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Microsilica

Microsilica
Microsilica

Product Description

Hammer - Microsilica

Microsilica, also known as silica fume, is a very fine pozzolanic material, composed of amorphous silica produced by electric arc furnaces as a by-product of the production of elemental silicon or ferro silicon alloys, which can be used in a variety of cementitious products such as concrete, grouts and mortars as well as elastomer, polymer, refractory, ceramic and rubber applications.

Very high specific surface area (min. 15000m2/kg)
Very high content of amorphous silicon dioxide (SiO2: 80% - 97%)
Very efficient filler (average particle diameter is 0.15microns, about 100x smaller than cement)
Very reactive pozzolan

Xiamen Bentonite International Corporation (XBIC), as a professional supplier of Microsilica, has established long-term partnerships with several large-scale ferrosilicon and silicon metal factories in China, and set up standardized equipments to collect and densify microsilica for many years. Our annual output of Hammer - Microsilica is nearly 100, 000mt, which is produced in conformance with the ASTM C1240 specification, and the quality is controlled and monitored throughout the entire production process to ensure that it meets or exceeds the specification requirements.

The SiO2-content ranges from 80% to 97%, and our Microsilica are classified as follows:

Hammer - Microsilica D80      SiO2: 80% - 85%      Bulk Density: 550 - 700kgs/m3
Hammer - Microsilica D85      SiO2: 85% - 88%      Bulk Density: 550 - 700kgs/m3
Hammer - Microsilica D88      SiO2: 88% - 90%      Bulk Density: 550 - 700kgs/m3
Hammer - Microsilica D90      SiO2: 90% - 93%      Bulk Density: 550 - 700kgs/m3
Hammer - Microsilica D93      SiO2: 93% - 96%      Bulk Density: 550 - 700kgs/m3
Hammer - Microsilica D96      SiO2: 96% - 97%      Bulk Density: 550 - 700kgs/m3

Packaging

Hammer - Microsilica is supplied in UV-proof and aging-resistant jumbo bag according to GB/T10454 and EN ISO 21898, which is suitable to be stored in a severe environment for long term.

Packed in 900kgs jumbo PP bag with PE liner (2bags on a pallet), 20bags / 10pallets (18mt) into 1 x 20ft. Container.

Chemical Composition
 
ASTM C1240
 
EN 13263: 2005
 
JIS A 6207: 2000
 
GB/T 21236: 2007
 
SiO2
 
min. 85.0%
 
min. 85.0%
 
min. 85.0%
 
min. 85.0%
 
Al2O3
 
-
 
max. 1.50%
 
max. 1.50%
 
-
 
Fe2O3
 
-
 
max. 2.00%
 
max. 2.00%
 
-
 
CaO+MgO
 
-
 
max. 2.00%
 
max. 2.00%
 
-
 
K2O+Na2O
 
-
 
max. 2.00%
 
max. 2.00%
 
-
 
C
 
-
 
-
 
-
 
max. 2.50%
 
Cl
 
-
 
max. 0.30%
 
max. 0.10%
 
max. 0.30%
 
pH
 
-
 
-
 
4.00 – 8.50
 
-
 
Loss on ignition
 
max. 6.00%
 
max. 4.00%
 
max. 5.00%
 
max. 6.00%
 
Moisture content
 
max. 3.00%
 
-
 
max. 3.00%
 
max. 3.00%
 

 
Physical Properties
 
ASTM C1240
 
EN 13263: 2005
 
JIS A 6207: 2000
 
GB/T 21236: 2007
 
Specific surface
 
min. 15.0m 2 /gram
 
15.0-35.0m 2 /gram
 
min. 15.0m 2 /gram
 
min. 15.0m 2 /gram
 
Bulk density
 
-
 
-
 
-
 
550 – 700kgs/m 3
 
Percent retained on 45μm sieve
 
max. 10%
 
-
 
-
 
max. 10.0%
 
Pozzolanic activity index at 7 days
 
min. 105%
 
-
 
min. 95%
 
-
 
Pozzolanic activity index at 28 days
 
-
 
min. 100%
 
min. 105%
 
min. 85%
 
Ratio of water demand
 
-
 
-
 
-
 
max. 125%
 

More Product Features

Trademark: Hammer
Standard: YB/T115-2004
Productivity: 5000mt/month
Origin: China
Transportation: 15-20days
Company: Xiamen Bentonite International Corporation

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