January 13, 2012
Recycling aggregates focus of new advocacy group
TORONTO
Recycling aggregates removed from demolition sites and road construction projects are the immediate focus of a new Ontario organization.
Aggregate Recycling Ontario (ARO) recently launched a campaign to encourage the use of more recycled aggregate in infrastructure projects to eliminate the growing piles of aggregate.
Adrian Van Niekerk, chair of ARO, said there is an immediate crisis in the Greater Toronto Area (GTA).
“Recycling yards are filling up to capacity with broken concrete and asphalt, yet not nearly enough is leaving the site to be used again in new construction,” he said.
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“Some facilities have had to close their yards to new deliveries because there is just no more room.”
Nearly three million tonnes of recyclable concrete, asphalt and aggregate that have been recovered from GTA construction sites now sit in piles to be processed, says the ARO.
Although the Ontario government, through the Ministry of Transportation, and some municipalities have been leaders in using recycled aggregates for years, many municipalities’ specifications do not allow recycled aggregates to be used in construction projects.
Processed properly, these aggregates meet all performance requirements and provide a suitable alternative to primary aggregates which come directly from pits and quarries, says the ARO. The ARO, which was established in July 2011, hopes to rectify any issues in municipalities and find out why they do not use recycled aggregate.
“Industry has been very progressive in separating broken concrete and asphalt from construction projects and bringing them to recycling yards to be re-processed, instead of going to landfills,” said Van Niekerk.
“We are going through similar growing pains as the paper and plastics recycling industries, when they first got started, but need to close the loop to manage our non-renewable aggregate resources more sustainably.”
Organized by the Ontario Stone, Sand & Gravel Association and the Toronto and Area Road Builders Association, ARO brings together 17 companies, and seven associations that produce and use recycled aggregates.
Member companies would like to expand opportunities for recycling aggregates by permitting more recycling facilities, especially in pits and quarries where companies can better utilize mined primary aggregates by mixing them with re-processed material. ARO also plans to engage in research and trial projects to develop new applications for recycled aggregates.
DCN NEWS SERVICES