详情
Silica fume, also called as micro
silica, silica dust, which is a by-product of producing silicon
metal or ferrosilicon alloys. Silica fume consists primarily of
amorphous (non-crystalline) silicon dioxide (SiO2). The
individual particles are extremely small, approximately 1/**0th
the size of an average cement particle. Because of its fine
particles, large surface area, and the high SiO2 content, silica
fume is a very reactive pozzolan when used in concrete. The
quality of silica fume is specified by ASTM C ***0 and AASHTO M
**7.
Application in
concrete:
Silica
fume is widely used in concrete field especially high –
performance project, such as bridge ,airport, hydropower station.
Seawall, railway projects. The main functions as follow :
?1?Enhance
the mechanical properties of concrete
The most
important character for concrete – high strength and early
strength has been used in substructures of high-performance
concrete
?2?Improve
the durability of concrete
Significant improvements can be seen in the permeability
resistance, abrasion resistance, anti-corrosion against
chloridion, refractorily and anti-freezing of concrete
?3?Enhance
constructability
Improve
Shotcrete, Increase Early Strength, control Temperature
contractors can take advantage of the properties of silica-fume
concrete to expedite projects or to achieve properties that might
otherwise be impossible to achieve.
Technical Data:
Mandatory chemical and physical requirements Standard Value
Silicon Dioxide(SiO2) min. *3.0%
Iron Oxide (Fe2O3) max. 0.3%
Aluminium Oxide(Al2O3) max. 0.7%
Calcium Oxide (CaO) max. 0.5%
Magnesium Oxide (MgO) max. 0.5%
Sodium Oxide (Na2O) max. 0.8%
Loss on Ignition (LOI) max. 1.0%
Moisture Content % max. 1.0%
Percent Retained On *5μm max. 1.0%
Pozz. Activity Index - 7days accelerated curing min. **0%
Bulk Density ******0kg/m3
Microsilica CAS #: *********2
Microsilica Packing: **0kg/jumbo bags, and *5kg and *5kg small
plastic
woven bags. According to your demand.
国家: |
China |
型号: |
Densified Silica Fume For Concrete
|
离岸价格: |
( Negotiable ) (面議)
获取最新报价
|
位置: |
China |
最小订单价格: |
- |
最小订单: |
10 Ton |
包装细节: |
25kg bags or 1 ton big bags |
交货时间: |
5-10 working days |
供应能力: |
3600 Ton per Month |
付款方式: |
L/C, T/T, Western Union |
產品組 : |
- |