A Simple Resurfacing Job Turns into
A Test of Teamwork
By Dave Morningstar
It looked like a routine job at first:
Remove a mile of old asphalt pavement,
repair the concrete underlay, and
then replace the asphalt.
|
The final wearing course was applied in spring
2005 to complete the project. |
Even though the road in question is the
main street of the historic downtown of
Trenton, Michigan, and the restoration
was part of a city-run, multiproject rejuvenation
program, those facts were not
enough to raise it above routine status.
Ajax Paving Industries, Inc., and concrete-repair subcontractor Cipparrone
Contracting, Inc., were scheduled to
begin the job in the fall — a traditionally
wet season in Michigan — but it did not
seem to present any unusual challenges.
“Then we started removing the asphalt,”
explains Mike Podsiad, Project Manager
for Ajax. “And things changed quickly.
Gabriel Cipparrone, the Project Manager
for Cipparrone, and I immediately knew
we had a much bigger job on our hands
than either of us had anticipated.”
An Unwelcome Surprise
What neither Ajax nor Cipparrone knew
was that the original construction had
placed the 8-inch concrete underlay on
compacted clay, a common practice
before road builders discovered the problems
it inevitably causes. Because clay is
relatively impermeable to water, it tends
to keep anything
above it, including
concrete and
asphalt, wet. That
moisture is a major
problem in states
like Michigan,
where severe winter
weather and spring “freeze-thaw” cycles
tend to destroy wet
concrete quickly.
“Much of the concrete
we had intended
to repair was
little more than rubble,” Podsiad recalls.
“We also had to remove the clay and
replace it with compacted aggregate to
bring the road up to code. The fact that
the city of Trenton was paying for the
project added some interesting challenges
to the negotiations that followed.”
Podsiad and Cipparrone worked with
both the county and the city to define the
actual scope of the project. “It turned out
that our part was nearly three times larger
than we expected,” Cipparrone says.
“While we were revising the scope, the
weather turned bad, and it stayed bad.”
Additional Complications
Because the project involved the main
street through Trenton’s historic downtown
business district, at least part of the
road had to remain in service at all times,
further complicating the project. The
local merchants were understandably
concerned about any loss of business the
project might cause and pressured the
city administration to complete the job as
quickly as possible.
The county, on the other hand, was primarily
interested in having the work
done to its specifications, which sometimes
created conflicting requirements for Podsiad and Cipparrone to work out. In some areas, for example,
the city wanted Ajax to mill away parts of the original
concrete and use the rest as a base for the repaving. The county,
however, wanted a full 8 inches of new concrete under the
entire project.
While Podsiad and Cipparrone were working to resolve these
and other issues that emerged as the work progressed, the
actual job of removing the old concrete and clay base continued
on Trenton’s main street as the weather became colder
and wetter.
“We worked the job as quickly as we could,” says Cipparrone’s
Foreman Sam DeLeon. “But the rapidly shortening days and
unseasonably cold nights basically restricted us to one shift. So
we brought in more workers and assigned additional equipment
to the job.”
The necessity for the construction team to get the concrete
down and cured before the ground froze meant working in
some nasty conditions. “Moving clay is bad enough, but
moving wet clay in a cold rain is a fairly miserable proposition
no matter how you slice it,” says DeLeon. “Fortunately, our
crews are very professional about our business, and they took
it in stride.”
A Team Effort
Despite the unfavorable working conditions, Cipparrone
worked with Andrew Caulk, the Project Engineer from the city
of Trenton, to complete the concrete work in time for Ajax
to lay a leveling course before winter stopped the project altogether.
The final wearing course was applied in spring 2005 to
complete the project.
“If Gabe and his crew had not responded like they did, this
‘routine’ job easily could have turned into a disaster,” Podsiad
notes. “They really gave 110 percent to complete the job under
some really adverse conditions. Of course, that’s why we
selected them for the concrete work in the first place.”
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