FP McCann makes first cement-free precast pipes

Precast specialist FP McCann has manufactured what it claims are the UK’s first cement-free pipes and manhole rings using Earth Friendly Concrete (EFC) from Wagners.

Instead of Portland cement, FP McCann worked with international partners to introduce a geopolymer low-carbon binder.

The material is formed from the chemical activation of Fly Ash and Ground Granulated Blast-furnace Slag.

Geopolymer binder, made utilising the materials from recycling streams, is said to reduce the overall environmental impact and the CO₂ emissions associated with Portland cement by up to 80%.

High-performance concrete made with this novel material is achieving similar strengths to traditional materials. Plus, due to the chemistry of the geopolymer binder, it provides improved durability in many aggressive environments.

The creation of cement-free pipes follows extensive research and use in the UK’s ready-mix industry.

The next step will be an introduction of the geopolymer concrete in the precast sector.

Here, the low carbon alternatives can combine with modern manufacturing methods to create an innovative solution for the construction sector.

This work is carried out in conjunction with FP McCann’s wider low carbon initiative. The initiative sees the firm working closely with suppliers and customers to provide economical, high-quality, and sustainable products.