Silica Fume:  A by-product of producing certain metals and ceramics, Silica Fume is a highly reactive material which is used in relatively small amounts to enhance the properties of both fresh and hardened concrete.

The benefits of Silica Fume in fresh concrete include:

• Increased Cohesion

• Reduced Bleeding

The benefits of Silica Fume in hardened concrete include:

• Enhanced mechanical properties

• Reduced permeability

Some further benefits achieved in design/constructability areas include:

• increased spans

• Reduce the number of girders for a given span

• A reduction in the section height for a given span.

Synergy Pigments is pleased to announce that we are now able to offer (from January 1st, 2010) two distinct types of Silica Fume to the concrete industry.

The first type is a White undensified silica fume, produced as a by-product of ceramic manufacture in Australia.

The second (available from Synergy Pigments post-December 2009) is an imported densified, grey silica fume;  the well respected and tested product from Restec.   Approved by ATIC (formerly known as CCURG) for main roads construction projects in Victoria, New South Wales and Queensland.