China is the world’s largest producer of silica fume, accounting for about 70% of the global production. The main production centers are located in the provinces of Henan, Shandong, and Shanxi.0
Silica fume properties
Silica fume is a byproduct of the smelting process in the silicon and ferrosilicon industry. It is a fine, powdery material with a high content of silicon dioxide (SiO2). Silica fume has a number of properties that make it a valuable industrial material, including:
- High pozzolanic activity: Silica fume reacts with calcium hydroxide in cement to form calcium silicate hydrate, which enhances the strength and durability of concrete.
- Low permeability: Silica fume fills the pores in concrete, making it more impermeable to water and other fluids.
- Good thermal insulation properties: Silica fume can be used to make lightweight, heat-insulating materials.
- Fire resistance: Silica fume is a fire-resistant material that can help to protect structures from fire damage.
Silica fume applications
The main uses of silica fume in China are in the production of concrete, refractory materials, and thermal insulation materials. It is also used in the manufacture of composites, paints, and plastics.
- Concrete: Silica fume is used as a pozzolan in concrete. Pozzolans are materials that react with calcium hydroxide in concrete to form a cementitious material. This reaction improves the strength, durability, and fire resistance of concrete.
- Refractory materials: Silica fume is used in the production of refractory materials. Refractory materials are used to line furnaces and other high-temperature applications. Silica fume helps to improve the thermal insulation and resistance to erosion of refractory materials.
- Composite materials: Silica fume is used in the production of composite materials. Composite materials are made from two or more materials that have different properties. Silica fume is used to improve the strength, toughness, and wear resistance of composite materials.
Silica fume price in China
The quality of silica fume produced in China varies. The best quality silica fume is produced by the wet process, which produces a product with a high specific surface area and a low content of impurities. The wet process is more expensive than the dry process, but it produces a higher quality product.
The cost of silica fume in China varies depending on the quality and the grade. The average price of silica fume in China is around US$200 per ton. However, the price can be higher for high-quality silica fume or for silica fume that meets specific standards.
The leading silica fume suppliers in China
Henan Superior Abrasives Import & Export Co., Ltd. (HSA), established in 2001, is a leading supplier of silica fume and related products in China.
As a crucial silica fume supplier, Henan Superior Abrasives offers a range of products with varying degrees of purity and particle sizes to meet the diverse needs of its clientele. Our silica fume products are renowned for enhancing the strength, durability, and workability of concrete, making it a sought-after material in numerous construction projects.
Technical Support and Consultancy
Beyond being a supplier, the company extends its expertise to provide technical support and consultancy services. Clients can rely on our team of experts for guidance on the optimum usage of silica fume in their projects, ensuring both quality and efficiency.
Sustainability and Environmental Responsibility
Committed to promoting sustainable practices, the company has implemented several initiatives to minimize environmental impact. This includes adopting energy-efficient production methods and working towards reducing waste and emissions.
Henan Superior Abrasives has successfully established a strong foothold not only in the Chinese market but has also expanded its operations globally. With a network of distributors and partners worldwide, the company ensures a steady and reliable supply of silica fume to its international clientele.
To learn more about our products and services, or to get in touch with our team of experts, please visit our official website or reach out to us at email@example.com.