New housing development will incorporate ‘synthetic sand’ building blocks

CRDC’s South African CEO, Brett Jordaan
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RESIN8 – the panacea to the plastic pollution problem?

ALTHOUGH many grades of plastic are recyclable, only 9% ends up being recycled – which has resulted in a worldwide disposal problem that causes environmental degradation, litter and river and ocean pollution on a massive scale.

None more so in developing counties such as ours where the majority of hitherto unusable plastic waste is simply dumped into the environment, incinerated or finds its way into landfills which are rapidly reaching capacity.

The perception that plastic waste has little or no value is the crux of the problem, but that is about to change with the local introduction of RESIN8, a breakthrough concrete modifier made from mixed plastic waste of all types.

RESIN8 is a high value concrete modifier that perfectly simulates construction sand and aggregates – materials that are themselves in short supply globally. By improving the mechanical and chemical bond to cement, the product improves the structural thermal and environmental properties of concrete products; structural or non-structural, such as concrete blocks and pavers, pre-cast elements or poured in place concrete.

Benefits include:

  • Decreased weight – lighter to transport, or more blocks per truckload
  • Greater structural strength
  • Up to 20% more thermally efficient – meaningful energy savings over the life of house
  • Maintains appearance – indistinguishable from conventional blocks.

The product has been developed by CRDC (The Centre for Regenerative Design and Collaboration) and successfully used in housing development projects in Latin America.

In South Africa, the product is undergoing trials and testing at the Cape Concrete Works in Blackheath where a pilot plant has been established with the intention of scaling up the plant to produce 1 000 tons/month of RESIN8, which will translate into thousands of tons of end-concrete products. The first local project utilising RESIN8 entails construction of a 5 000 social housing project, commencing this year under the management of construction company  Martin & East.

CRDC’s South African CEO, Brett Jordaan explains that this project will incorporate RESIN8 into building blocks and other elements such as pavers and drainage pipes.

“In addition to the pilot plant at Cape Concrete Works, 12 different companies have shown an interest in the product and projections indicate that up to 21 large scale RESIN8 manufacturing facilities could soon be established each with a processing capacity of 14 000 tons of plastic waste p.a.”

“This can make a huge dent in the discarded plastic problem the country faces (estimated at 250 000 tons pa) while creating jobs for collectors and waste pickers who will be incentivized to collect what is now seen as a valuable commodity”.

“We see the introduction of RESIN8 as a vital component of the forthcoming introduction of the EPR (Extended Producer Responsibility) legislation which makes producers, brand owners and suppliers of plastic packaging materials and e-waste accountable for their responsible disposal. Recyclable plastics can go to the recyclers, the rest can turned into RESIN8!” he said.

 

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