maximizing usable space. Ideal for precast and prestressed girders, this innovation extends the possibilities in structural bridge designs, enabling longer spans and more robust constructs.
NO | ITEM | REQUIREMENT | TEST VALUE |
1 | SiO2 | ≥94% | 94.86% |
2 | MOISTURE | ≤2% | 0.25% |
3 | LOSS ON IGNITION | ≤3% | 1.11% |
5 | BULK DENSITY | 350-450KG/M3 | 382KG/M3 |
Our product is available in various packaging options to suit your needs: Secure and sturdy 20 kg paper bags, robust 25 kg plastic woven bags, or larger, convenient jumbo bags for bulk requirements.

Since its inception in 2001, SY (SanYuan) has been at the forefront of microsilica research and promotion, leading to the establishment of a state-of-the-art production plant. Beyond our original Yinchuan factory, we've inaugurated the cutting-edge Lanzhou factory.
At the Yinchuan facility, upgrades have enhanced safety, advanced technology, efficiency, and ecological sustainability, including comprehensive environmental protection equipment and refined screening and classification features. Our strategic expansion includes the Tianjin Distribution Center, boosting quality checks and ensuring rapid delivery, supplementing our existing network in Gansu, Ningxia, and Inner Mongolia.
With nearly two decades of expertise in microsilica production and sales, we are seasoned professionals in this field. Our annual production surpasses 100,000 tons, reinforcing Sanyuan's status as an industry leader.
Our commitment to excellence extends to our role in shaping the Chinese national standards for microsilica. As a leader in the industry for decades, we continue to innovate and drive the market forward.

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.