Silica fume, also known as micro silica is an amorphous silicon dioxide, silica. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy productionThe main field of application is as pozzolanic material for high performance concrete.
Technical Specifications:
SiO2 â?? Silica : >90%
Color : Grey
Application
Because of its extreme fineness and high silica content, silica fume is a very effective pozzolanic material. Standard specifications for silica fume used in cementitious mixtures are ASTM C1240,[8] EN 13263.[9]
Silica fume is added to cement concrete to improve its properties, in particular its compressive strength, bond strength, and abrasion resistance. These improvements stem from both the mechanical improvements resulting from addition of a very fine powder to the cement paste mix as well as from the pozzolanic reactions between the silica fume and free calcium hydroxide in the paste.
Addition of silica fume also reduces the permeability of concrete to chloride ions, which protects the reinforcing steel of concrete from corrosion, especially in chloride-rich environments such as coastal regions and those of humid continental roadways and runways (because of the use of deicing salts) and saltwater bridges.
Effects of silica fume on different properties of fresh and hardened concrete include
a) Workability: With the addition of silica fume, the slump loss with time is directly proportional to increase in the silica fume content due to the introduction of large surface area in the concrete mix by its addition. Although the slump decreases, the mix remains highly cohesive.
b) Segregation and bleeding: Silica fume reduces bleeding significantly because the free water is consumed in wetting of the large surface area of the silica fume and hence the free water left in the mix for bleeding also decreases. Silica fume also blocks the pores in the fresh concrete so water within the concrete is not allowed to come to the surface.
Application Areas:
High performance concrete
High strength, low permeability concrete
Industrial flooring
Water tanks and sumps
Chemical storage tanks
Basements and sewerage pipelines
Refractory mixes etc.
Petroleum Referineries
Tunnels
Wholesale custom white silica gel Cat Sand Silicon Kitty Litter Supplier
- Large particles
- Instant water absorption
- Strong deodorization
0.2-0.5mm,0.5-1.5mm,0.5-2.5mm,1-3.5mm,1-4mm Size
Type Pet Cleaning & Grooming Products
Grooming Products Type Clean Up Products
Application Cats
Material Silica gel
Size 1-6MM 1-8MM or as customers' reques
Color White + 3%color (pink, yellow, green, purple, blue, red, etc)
Fragrance Strawberry, lemon, apple, lavender, sea fresh, orange,etc.
Adsorption capacity 98%
Feature
1. Aesthetic and good smell
2. Highly Adsorbent
3. Superior odor control
4. Long lasting
5. Ultra hygienic
6. Dust free
packing 3.8L,5L, 7.2L,8L,10L,15kg or 20kg compound bag or as requested
Delivery Detail within 7-25 days once confirming the order
We are a leading supplier of electroplating chemicals, industrial polishing and welding consumables, water treatment, powder coating, fertilizers. We stock and carry an extensive range of ready to use chemicals. We deal with so many different chemicals and we would like you to contact us for more information about our different chemicals and products.
Silicon dioxide, also known as silica (from the Latin silex), is a chemical compound that is an oxide of silicon with thechemical formula SiO2. It has been known since ancient times. Silica is most commonly found in nature as quartz, as well as in various living organisms. In many parts of the world, silica is the major constituent of sand. Silica is one of the most complex and most abundant families of materials, existing both as several minerals and being produced synthetically. Notable examples include fused quartz, crystal, fumed silica, silica gel, and aerogels. Applications range from structural materials to microelectronics to components used in the food industry.
the specialist in the manufacturing of silica gel desiccant. We are the supplier of silica gel blue, white and orange beads and crystals for the moisture-adsorbing process from industrial air, gases and any product packaging. Our silica gel available in Blue, White, and Orange type in beaded and granular foam.
Fine-pored Silica Gel ( type A )
:: Characteristics ::
transparent or translucent glass-like pellet or lump.
average pore diameter:2.0-3.0 rim .
specific surface area: 650-800 m2/g
pore volume : 0.35-0.45 ml/g.
specific heat : 0.92 KJ/kg.
thermal conductivity: 0.63 KJ/m.hr.
:: Use ::
Mainly used for drying and moistureproof, may also be used as catalyst carriers, absorbents, separators and variable-pressure absorbents, etc
:: Technical Data ::
ITEM Specifications Typical values
Superior class First class Qualified class
Adsorption capacity RH=20%,% â?¥ 8.0 7.0 6.0 11.2
RH=50%,% â?¥ 20.0 19.0 18.0 29.2
RH=90%,% â?¥ 30.0 29.0 28.0 37.6
Loss on heating % â?¤ 2.0 4.0 6.0 1.0
PHOL 4-8 -- -- 4
Specific resistance s,.cm â?¥ 3000 -- -- 5630
Silica % â?¥ 98 -- -- 98.5
Qualified ratic of spherical granules % â?¥ 82 -- -- 90
Size * * * 2-5mm
Bulk density g/L * * * 784
Note: qualified ratio of spherical granules is only applicable to fine-pored silica gel
:: Size :: 0.5-1.5mm . 0.5-1mm . 2-4mm . 2-5mm . 4-8mm.
:: Packing :: 25 kg per bag or 500 kg per bag,net.
:: Note :: The moisture content, packing and size may be customized per your specific requirements.
5g Silica Gel Desiccant sachets are moisture absorbing packs for humidity control and product freshness.It's micro porous structure of interlocking cavities gives a very high surface area.
