

Our silica fume acts as a protective shield for concrete against harsh elements like deicing salts, seawater, heavy traffic, and impacts. By virtually eliminating rebar corrosion and concrete deterioration, it significantly reduces maintenance expenses, ensuring lasting durability and reliability.
When infused with our silica fume, high-strength concrete offers architects and engineers extraordinary design flexibility. Often utilized in high-rise developments for more efficient space utilization through smaller columns, this enhanced concrete is also ideal for precast and prestressed girders, enabling longer spans in structural bridge designs and expanding architectural possibilities.
NO | ITEM | REQUIREMENT | TEST VALUE |
1 | SiO2 | ≥92% | 92.86% |
2 | MOISTURE | ≤2% | 0.65% |
3 | LOSS ON IGNITION | ≤3% | 1.12% |
5 | BULK DENSITY | 350-450KG/M3 | 389KG/M3 |
We offer versatile packaging options including 20 kg paper bags, 25 kg plastic woven bags, or robust jumbo bags, ensuring safe and convenient delivery tailored to your needs.

Since 2001, SY (SanYuan) has been at the forefront of microsilica research and promotion, leading to the establishment of our state-of-the-art production facilities. With the creation of our new Lanzhou factory and the comprehensive upgrade of the Yinchuan factory, Gansu Sanyuan Silicon Materials Co., Ltd. now boasts enhanced safety, cutting-edge technology, heightened efficiency, and eco-friendly operations through the addition of complete environmental protection equipment and improved equipment functions.
The strategic addition of the Tianjin Distribution Center to our existing warehouses in Gansu, Ningxia, and Inner Mongolia facilitates secondary quality inspections and ensures rapid transportation, exemplifying our commitment to quality and efficient service delivery.
With nearly two decades of experience in microsilica production and sales, we pride ourselves on our expertise and leadership in the industry. Our robust annual production capacity of over 100,000 tons underscores our role as a key player in the market.
As a pioneering force in China's microsilica industry for decades, Sanyuan has played a pivotal role in shaping the national standards for microsilica, reinforcing our commitment to excellence and innovation.

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.