Micro Silica

Advantages 

• Higher compressive strength by 10-20%
• Reduces the rate if 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

Properties

• Appearance – very fine powder
• Color – Grey 
• Odour- Odorless
• Mean Particle size -  25 Microns
• SiO2 –Silica 90% Minimum
• Humidity – 2% Maximum 

How  it works  :

Pozzolanic effect: It increases the performance of concrete & mortar formation. It acts physically to optimize particle packing of concrete or mortar mixture and chemically as a  high reactive pozzolan.

Micro filler effect :

It is an extremely fine material, with an average diameter much finer than the cement. It gets well distributed in the cementations paste, thus blocking the bleed – water channels.

Packaging  :

Available in 25 kg Plastic Bag or Jumbo Bag (1000 kg).

Quality  :

Micro Silica is a super pozzolan – a finely powdered material which when added to cementitious matter increase durability and gives higher strength. It complies with ASTM C1240.