Micro silica fume astm c1240.
Micro Silica
Silica is mainly used as a carrier of agricultural chemicals. Finely crushed silica powder is coated with agricultural chemicals and sold on the market for agricultural use. Silica itself has no effects; it merely serves as a carrier, and so can be dispersed without affecting the farmland, which makes it advantageous as a core material. It's used as Fire-resistant product powder, Agricultural chemical carrier, Agricultural chemical carrier, Construction board
Silica fume Analysisresult 900 (%)920 (%)940 (%)970 (%) Sio289.0292.0994.896.77 K2o1.321.120.630.26 Na2o0.520.420.350.29 Ph value8.187.786.607.10 Loi 750f¦1.801.600.900.80 Moisture content (when bagged) 0.41 0.400.430.41 Coarse particles:·+45 micron 64.732.6 Specific surface area (b.E.T.)1 8 m2/g19 m2/g19 m2/g19 m2/g Bulk density(kg/m3) 200~350 (900u)200~350 (920u)200~350 (940u) 500~600 (900d)500~600 (920d)200~350 (940u) 800kg/jumbo bag, 20'fcl contains 16 tons.
a. Name of product : Micro Silica (Silica fume) b. Price of product: negotiable c. Product origin: Kuwait d. Key Specifications/Special Features: SIO2 90-95% e. Harmonization System (HS) Code : f. Minimum Order Size : 100mt g. Packaging details : in bags
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
Silica fume, fly ash, micro silica fume.
Microsilica silica fume.
Silica fume, micro silica.
Micro silica, silica fume.
Micro silica, silica fume.
Micro Silica Powder that we offer is well processed and therefore, is the perfect option on which buyers can easily rely. We are named among the renowned Manufacturers, Exporters and Suppliers of Micro Silica Powder. It is formulated under the strict vigilance of experts so as to ensure its accurate composition. One can place retail as well as bulk orders for Micro Silica Powder with us. Description : Silica fume consists of very fine particles. Because of its extreme fineness and high silica content, silica fume is a highly effective pozzolanic material. Being a highly reactive pozzolan, silica fume chemically reacts with the calcium hydroxide present in the cement paste, creating a stronger calcium silica hydrate 'making it sticky'. The result is improved paste to aggregate bond (excellent for shotcrete) and higher concrete strengths. Silica Fume is typically grey in colour and is categorised as a supplementary cementitious material (SCM). Silica Fume is compliant to AS/NZ 3582.3:2002 and is described as a Densified Amorphous Fumed Silica. Typical Uses : Silica Fume can be used to produce all grades of concretes. The chemical and physical properties of Silica Fume can greatly enhance the strength performance and the bonding properties of concrete. Silica Fume can be used in various applications and projects: Commercial, Civil, Mining and Marine projects. Silica Fume is suitable for inclusion in general concrete mix designs and in particular has application in high strength/ performance concretes and shotcrete / spray mixes. Features : The addition of Silica Fume can provide; Increase compressive strength Reduces chloride ion permeability Increase abrasion resistance Enhanced sulphate resistance Improved durability Enhanced resistance to chemical attack and deterioration Increase bond strength
Micro silica, silica fume, densifed micro silica.
Silica fume, micro-silica.
Micro Silica (Silica Fume).
Micro silica / silica fume.Exporter
Undensified silica fume cl85 cl88 cl90 cl92 cl93 Densified silica fume cl85 cl88 cl90 cl92 cl93 Micro silica packaging Option 1. 25kg/degradable bag; 40bags/pallet, 750-840bags/20gp Option 2. 1000kg/bag; (2bag/pallet, 20bags/20gp) Option 3. 900kg/bag or 950kg/bag (2bag/pallet, 16-18bags/20gp)
MARKCHEM MICRO SILCIA is composed of silicon dioxide (SiO2), collected from silicon metal and ferrosilicon. Micro Silica will react with the Calcium Hydroxide from the cement, which will form more of the Calcium Silicate hydrate, increasing the strength of the concrete. Using Micro Silica will also increase the durability of the concrete.
Dsf92 Sio2: 92.52% Fe2o3: 0.15% Al2o3: 0.33% Cao+mgo: 0.56% K2o: 0.21% Na2o: 0.18% H2o: 2.03% Moisture: 1.11% Loss110:0.59% Loss on ignition(l.O.I)1000: 2.57% Ph: 6.68 Specific surface area(b.E.T): 22.53m2/g Average granularity: 98nm Retained on 45m: 2.03% Bulk density: 350kg/m3 Accelerated pozzolanic strength activity index(7days):140%. 1 ton in one jumbo bag with pe liner
We are supplier and exporter of Silica Sand. Silica Sand * Silica Sand is a type of sand usually available in the form of quartz. It is a hard and crystalline form of mineral components. * Silica sand is the most abundant mineral with the purity more than 99.0%. It is the preferred choice of consumption for various industrial purposes.
