Specifications

micro silica:
SiO2 85-97
Loss on ignition 975 1.9-2.5 %
Activity index120-125%
Factory supply

Densified Silica Fume for Concrete/Cement/Refractory

 

 

 

Description:

 

 

1.  Microsilica fume (scientific name "silica fume," Micro-silica or Silica Fume).

 

2. its average granule diameter is 0.15~0.20 µm,specific surface area is 15000~20000 m2/kg, and it has extremely strong surface active.

 

3. Micro silica fume can be used in a variety of cementation products, such as concrete, grouts, and mortars as well as elastomeric, polymer, refractory, ceramic and rubber applications

 

4. It is acid-insoluble (except HF), slightly soluble in KOH solution.

 

5. It possesses optical activity, pyroelectricity, and piezoelectricity. There are usually solid, liquid, and

 

gaseous inclusion in the crystalloid, and it contains microelement ion, Ore are usually in grey, yellow,

 

etc.

 

 

 

 

 

Application:

 

Steel and foundry: Blast furnace troughs and runners, ladle linings, sliding gates, etc.

Cement: Preheater linings, lining in the chain system and lining of in- and outlet zones of rotary kilns

Glass and ceramics: Kiln furniture.

 

 Advantage:

 

 

Dense castables

Improved flow

Hot strength

Strength during heat-up

 

 

 

 

 

Silica fume Specification:

 

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

 

 

Packing:

 

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

 

2. Small bags inside ton bags (20kgs, 25kgs, 50kgs per bag).

 

3. 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.

 

Our quality has been certificated:

 

 

 

Our factory overview:

 

 

 

 

 

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interest, don't hesitate to contact me.