Construction Material

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Microsilica ( Grey ) is a mineral admixture composed of very fine solid glassy spheres of silicon d i oxide (SiO2). Each particles are less than 1 micron in diameter, generally 50 to 100 times finer than average cement or fly ash particles. Frequently called condensed silica fume, microsilica is a by- product of the industrial manufacture of ferro silicon and metallic silicon in high-temperature electric arc furnaces. The ferrosilicon or silicon product is draw n off as a liquid from the bottom of the furnace. Vaporizing from the 2000-degree-C furnace bed is oxidized, and as it cools condenses into particles which are trapped in huge cloth bags. Processing the condensed fume to remove impurities and control particle size yields microsilica. It helps in compressive strength, bond strength, and abrasion resistance. 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. 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.

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CHEMICAL ANALYSIS (w/w)%:

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Concrete treated with a sodium silicate solution helps to significantly reduce porosity in most masonry products such as concrete, stucco, and plasters. A chemical reaction occurs with the excess Ca(OH)2 (portlandite) present in the concrete that permanently binds the silicates with the surface, making them far more durable and water repellent. This treatment generally is applied only after the initial cure has taken place (7 days or so depending on conditions). These coatings are known as silicate mineral paint.

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Approx. Rs 16.50 / KilogramGet Latest Price

We offer a wide range of Silica Flour,which is processed using best grade natural silica, sourced in from reliable market vendors. We offer good quality silica flour to our clients which are processed using premium grade natural silica, sourced in from reliable market vendors. These are available at cost effective price.

Features:

• Longer shelf life
• Precise pH value
• Purity

Certificate of analysis:

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• Longer shelf life
• Accurate composition
• Optimum binding strength
• Purity Accurate composition
• Longer shelf life
• Aggregate Concrete
• Concrete AdmixtureCement admixture
• Ultra High Strength Concrete
• It Is A Very Reactive And Effective Pozzoloanic Material, Due To Its Fine Particle Size AndHigh Purity Of Sio2 ( 99.5% ) Content.
• It Enhances The Mechanical Properties, Durability And Construct ability In Concrete,
• It Is Used In The Production Of High Strength & High Performance Concrete,
• It Is Used In The Production Of High Performance Concrete Structures Like Bridge’s Where The Strength And Durability Properties Of The Concrete Is Required.
• It Can Be Used To Build Marine Structures As It Reduces The Damage Caused Due To The Reaction Of Chloride And Various Chemicals, It Helps In Protection Of Steel From Rust And Corrosion And Increases The Life Of The Structure.
• The Recommended Dosage Is 7 – 10 % Of The Cement Weight Added To The Concrete.

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Approx. Rs 675 / KilogramGet Latest Price

Nano silica in the construction industry, extensive research is going on to improve the performance of various building materials and development of durable and sustainable concrete. Among all the nano-materials, nano-silica is the most widely used material in the cement and concrete to improve the performance because of its pozzolanic reactivity besides the pore-filling effect. concrete strength is influenced by lots of factors like concrete ingredients, age, ratio of water to cement materials, etc. Nano-silica incorporation into concrete resulted in higher compressive strength than that of normal concrete to a considerable level. for nano-silica blended concretes up to maximum limit of 2% with average particle size of 15 and 80 nm. Same results were obtained for split tensile and flexural strength.