85% Densified Silica Fume
85% Densified Silica Fume
85% Densified Silica Fume is a micro silica fume with 85% SIO₂ content, and the Bulk density is 240-320kg/m³.
Silica fume is a byproduct of producing silicon metal or ferrosilicon alloys. It consists primarily of amorphous silicon dioxide (SIO₂), its average granule diameter is 0.15~0.20 μm, specific surface area is 15000~20000 m²/kg. Mainly used for high transparency, high resistance to tear silicone rubber, silicone grease, sealed packaging materials such as capacitors.
To ensure the quality of our Silica Fume Powder,we meets the requirement of ISO9001/14001/45001, CNAS and IAF.
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85% Densified Silica Fume Features
|Increased Strength||Our Microsilica boosts the compressive strength of concrete, making it ideal for high-performance and structurally demanding applications.|
|Densified Form||The densified nature of this product ensures ease of handling and dispersion during the mixing process, allowing for consistent and reliable results.|
|Improved Durability||It enhances the resistance of concrete to chemical attacks, abrasion, and corrosion, extending the lifespan of your structures.|
|Reduced Permeability||Microsilica reduces the permeability of concrete, making it less susceptible to water penetration and frost damage.|
|Enhanced Workability||Despite its high reactivity, our 85% Densified Microsilica can improve the workability of concrete, making it easier to handle during construction.|
|Environmental Benefits||It contributes to more sustainable construction practices by reducing the need for additional cement content, which helps lower CO2 emissions.|
85% Densified Silica Fume Parameters
Ewende Silica Powder is produced in conformance with the ASTM specifications. The quality is controlled and monitored throughout the entire production process to ensure that it meets or exceeds specification requirements.
|National Standards for Silica Fume for Concrete|
|National Standards and Organizations||Europe||Norway||France||Australia||United States||Canada||Japan||China|
|Standard Code||CEN EN||NS||NF||AS||ASTM C||CSA||JIS||GB/T||GB/T|
|SiO2 % ≥||85||85||85||85||85||85||85||85||85|
|SO3 % ＜||2||2.5||3||1||3|
|CI－ % ＜||0.3||Report||0.2||Report||0.1||0.1||0.1|
|CaO % ＜||1||2||1|
|MgO % ＜||5|
|Si % ＜||0.4||0.4|
|Na2O+K2O % ＜||4||1.5|
|C % ＜||4|
|Water Content % ＜||2||3||3||3||3|
|Burn Vector % ＜||4||5||6||6||6||5||6||4|
|Specific Surface Area ㎡/g||15-35||≥12||20-35||≥15||≥15||≥15|
|45μm Sieve Residue % ＜||10||10||5|
|Loose capacity kg/m³||Report||Report|
|Specific Gravity g/㎝³||2.1-2.3||Report|
|Water Demand Ratio % ≤||125||125|
|Volcanic Ash Activity Index||%（3d) ≥|
|Water to Glue Ratio||0.5||0.5||0.484||0.5||0.5||0.5|
85% Densified Silica Fume Application
At Ewende, we take pride in offering top-notch materials that empower your projects to excel. Trust in our 85% Densified Microsilica to help you build a future that’s stronger and more resilient. Contact us today to learn more about how this remarkable product can make a difference in your construction endeavors.
The high resistivity and low permeability of micro-silica sprayed concrete in the project can reduce the corrosion of steel bars and wire mesh by chlorides, reduce the amount of rebound, reduce permeability, and improve the durability of freezing and thawing. Improved bending and compressive strength.
Micro silica fume can be used as a binder, active agent and mineralizer for refractory materials and kiln furniture materials, which is conducive to improving the solid-phase reaction and sintering driving force of refractory materials, enhancing the reaction speed and sintering density of materials, and is conducive to crystal transformation. performance of the material.
Using silica fume as the main raw material to prepare composite silicate thermal insulation materials has gradually become a hot spot in the application of silica fume. Composite silicate thermal insulation coating is one of the most widely used thermal insulation coatings at present. It belongs to barrier type thermal insulation coating.
Silica fume can improve the performance of concrete mixture, reduce air bubbles on the surface of concrete, improve the strength of concrete surface, make the surface of concrete smooth, inhibit the carbonation of concrete, resist the erosion of harmful external media, and help improve the durability of concrete. help improve the durability of concrete.
By adding micro silica fume, optimizing concrete mix ratio, temperature control and other technical means, the PHC pipe pile can be realized without high-pressure steam curing and energy-saving technology, which not only simplifies the process, but also greatly reduces coal and electricity consumption, and also reduces carbon dioxide. emission.
Concrete mixed with silica fume is mainly used in water cushions, ponds, flood discharge tunnels and other parts. As an auxiliary cementitious material, microsilica fume can significantly improve the strength of cement stone in the concrete matrix, and at the same time greatly improve the relationship between cement stone and aggregate. between the bond strength.
Adding micro silica fume to oilfield cement can improve the thermal stability of oilfield cement, change the C/S ratio of cement, and change the composition and structure of cement hydration products. With the addition of different amounts and ambient temperatures, it can be obtained A series of hydration products with good stability, high strength and low permeability.
There is no fine sand in the permeable concrete, and the porosity is relatively large. A small change in the water-cement ratio of the blank sample can cause a large change in the fluidity of the mixture. The water-cement ratio is difficult to control, and the water-cement ratio can be significantly improved by adding silica fume. workability of fresh concrete mixtures.
Micro silica fume is used in high-grade high-performance low-cement refractory pouring materials and prefabricated parts. The service life is three times that of ordinary castables, the refractoriness is increased by about 100°C, and the high-temperature strength and thermal shock resistance are significantly improved. It has been widely used in ceramic industries.
Micro silica fume is used for agricultural fertilizer and improved soil varieties. Micro-silica fume is mixed with potassium hydroxide or potassium carbonate and heated to make potassium silicate slow agricultural fertilizer. It is not easy to volatilize and lose, can protect the soil, promote the development of crop roots, and inhibit pests and diseases.
85% Densified Silica Fume Packaging
Ewende is a leading provider of Silica Fume in China, and also the premium source of high-performance Silica Fume products for concrete and refractory industries. We can also produce according to your requirements.
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FAQ about 85% Densified Silica Fume
♦ Are you a factory or a middleman?
Ewende New Materials Co., Ltd. is a professional manufacturer and supplier of Micro Silica Powder, with a variety of submerged arc furnace types.
♦ How long will it take for delivery?
Usually, it will be around 15 days after the order confirmation or deposit.
♦ What are the payment terms?
TT, L/C, D/P, and Paypal are also available.
♦ What’s your MOQ?
Usually 10 tons to start.
♦ Can you print our brand or logo for the packing?
We will offer our Neutral Packing, according to the actual quantitative can negotiate the outer packaging logo spraying.
♦ Can you offer samples for testing?
Sure, samples would be available for testing purposes. Usually, our samples are for free in testing quantity, if more, our customer service department would consider them accordingly.
♦ How to get a quote?
Hello, please provide the detailed product model, specification and quantity. If there is a bill of materials, you can send the bill of materials to firstname.lastname@example.org.