Henan Superior Abrasives Company

Zhengzhou, China

• MOQ 1 Metric Ton

Silica fume is used in refractory. Silica fume in refractory enhancing the fluid of pouring refractory, reducing the volume of used water, beeasy to shape, and raising the production efficiency. Because of its untramicrostructure for gap filling, the compact and intensity of refractory gain rising by a wade margin. Silica fume in refractory is a highly effective pozzolanic material, so it's easy to come into being Mullite Phase, under the premise that Al2O3 exists, enhance elevated temperature strength and thermal shock of refractory. Function of adding Silica Fume(microsilica) : • Silica fume in refractory is used in unshaped refractories • Silica Fume in refractory is used ingunned refractory materials to improves adhesion in castables and minimizes rebound loss • Silica fume in refractory is used in shape refractories

• MOQ 1 Metric Ton

Silica Fume 94 is a dry powder microsilica admixture for portland cement concrete and mortars. Silica Fume 94 is a pozzolanic material that consists primarily of fine silicon dioxide particles in a non-crystalline form. Silica Fume 940 meets the requirements of ASTM C-1240 and contains a minimum of 95% silicon dioxide (SiO2). Product Details and Specifications Parameters Standard Value Silicon Dioxide(SiO2) 97% 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 350-700kgm³

• MOQ 1 Metric Ton

Silica fume is used in concrete. When it is used in concrete, it acts as a filler and as a cementitious material. The small silica fume particles fill spaces between cement particles and between the cement past matrix and aggregate particles. The silica fume also combines with calcium hydroxide to form additional calcium hydrate through the pozzolanic reaction. Both of these actions result in a denser, stronger and less permeable material. Application : 10% to 15% High strength structural columns 10% Flatwork 8% to 10% High durability Low permeability such as bridge decks or parking structures 8% to 15% by weight of cement but as an addition not replacement Silica Fume has been used as an addition to concrete up to 15 percent by weight of cement, although the normal proportion is 7 to 10 percent. With an addition of 15 percent, the potential exists for very strong, brittle concrete. It increases the water demand in a concrete mix; however, dosage rates of less than 5 percent will not typically require a water reducer. High replacement rates will require the use of a high range water reducer. Function of adding Silica Fume(microsilica) : � Increase durability � Reduces concrete permeability � Improves resistance to corrosion � Shotcrete - lower rebound

Silica Fume 850 is a densified dry powder microsilica admixture for portland cement concrete and mortars. Silica Fume 850 is a pozzolanic material that consists primarily of fine silicon dioxide particles in a non-crystalline form. Silica Fume 850 meets the requirements of ASTM C-1240 and contains a minimum of 85% silicon dioxide (SiO2) Technical Data : Parameters Tested Results Silicon Dioxide(SiO2) 85.89% Loss on Ignition (LOI) 2.0% Moisture Content % 1.8% Percent Retained On 45-μm (325 sieve) 2.7% Bulk Density 650kgm3 Silica Fume CAS # : 69012-64-2 Silica Fume Packing : 900KGJumbo Bag, 500KGJumbo Bag or 20kg or 25kg small plastic woven bags. Usage : 1.Silica fume in concrete 3.Silica fume in Ceramics 4.Silica fume in Rubber

• MOQ 1 Metric Ton

1. Product Details and Specifications Parameters Standard Value Silicon Dioxide(SiO2) 97% 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 350-700kgm³ 2. Packaging & Delivery Packaging Details: 25kgsbag, 50kgsbag, 1000kgsjumbo bags Delivery Detail: Within 15 days after payment