Page 39 - Hub-4 Magazine Issue 76
P. 39

 CDE supports materials processors to realise the value locked in CD&E waste. Using highly innovative wet processing technologies that scrub material, float off lightweights (demolition debris) and classify end products, this waste stream can be repurposed to produce washed materials free of contaminants and suitable for use in high value construction projects.
To date, CDE solutions have supported companies around the world to divert over 100 million tonnes from landfill.
“These are far from ‘alternative’ materials,” Eunan explains.
“Many material processors utilising CDE technology are successfully producing CE- and BSI-certified concrete products, including competitive concrete for non-structural – but still high value – construction projects, with some applications successfully achieving beyond C45 spec.”
In Norway, Velde Pukk AS plays a significant role in meeting the material demands in Stavanger. Utilising high-quality recycled aggregates and its on-site concrete batching plant, the firm supplies the construction industry with a CE-certified concrete from 100% recycled aggregates.
DA Mattsson, based near Stockholm in Sweden, diverts almost 100% of its incoming CD&E waste from landfill through its CDE wet processing operation. The company produces high quality sand and aggregates that meet EN 12620 specification, and it supplies these concrete materials to the Stockholm construction market.
They join some of the most advanced waste recycling plants designed and engineered by CDE in the DACH region, including the Switzerland-based WALO AG, whose 200tph CDE plant is processing a range of extremely variable feedstock, including excavation material and railway ballast. With sustainability as a focus, the plant features both closed-circuit water management and photovoltaic energy systems.
Similarly, in France, in the Greater Paris region, a 135tph wash plant enables Sodextra to produce a range of high quality and consistent in-spec concrete sand and aggregates called eco-
sand and eco-gravel, thus ensuring Paris is now also building in a sustainable way.
Rising to the challenge
“We are faced with a myriad of challenges, Eunan says. Set against the backdrop of the Covid-19 pandemic and continued rises in the cost of raw materials, these issues have been heightened and highlight the urgent need to radically adjust how we utilise the resources around us in a more circular fashion.”
Christoph agrees: “We can build back greener using sustainably sourced and recycled construction materials. CDE technology is demonstrating the potential of CD&E waste streams and we look forward to welcoming some of our most pioneering customers from the French-speaking, DACH and Scandinavian
regions to join us at bauma to talk about their vision, discuss best practice and share their experiences of collaborating with CDE.”
CDE will attend bauma 2022 in Munich (October 24-30), stand 528 Hall B2. On the stand, using a combination of 3D animations, 360-degree virtual tours, 3D-printed models and augmented reality, the company will introduce a new way of immersing visitors in its process engineering expertise and some of its most innovative projects and products, including the leading AggMax and EvoWash technologies. Sept/October 22 - Issue 76
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