TEL：+86-22-58301016
Specification
Applications
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
● Jumbo bag with PE liner with uv-proof and anti-aging which conforms to GB/T10454 and EN ISO 21898.
● 20kg/25kg/50kg plastic woven bag with PE liner.
● 10kg/20kg water-soluble paper bag.
● Special packaging can be supplied on request.
● Concrete i.e UHPC, HPC, PRC, Shotcrete, Impact and abrasion resistant concrete, Prestressed Concrete etc.
● Mixing cement. I.e Oil Well Grouting.
● Wall exterior insulation material.
● Mortar, grouting agent, grouting material, etc.
● Ceramics material.
● Others, such as waterglass industry, thermal insulation materials etc.
Features
With very small particle size and high pozzolanic activity index, micro silica can improve compression resistance, flexure resistance, permeability resistance, corrosion resistance, impact resistance and wear resistance of cement and concrete. Extended service life of cement and concrete products.
Quality Control
● The chemical composition and physical properties are regularly tested.
● Inspection before delivery.
● Provide SGS inspection certificate as per customer’s requirements.
Package
|
Test Item
|
ASTM C 1240 |
BS EN 13263:2005 |
AS/NZS 3582.3:2016 |
JIS A 6207:2006 |
Typical |
|
SiO2 (%)
|
> 85 |
> 85 |
> 85 |
> 85 |
91.05 |
|
MgO (%)
|
< 5 |
0.33 |
|||
|
Elemental Silicon (%)
|
< 0.4 |
< 0.4 |
0.09 |
||
|
SO3 (%)
|
< 2.0 |
< 3.0 |
< 3.0 |
0.84 |
|
|
CL (%)
|
< 0.3 |
< 0.1 |
0.002 |
||
|
Free CaO (%)
|
< 1.0 |
< 1.0 |
0.55 |
||
|
Total Alkalis (Na2O) (%)
|
0.75 |
||||
|
Moisture (%)
|
< 3.0 |
< 3.0 |
< 3.0 |
0.61 |
|
|
LOI (%)
|
< 6.0 |
< 4.0 |
< 6.0 |
< 5.0 |
2.33 |
|
Specific Surface (BET) (m2/g)
|
> 15 |
15--35 |
> 15 |
18.53 |
|
|
Activity Index (%)
|
> 105 @ 7days |
> 100 @28 days |
> 95 @ 7days >105 @ 28days |
109 @ 7days |
|
|
Retained on 45-μm (No.325) (%)
|
< 10 |
3.52 | |||
|
Variation from Avg. Retained on 45 μm (No. 325) (%)
|
< 5 |
1.11 |
