Shipment courier

First shipment of low-carbon aggregate from kaolin waste arrives in London

Recycled materials specialist GRS is celebrating the delivery to London of its first-ever shipment of low-carbon construction aggregate made from Cornish clay mine waste.

Announcing the news this morning, GRS said its first seaborne shipment of construction aggregates marked the start of a long-term agreement that would see it transport more than half a million tonnes of secondary granite, brand Enviroc, from Cornwall to the capital each year. .

The company plans to turn the aggregate into “high quality” single-use building materials for London developers looking to reduce their carbon footprint.

London consumes around 10 million tonnes of aggregates each year, which is an essential material in the construction of infrastructure, roads and buildings.

GRS said it intends to strike deals for its products with construction companies “seeking to build greener”, noting that its secondary granite product contains a “fraction” of the embodied carbon from other aggregates of construction.

He said the products had been recognized “as one of the most sustainable alternatives” to newly mined aggregates by green building organisations.

Antony Beamish, managing director of GRS Trading, said the products could help to significantly reduce the climate footprint of construction, adding that the decision to ship the waste from Cornwall to London by ship had been a deliberate decision aimed at further reduce the carbon footprint. aggregates.

“By also transporting this material by water, we can achieve unparalleled environmental performance – an independent study suggests the carbon footprint is on average 47% lower than equivalent primary aggregates,” he said. “This makes Enviroc the most durable aggregate in the UK. Using it in combination with low carbon cement, for example, could produce the lowest carbon concrete that can be achieved.”

Waste is to be turned into ‘high quality’ and ‘certified’ single-use products for the construction industry at a new £4billion aggregate processing plant being built in London’s Tilbury Port, GRS said.

The Molson CDE factory, developed by GRS and the Port of Tilbury, had been built at its portside location to ensure material could be delivered across the capital by road, rail and river using GRS’s freight business , Walsh Marine, he added.

Alongside the marine quay and processing plant, GRS said it was also bringing a rail freight terminal back into service which would allow it to transport secondary aggregates more widely in Greater London and the South East.

GRS said there was no shortage of materials in Cornwall to produce Enviroc, noting that 500 million tonnes of granite by-products lay in “huge waste piles” across the quarries of Chinese county clay.

The new venture will see GRS Cornish subsidiary Maen Karne transport the raw material from a pit near St Austell to the Port of Fowey, where it is loaded onto ships to make the 400 nautical mile journey to Tilbury for be treated there.

Beamish said the company expects its product to “change the way” materials are specified on construction jobs. “Contractors can rely on a consistent quality product that meets specifications and at the same time know that this is the most durable aggregate available – a waterborne UK-sourced industrial by-product. It doesn’t get any better than that.”