Insha Chemicals is the supplier of silica fume or micro silica fume. we have introduce silica fume in Bangladesh first time in construction industry . we supplying silica fume mostly for manufacturing high grade concrete .micro silica or silica fume increase concrete strength and fluidity .
Details :
Micro Silica Fume (Scientific name: Microsilica or Silica Fume), in the department of smelting ferrosilicon and industrial silicon, through the flue exhaust steam oxidation, specially designed silica dust collector to collect the amorphous powder SiO2. The average particle size of the micro silicon powder is 0.15-0.20μm, Specific surface area is 15000-20000 m2/kg, which has a very strong surface activity. A large number of micro silica is mainly used in cement or concrete admixture, in order to improve the performance of cement or concrete, preparation with high strength (more than C80), wear resistance, erosion resistance, corrosion resistance, anti permeability and frost resistance, early strength special concrete, used for Concrete, Refractory, High Performance Concrete, Oil and Gas Industry, Ceramics, Concrete Roofing, Wall boards, Cementation Repair Products, Concrete Tile & Panels, FCB, Shotcrete, Polymers & Elastomers and (SCC) Self-Compacting Concrete.
MECHANISM OF SILICA FUME’S POZZOLANIC REACTION IN A CEMENTITOUS SYSTEM.
Insha Chemicals supplied SILICA FUME in contact with water goes into solution within an hour. The silica in solution forms an amorphous silica rich, Ca poor, gel on the surface of the silica fume particles and agglomerates. After time the silica rich, Ca poor, coating dissolves and the agglomerates of silica fume reacts with free lime (CaOH2) to form calcium silicate hydrates (CSH). This reaction is called the pozzolanic reaction.
Advantages :
STRENGTH ECONOMY :
Increases compressive strength Increases flexural strength Reduces Permeability
Greater strength development. Potentially smaller structural section
Less rebound & reduction of wastage in shortcreting increase productivity. Reduces diffusion of chloride ions by a factor of 3 or more
Cement replacement opportunities.
DURABILITY GENERAL :
Increased concrete density.
Improved impremeability to agressive agent.
Reduces susceptibility to sulphate attack & alkali-aggregate expansion.
Improved cohesiveness reduces segregation & pumpability.
Reduced bleeding allows early finishing.
Improved finishing & electrical resistivity by more than 500%
Abrasion resistant
Substantial increase in service life of concrete in all aggressive/chemical/ marine environments.
Uses :
Ready mixed concrete and grout
Refractory industry
Offshore and marine structures
Dams, tunnels, bridges and motorways
Industrial floors
Shotcrete applications Concrete pipes
Precast ve prefabric industry High rise buildings
Details :
Micro Silica Fume (Scientific name: Microsilica or Silica Fume), in the department of smelting ferrosilicon and industrial silicon, through the flue exhaust steam oxidation, specially designed silica dust collector to collect the amorphous powder SiO2. The average particle size of the micro silicon powder is 0.15-0.20μm, Specific surface area is 15000-20000 m2/kg, which has a very strong surface activity. A large number of micro silica is mainly used in cement or concrete admixture, in order to improve the performance of cement or concrete, preparation with high strength (more than C80), wear resistance, erosion resistance, corrosion resistance, anti permeability and frost resistance, early strength special concrete, used for Concrete, Refractory, High Performance Concrete, Oil and Gas Industry, Ceramics, Concrete Roofing, Wall boards, Cementation Repair Products, Concrete Tile & Panels, FCB, Shotcrete, Polymers & Elastomers and (SCC) Self-Compacting Concrete.
MECHANISM OF SILICA FUME’S POZZOLANIC REACTION IN A CEMENTITOUS SYSTEM.
Insha Chemicals supplied SILICA FUME in contact with water goes into solution within an hour. The silica in solution forms an amorphous silica rich, Ca poor, gel on the surface of the silica fume particles and agglomerates. After time the silica rich, Ca poor, coating dissolves and the agglomerates of silica fume reacts with free lime (CaOH2) to form calcium silicate hydrates (CSH). This reaction is called the pozzolanic reaction.
Advantages :
STRENGTH ECONOMY :
Increases compressive strength Increases flexural strength Reduces Permeability
Greater strength development. Potentially smaller structural section
Less rebound & reduction of wastage in shortcreting increase productivity. Reduces diffusion of chloride ions by a factor of 3 or more
Cement replacement opportunities.
DURABILITY GENERAL :
Increased concrete density.
Improved impremeability to agressive agent.
Reduces susceptibility to sulphate attack & alkali-aggregate expansion.
Improved cohesiveness reduces segregation & pumpability.
Reduced bleeding allows early finishing.
Improved finishing & electrical resistivity by more than 500%
Abrasion resistant
Substantial increase in service life of concrete in all aggressive/chemical/ marine environments.
Uses :
Ready mixed concrete and grout
Refractory industry
Offshore and marine structures
Dams, tunnels, bridges and motorways
Industrial floors
Shotcrete applications Concrete pipes
Precast ve prefabric industry High rise buildings
Price of silica fume in Bangladesh?
ReplyDeletePrice of silica fume, price in Bangladesh
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