Silica fume is a very fine powder – the particles are approximately 1/100 the diameter of portland cement grains. When used to produce high-performance concrete, silica fume is typically 4-15% of cement weight. The exact addition rate depends upon the specific performance characteristic to be improved. Compared to the other ingredients in concrete, the amount of silica fume used is small.
Silica fume has historically been available in three basic product forms: undensified and densified.
Slurried silica fume is no longer available in the U.S.market. undensified silica fume is available, but it is not frequently used in ready-mixed or precast concrete. Undensified silica fume is primarily used in pre-bagged products such as grouts or repair mortars.
Densified silica fume works very well in concrete. However, one caution when working with this product form is to ensure that the mixing is adequate to break up the particle agglomerations. Mixing in some types of mixers such as those that are used in dry mix shotcrete, roof tiles, or other applications where coarse aggregate is not present may not be adequate to break up to agglomerations.
Microsilica SF85 meets the requirements of ASTM C-1240 and contains a minimum of 85% silicon dioxide (SiO2).
Product Details and Specifications of 85% silica fume:
| Parameters | Standard Value |
| Silicon Dioxide(SiO2) | 85 % min |
| Loss on Ignition(L.O.I) | 3 % max |
| Moisture Content(H2O ) | 1.0 % max |
| Percent Retained On 45μm (325 sieve) | 2.0 % max |
| Bulk Density | 350-700kg/m3 |
Packaging & Delivery
10kg soluble paper bags x 84 on the pallets.
20kg soluble paper bags x 42 on the pallets.
950kg plastic woven bags x 2 on the pallets(with or without bottom output )
1000kg plastic woven bags x 2 on the pallets(with or without bottom output )
500kg plastic woven bags x 2 on the pallets (with or without bottom output )
We can also produce according to your requirement.
Microsilica 85 grade price:
The price of Microsilica is mainly determined by the output and demand. For example, the production of Microsilica fume in refractory is low, but the price is high.
The production of silica fume for concrete is large but the price is very cheap.
Logistics factors
The price of micro silica fume powder has a great relationship with the distance of transportation. Transportation costs account for a large share of the total cost of silica fume.
Undensified Microsilica price is higher, because the cost of transportation is high. The main advantage of densified microsilica powder is to save the cost of transportation.
Packaging factors of microsilica:
The packaging of microsilica also has a certain impact on the price.
At present, the more expensive packages for customers are 10kg water soluble paper bags. The price is the most expensive.
Second, the 25kg paper bag and the 25kg woven bag, prices are medium price.
The cost saving package is 1000kg ton bag. The price is the cheapest.
Transportation cost of bulk carrier is the lowest when the amount is large.
If you want to know the detailed microsilica 85 grade or other grade silica fume, please contact us by E-mail sales@superior-abrasives.com or directly leave your message on the following forms, our salemen will reply you soon. thank you.
