Henan Superior Abrasives - High Quality Silicon Carbide and Silica Fume Supplier

Introduction to Silica Fume Origin of Silica Fume Silica fume, also known as microsilica, is a byproduct of the industrial production of ferrosilicon and silicon metal alloys. It's a fine powder composed primarily of silica (SiO2) and forms when silicon and oxygen react at high temperatures. Originally considered a waste material, silica fume has since been recognized as a valuable resource for various industries. Properties of Silica Fume Silica fume possesses unique properties that make it particularly useful in industrial applications. It is a highly reactive pozzolan, which means it can form cementitious compounds when mixed with water and calcium hydroxide. It also has a very fine particle size, usually less than 1 micron, giving it a large surface area that helps improve bonding and packing in composite materials. How Silica Fume is Produced Collection and Processing During the production of silicon metal and ferrosilicon alloys, silica fume is generated as a byproduct in th...

  Densified micro-silica fume , also known as DMS or densified silica fume, is a highly reactive pozzolanic material used in concrete and other construction applications. It is produced by treating undensified silica fume to increase its mass density up to a maximum of 400-720 kg/m. What is densified micro-silica fume? Densified micro-silica fume is a waste product created during the production of silicon and ferrosilicon alloys. It is composed of extremely fine particles of silica that have been densified, or compacted, together to form agglomerates. The resulting material has a much higher density than undensified micro-silica fume, and is used in a variety of applications where its high density and strength are advantageous. Densified micro-silica fume is often used as a replacement for Portland cement in concrete, where it improves the compressive strength and durability of the finished product. It is also used in the manufacture of refractory bricks and castables, where its hi...

1. Thickness and rebound loss of bond damage The incorporation of silica fume in shotcrete can improve the adhesion to the bonded surface and the cohesion within the shotcrete; thus the thickness of shotcrete on the top and vertical surfaces can be greatly increased. In the study of wet mix shotcrete , if not mixed with silica fume, the top surface of the bond damage thickness of 90 mm; if mixed with compacted low-density silica fume, the maximum value of up to 280 mm. the top surface of the bond damage thickness is generally greater in dry mix shotcrete, if mixed with non-compacted silica fume, the maximum value of dry mix shotcrete up to 380 mm, while the top surface of dry mix shotcrete without silica fume The top surface rebound of dry shotcrete is 42.7% for shotcrete without silica fume, which can be reduced to 21.4% with the addition of silica fume. The amount of springback on the vertical surface: 45.5% for shotcrete without silica fume; can be reduced to 22.8% with the additio...