Recycling makes cents for Missouri
The Missouri Department of Transportation
(MoDOT) knows that recycling has many benefits.
With the increasing number of contractors in Missouri using recycled
asphalt and tear-off shingles, MoDOT saved $20 million on resurfacing
projects last year alone in which recycled asphalt was used as
a hot mix asphalt material.
In 2009, MoDOT used a half-million tons of reclaimed asphalt
pavement (a process known as Hot In-Place Recycling) and 53,000
tons of recycled asphalt shingles: enough roofing material to
cover the tops of nearly 17,000 homes. Beyond the cost savings,
the environmentally friendly effort reduced the amount of petroleum
MoDOT used in its road construction program by 20 percent and
significantly cut down the amount of shingles that went into
Using recycled asphalt shingles on roadways has been a success
in Missouri and is growing in popularity. Two years ago, there
were only about a half-dozen shingle suppliers and contractors
using or furnishing the recycled roofing material in Missouri.
According to Joe Schroer, a MoDOT field materials engineer, many
contractors had a wait-and-see attitude.
“When MoDOT first began to allow recycled asphalt shingles to
be added into hot mix asphalt, many contractors were leery about
how well the product would hold up on the road,” said Schroer.
“It didn’t take long for that mindset to change. Now contractors
are stepping up their use of recycled materials to be able to
compete for jobs.”
The asphalt mixture has proven to be very durable, more rut resistant
and lower in cost – factors that can’t be ignored in a highly
competitive contracting environment. Today there are 13 contractors
who use recycled asphalt shingles as a standard part of their
business and 14 collectors/processors of shingles in Missouri.
MoDOT also uses other recycled materials on the roadways such
as tires, concrete and coal cinders.
For a list of Missouri companies that recycle asphalt shingles
or paving contractors that use them, visit www.modot.org/goinggreen.