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Micro silica powder (original ash)
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Quartz stone is a general term for vein quartz, quartzite, and quartz sandstone. Mainly used for acidic refractory bricks in the metallurgical industry. Pure silica can be used as quartz glass or to extract monocrystalline silicon. It is used in the chemical industry to prepare silicon compounds and silicates, and can also be used as a filler for sulfuric acid towers. Used in the building materials industry for glass, ceramics, silicate cement, etc. Can be used as a raw material for the smelting of industrial silicon and other ferroalloys.
Silica fume: basic chemistry and multiple advantages
Silica fume is a co-product of silicon or ferrosilicon production, consisting of ultrafine (sub-micron), amorphous, non-porous, perfectly spherical silicon dioxide (SiO2) particles, with purity levels of 85 to 99 %. The main effect of these ultra-fine particles is to greatly improve particle packing and produce a highly pozzolanic reaction in concrete and other cementitious bond systems where the silicon dioxide reacts with calcium hydroxide, heightening performance levels and the strength and durability of these materials. Additionally, silica fume, because of its amorphous (non-crystalline) structure and its specific area, provides other useful features to various applications, including improved sintering capabilities and enhanced high temperature performance of refractory castables, resulting in reactions between microsilica and other components of the refractory mix.
To summarize, silica fume has two key features which alone or in combination are the basis for its high performance:
- The nano-sized spherical non-porous particles create an efficient “filler effect”
- Primary particles have an average diameter of about 0.15 μm (150 nanometers)
- Microsilica is a highly reactive form of silica producing a “chemical effect”
- Thanks to its amorphous nature and high specific surface area.
A review of some leading products and applications in different industries
Applications are very numerous, including uses in construction, well drilling & cementing, refractories, polymers, etc. This versatility also explains why silica fume is referred to by different names in different industries, such as condensed silica fume or microsilica, the latter used, for example, in High-Performance Materials (HPM) in the construction and refractory industries.
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Hypertrust
The Ningxia Silica Commercial & Trading Co., Ltd was founded by couples of specialized factories by combining a professional trading team. Our aim: Providing highest price performance products and superior service for clients.
Although it was newly established, its parent factories have been manufactured large quantity OEM products for world famous brands since 2010. Experienced manufacture experts and foreign trade team to ensure our goal to be well accomplished.
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Hypertrust is one of the world's leading suppliers of advanced silicon-based materials. Integrate resources and create value-added services. Produce advanced silicon-based materials for a better and more sustainable future.
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The Ningxia Silica Commercial & Trading Co., Ltd was founded by couples of specialized factories by combining a professional trading team. Our aim: Providing highest price performance products and superior service for clients.
Although it was newly established, its parent factories have been manufactured large quantity OEM products for world famous brands since 2010. Experienced manufacture experts and foreign trade team to ensure our goal to be well accomplished.
Silica Materials Co., Ltd
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Micro silica powder (for concrete)
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