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Micro Silica

Micro Silica
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Product Code : Micro-silica
Brand Name : CETEX
Price And Quantity
  • Minimum Order Quantity
  • 25 Kilograms
  • Price Range
  • 13.00 - 20.00 INR/Kilograms
Product Specifications
  • Appearance
  • Drak Grey Colour Fine Powder
  • Grade
  • Industrial
  • Physical Form
  • Powder
  • HS Code
  • 28112200
  • Smell
  • No Smell
  • Molecular Formula
  • SiO2
  • Color
  • Other
  • Chemical Name
  • Silica Fume
  • Type
  • SiO2 – Silica
  • Usage
  • Concrete Additive; Refractory Additive
  • Water Content
  • Humidity - 1%
  • Application
  • Concrete Additive; Refractory Additive
Product Description


  • Higher compressive strength by 10-20 %
  • Reduces the rate of carbonation
  • Lower permeability – resistance to penetration of water, chloride & other chemicals
  • Lower free lime formation - delays ettringite and thaumasite formation
  • Controls bleeding in fresh concrete
  • Lower Heat of Hydration, which prevents formation of cracks.

How it work

Pozzolonic Effect  When water is added to cement, hydration occurs as shown below:

Ordinary Portland Cement (OPC) + H2O → CSH (Calcium     Silicate Hydrate) + Ca(OH)2(Free Lime)

The free lime does not contribute to strength of concrete. When combined with carbon dioxide, it forms a soluble salt, which leaches through the concrete causing efflorescence, a familiar architectural problem. Concrete is also more vulnerable to chemical attack and deterioration.

When CETEX Microsilica is added, the following reaction takes place:

Ca(OH)2 + SiO2 → H20 + CSH

The reaction reduces the amount of calcium hydroxide in the concrete.

Micro filler effect - It is an extremely fine material, with an average diameter much finer than the cement. It gets well distributed in the cementatious paste, thus blocking the bleed-water channels.



Very fine powder





Mean particle size

25 microns

SiO2– Silica

85 % minimum


2 % maximum

Loss on ignition at 800°C

4 % maximum


Available In 25 Kg Plastic Bag Or Jumbo Bag.

Trade Information
  • FOB Port
  • JNPT Nava Shewa, India
  • Payment Terms
  • Telegraphic Transfer (T/T), Cash in Advance (CID)
  • Supply Ability
  • 9000000 Kilograms Per Year
  • Sample Available
  • Yes
  • Sample Policy
  • Free samples available with shipping and taxes paid by the buyer
  • Packaging Details
  • 25kg, Jumbo Bags
  • Main Domestic Market
  • All India
  • Certifications
  • ISO 9001:2015

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