Regen sustainability

Regen is a highly sustainable cement substitute. From its low-emissions production process to its use in long-life structures, concrete made using Regen provides many sustainability benefits.

With a worldwide production of 1.4 billion tonnes a year, the manufacture of CEM I Portland cement is regarded as a high-emissions industry. The use of cement replacements provides opportunities for significant reductions in energy use and CO2 emissions.

The most effective alternative to Portland cement is Regen, which typically replaces 50 per cent of the Portland cement in a concrete mix. Greater proportions of up to 95 per cent can be used, with advantages in special applications.

There are environmental benefits to be gained from the use of Regen as a cement substitute in both the production process and throughout the life of the structure. In its production process, Regen:

• Generates very low CO₂ emissions, as it is a by-product of iron-making
• Produces very low emissions of the harmful gasses SO₂ and NO_x
• Requires virtually no quarrying or mineral extraction

The increased durability of concrete manufactured using Regen further reduces a project’s environmental impact by:

• Reducing the amount of repair and maintenance required
• Extending the service-life of concrete structures

A comparison of the environmental impacts of Regen and Portland cement is given in the table below.