White Silica Fume – the Ultimate Pozzolan (20kg)

MACt is pleased to offer white silica fume to produce high-performance decorative concrete. MACt have thoroughly evaluated the performance of this product and found it superior to other pozzolans and silica fume products.
We have found it to make highly workable mixes and create beautiful finishes. It is a must for GFRC or Wet cast mixes.

• Improves the properties of both fresh and hardened concrete
• The most crucial property is its permeability – lowers the ingress of movement of water or chemicals; and lower the adverse reactions such as sulfate attack.
• The reaction between silica fume and the calcium hydroxide, released as the cement hydrates, provides a dense impermeable pore structure.

Improve the mechanical performance of concrete.

• The silica fume reacts with the cement paste to form additional strong calcium silicate hydroxide (CSH), providing higher strength.
• Silica fume reduces bleeding and enhances the cement paste bond to the aggregates. Thanks to its pozzolanic effect (reaction with Ca(OH)2 ) and strength improvement.

Recommended Dosage:

• Replace 5% to 10% of your Portland Cement
• 17kg bag
• MSDS