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THE CITIZEN, WEDNESDAY, AUGUST 4, 1993. PAGE 17.
Research develops new uses for scrap rubber
By Kathy Dermott
The rubber between you and the
road could become the surface you
drive on as Ontario's Ministry of
Transportation, in partnership
with privateindustry, researches
and develops-new uses for scrap
tires.
Recycled rubber is now
appearing as the main ingredient in
an award-winning interlocking
paving block, collars for manholes
on public roads, lightweight fill,
and even highway noise barriers.
Many of these new products are
tested by the Ontario Ministry of
Transportation, (MTO), which has
intensified its efforts to find ways
to reuse scrap tires in the past few
years. Dr. Gerhard Kennepohl,
head of pavement research in
MTO's Research and Development
Branch, says the branch's goal is to
find "value-added products" that
can be made from scrap tires for
application in the transportation
industry.
"A value-added product is one
whose applications are enhanced by
incorporating recycled materials,"
says Kermepohl. "In addition to the
obvious environmental benefits
associated with reusing scrap tires,
we want to end up with a better
product."
Annie Dozois of Kingsbridge and
Mary Gregg of Goderich are the
first winners in the "Mile in Your
Shoes" contest sponsored by Tony
McQuail, federal New Democratic
candidate in Huron-Bruce. Their
names were drawn at an election
planning committee meeting held
July 28, at the McQuail farm near
Lucknow.
Mr. McQuail explained the
contest by saying, "Part of a
Member of Parliament's job is to
understand and represent the
concerns of his constituents. One
way to do this is to spend time with
people 'walking a mile in their
shoes'. We will be holding a
In 1990, the tire fire in
Hagersville, focused public
attention on the problems
associated with scrap tire disposal.
The 17-day fire illustrated in
graphic detail the need for
practical, environmental and
economically viable ways to reuse
some of the estimated 11 million
tires scrapped in Ontario every
year. Some 65 per cent end up in
landfill sites, 25 per cent are reused
or recycled and 10 per cent are
stockpiled.
But various government
ministries and private entrepreneurs
have spent more than a decade
researching uses for scrap tires.
And the findings of that research
are benefitting new value-added
products like the Enviropaver
interlocking paving blocks.
The blocks are the product of
Enviroblock Surfacing Canada Inc.,
a company that has been working
with federal and provincial
ministries to develop and test their
product.With the financial
assistance of the environment
ministries at both the provincial
and federal level, and technical
advice and testing by Ontario's
Transportation Ministry, the blocks
are being tested now on a suburban
road in the City of Mississauga.
monthly draw for people who want
to have me come to work with
them on whatever task they'd like. I
think it is important that we work
together so that we will have a
sense of shared accomplishment in
the job as well as a chance to talk
about the issues of importance to
them."
Annie Dozois plans to put
McQuail to work with her husband
Richard building a wood shed. He
will be learning about the workings
of a local committee when Mary
Gregg takes him to a Stop Women
Abuse Now (SWAN) committee
meeting. McQuail says he has a lot
of different skills, from changing
The blocks are made of scrap
rubber from tires, waste asphalt,
recycled plastic and other waste
plastic, molded into paving blocks
suitable for use on driveways,
school yards, parking lots, shipping
yards and bus terminals. When the
company's Mississauga plant is in
full operation, it will use 616,000
scrap tires annually, about 95,500
tons of waste asphalt and 14,000
tons of recycled plastic.
Company CEO Denis Richards
says it was the Hagersville tire fire
that sparked his inventive
imagination. "I made two obvious
conclusions -- that a market for
scrap rubber did not exist and that
the only viable solution to the
problem of scrap tires was to
recycle them," said Richards.
"The beauty of his product is that
it is a green product that answers
both of those dilemmas and offers a
practical and economical long-life
alternative to the problems and
expense of asphalt surfacing."
In 1992, the Enviropaver
interlocking block was named
Green Product of the Year in The
Financial Post's environment award
competition.
Another recycled rubber tire
product finding use on municipal
roads is the manhole transition
collar, Invented by Domal
babies and washing diapers to
house construction and farm work.
He's worked in factories, chaired
committees and run a Cabinet
Ministers office. He can wash
dishes, stock shelves or cook meals
too. He hopes to work with many
people across Huron-Bruce during
the course of the contest which will
run from now until the election.
Beth Fulton of Belgrave is the
secretary for the Huron-Bruce New
Democrats. She will be co-
ordinating the contest and anyone
interested in entering should
contact her at 357-1206 after 6 p.m.
It's a chance to get some work done
as well as share ideas with a local
candidate.
Envirotech Inc. of Toronto, the
collar can be inserted around the
opening of a manhole to absorb the
stress on the pavement caused by
the vehicles passing over it as well
as the weather-related expansion
and contraction of the pavement
against the rigid structure of the
manhole frames. Other advantages
of the rubber collars include their
ease of installation.
Each collar uses the rubber of 36
tires. If you consider that 3,000 to
4,000 manholes are repaired in the
City of Toronto each year, the new
collars could divert up to 144,000
tires from local landfill sites
annually. Provincewide, statistics
indicate that the collars have the
potential to reduce the number pf
scrap tires piling up in Ontano by
as much as 20 per cent.
Local wins "Mile in Your Shoes" contest