Product Description: Micro silica ,also called silica fume or micro silica, is a byproduct of production silicon metal or ferrosilicon alloys. Silicon metal and alloys are produced in electric furnaces.The raw materials are quartz,coal and wood-chips.The smoke that results from furnace operation...Send InquiryChat Now
Micro silica ,also called silica fume or micro silica, is a byproduct of production silicon metal or ferrosilicon alloys. Silicon metal and alloys are produced in electric furnaces.The raw materials are quartz,coal and wood-chips.The smoke that results from furnace operation is collected and sold as silica fume, silica fume consists primarily of amorphous(non-crystalline) silicon dioxide(SiO2),its average granule diameter is 0.15~0.20um,specific surface area is 15000~20000m2/kg,and it has extremely strong surface active.
1).Appearance is as grey&white off.
2).High electrical resistivity
4).Superior resistance to chemical attack from chlorides,acids and sulfates
5).Low chloride ion diffusion
6).High reactive Pozzolan
7).High temperature strength
8).Improved stability ingeothermal environment
Microsilica in application of Refractories
Traditional refractories in many pores,microsilica fume filling in the pores ,increased bulk density and porosity of lower intensity can significantly enhanced.
Microsilica with strong activity in the water yo form colloidal particles,adding suitable dispersant can be strengthened liquidity, thereby improving performance casting.
Microsilica fume formed easily in the water-Si-oh and has strong hydrophilicity and activity can enhance the coshesion refractories, at the same time, high temperature performance major improvements, and extens the life of refractory products.
Microsilica fume widely used in the refractory industry following.
Replace aluminum oxide mud for refractories.
As additives production unshaped and amorphous refractory products,its strength,high temperature performance greatly improved.
Shing drums for the overall combination of procoagulant casting agent
Other refractory products cohesion agent, binder, procoagulant agent, additives.
Prevents reinforcing steel corrosion in concrete, due to its extremely low permeability to chloride-ion intrusion and high electrical resistivity.
· Greater impermeability, barring the ingress of moisture, chemicals and other contaminants
· High early strengths, assuring increased efficiency and greater cost effectiveness in production of prestressed and precast concrete
· High ultimate compressive strengths (8,000-20,000 psi), proportionate to amount of silica fume and the water-to-cementitious ratio
· Substantially greater resistance to corrosion, abrasion and erosion, chemical attack and freeze/thaw damage.
Techenical Data use for precast concrete with SGS testing
Testing Standrds of Slica fume/Microsilica
WINITOOR was established in 2004 in Quanzhou Fujian Province of China.We are specialized in the R&D.production and marketing of a series of building material: microsilica(silica fume) ,water reducing agent... they are in the application of concrete(HPC), Mortar ,Refractory,etc. We have built our own microsilica processing plant in the major area of Chinese ferro-silicon and silica metal factories,and our annual output is more than 50000 metric tons.
Relying on many years of a high reputation and good service in the international market, WINITOOR have built excellent business relationships with customers from all over the world, including Middle East countries, Japan,Korea,Viatnam,Indonesia Europe, North America,South-East Asia,Latin-America,and Africa etc.
Jumbo bag with UV- Proof function and anti-aging character.
20kgs/25kgs Double layers paper bags
10kgs /12kgs water solube paper bag.
It should be stored in a dedicated warehouse that is well-ventilated and dry,and the condition is with waterproof & mostureproof,without ultraviolet radiation attack
Conveniently transport by Road, Railway,Sea, Pay attention to waterproof & moistureproof during transportation.
Reply your inquiry in 24 working hours.
2.Experienced staffs answer all your questions in professional and fluent English.
3.Special discount and protection of sales areas provided to your distributor.
4.The content packing particle size may be based on customer demand.
5.We are aimed at doing the best alloy in China.
Winitoor hot sale high performance microsilica use for precast concrete with SGS testing
Welcome your inquiry about our products.
Our company promises:Reasonable price,efficient production time and satisfactory after-sales services.
Should you have any interest in our high grade silica fume or microsilica for special refractory mortar, welcome to contact us. With over 8 years experience in this field, our factory pays high attention to quality. Please rest assured to buy. Low price, fast delivery and excellent service are offered.