Specifications

micro silica:
SiO2 85-97
high quality & competitive price
Activity index120-125%
Factory supply

  Factory deriectly supply silica Fume/micro Silica with low price

 

 

 

 

 

Item:	Silica Fume
Description:	1.The chemical formula of quartz is SiO2.It was composed by silicon dioxide.   2. It is either translucent or opaque, milk white and hard crystalloid. Natural  quartz always contains a spot of impurity, such as Al2O3,CaO,MgO etc.  Quartz has many species.   3.Its density is 2.65-2.66g/cm3, Moh’s hardness is 7, refraction is 1.533-1.541.The pure quartz is clear, trigonal or hexagonal.   4. The anisotropy upon chemical, thermal, and mechanical properties is  obvious.Quartz sand is made from high purity and high whiteness natural  quartz ore, and specially processed by unique technique.
Application:	Microsilica in refractory:   1.Microsilica Enhancing the fluid of pouring refractory, reducing the volume of  used water, be easy to shape, and raising the production efficiency. 2.Because of its untramicrostructure for gap filling, the compact and intensity  of refractory gain rising by a wade margin. 3. Microsilica 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.   Microsilica in Concrete: 1.Microsilica Makes high-grade concrete effectively enhances the strength and  pumpability of strong concrete.  2.Making high crack-resistance, self-waterproofing concrete, Microsilica  be   used  in the  subway, tunnel and basement of high-rise structures.
Advantage:	Dense castables     Improved flow     Hot strength       Strength during heat-up
Speciation:
Analysis Object(%) Model No. 97# 94# 90# 88# 85# SiO2 (Min.) 97.0 94.0 90.0 88.0 85.0 Al2O3 (Max.) 1.0 1.0 2.0 -- -- Fe2O3 (Max.) 1.0 1.0 2.0 -- -- CaO+MgO (Max.) 1.0 1.0 2.0 -- -- K2O+Na2O (Max.) 1.0 1.5 2.0 -- -- C (Max.) 1.0 2.0 2.0 2.5 3.0 NaOH (Max.) 1.0 3.0 3.0 4.0 4.5 PH (Max.) 4.5~6.5 4.5~7.5 4.5~7.5 4.5~8.5 4.5~8.5 Size above 45um (Max.) 3.0 3.0 5.0 8.0 8.0 Moisture (Max.) 15 M2/g (Max.) 1.0 2.0 2.5 3.0 3.0

 

 

 

  

Our Packing:

 

 

1. One ton jumbo bags on pallets in 20" containers.

 

2. As per customers' requirements.

 

 

 

 FAQ:

 

Q: Are you a factory or only a trading company?

    A:We are a factory.

 

 Q: Will you supply free samples?

   A: Yes,it's available.We 'd love to provide free samples.

 

Q:How soon you can get the samples?

   A:We need 1-2 days to prepare the sample and then delivery to you.

 

Q:How about the quality of the products you provide?

    A: Our quality has been certificated by ISO9001 ,and you are wormly welcomed to visit our factory and production line.

 

 

 

 

1.Strict Inspection Standards:

 

All raw materials are standered documented and checked for radioactivity and consistency at our

factory.

2.Top Quality Materials.

 

We guarantee you’ll receive the highest quality silica fume. And you are wormly welcome to visit our factory.

 

 

3.Samples  & Inspection:

 

We could provide free sample for our customers.

 

 

4.Ordering & Payment: 

 

You could place a trial order for test the quality of the goods,our minimum order quantity is 20 

tons.If the tria order met your satisfaction, you can place a official order.

 

We usually accept T/T and L/C payment and will deliver the goods within 14 working days after receipt of the advance payment/ Letter of credit.

 

 

5.Packaging& shipping:

 

1. One ton jumbo bags on pallets in 20" containers.

2. As per customers' requirements.

 

                   

  

 

Choose us , choose the most believable supplier of china

so if you have any interest, don't hesitate to contact me.