Asphalt Pavement Magazine - May/June 2017 - 42

Making the Jump From 15 Percent to 40 Percent RAP
Thinlay project is a provisional
one. Once enough projects use
and prove the efficacy of the
specification, Mogawer can assist
in developing a spec that allows for
the use of whatever rejuvenator is
in a producer's arsenal. In this case,
P.J. Keating added Delta S in-line
with the liquid asphalt cement.
The plant-based oil penetrates
the asphalt binder and carries the

Delta S into the recycled material
to reverse the oxidation of the aged
binder, restoring and softening
it, according to Montenegro.

Mill and Thin Fill
P.J. Keating began milling the night
of Oct. 19, removing pavement at
a depth of 1 inch, and completed
paving the night of Oct. 23. Rain
delays affected the crew's schedule,

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The crew used grade
control for precise milling
and swept the surface
ahead of tacking.
but all work took place between the
hours of 8 p.m. and 5 a.m., which
Berkley said allowed them to shut
down lanes and detour traffic for
completely closed night work zones.
"We did everything from soup
to nuts," Berkley said. "From
estimating and traffic control
to milling. We manufactured
and placed the hot mix."
The crew used grade control for
precise milling and swept the surface
ahead of tacking. They distributed
an RS1-H trackless tack coat at a
rate of 0.06 gallons per square yard
immediately ahead of the paver.
From curb to curb, the paving
widths varied from 22 to 40 feet,
depending on the section of the
project. From start to finish, the
P.J. Keating crew gave attention to
quality control. "This project was
a new mix for us with 40 percent
RAP," Berkley explained. "At only
1 inch, it didn't leave any room
for practice. Roland Couto was the
foreman. He dealt with that very
well. The mix is difficult to work
by hand, because of the amount
of RAP, and he and his crew
handled it very well, especially
for the first go around with it."
Although P.J. Keating is capable of
producing warm-mix asphalt (WMA)
mixes, they kept the variables on this
project to a minimum. They went
with all conventional temperatures
and conventional paving practices.
The use of a high-RAP percentage
took the mill and Thinlay
pavement preservation technique
to another sustainable level for
MassDOT District 3. The use of a
plant-based rejuvenator enhanced
their "green" even more. AP
Sandy Lender is a freelance writer
located in Beverly Hills, Fla.

42 * View 1past
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issues online at www.naylornetwork.com/nap-nxt

27/02/17 11:27 pm


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Table of Contents for the Digital Edition of Asphalt Pavement Magazine - May/June 2017

Chairman’s Commentary
Industry News
Back to Basics: Plants and Pavings
NAPA Launches Emerald Eco-Label Tool
Recycled Materials: 2015 RAP/RAS/WMA Survey Results
A High-Quality Pavement Partnership
Making the Jump From 15 Percent to 40 Percent RAP
One Secret to High Quality Pavements
Industry Calendar
Index of Advertisers/Advertisers.com
Asphalt Pavement Magazine - May/June 2017 - Intro
Asphalt Pavement Magazine - May/June 2017 - cover1
Asphalt Pavement Magazine - May/June 2017 - cover2
Asphalt Pavement Magazine - May/June 2017 - 3
Asphalt Pavement Magazine - May/June 2017 - 4
Asphalt Pavement Magazine - May/June 2017 - 5
Asphalt Pavement Magazine - May/June 2017 - 6
Asphalt Pavement Magazine - May/June 2017 - 7
Asphalt Pavement Magazine - May/June 2017 - Chairman’s Commentary
Asphalt Pavement Magazine - May/June 2017 - 9
Asphalt Pavement Magazine - May/June 2017 - Industry News
Asphalt Pavement Magazine - May/June 2017 - 11
Asphalt Pavement Magazine - May/June 2017 - 12
Asphalt Pavement Magazine - May/June 2017 - 13
Asphalt Pavement Magazine - May/June 2017 - 14
Asphalt Pavement Magazine - May/June 2017 - 15
Asphalt Pavement Magazine - May/June 2017 - 16
Asphalt Pavement Magazine - May/June 2017 - 17
Asphalt Pavement Magazine - May/June 2017 - 18
Asphalt Pavement Magazine - May/June 2017 - Back to Basics: Plants and Pavings
Asphalt Pavement Magazine - May/June 2017 - 20
Asphalt Pavement Magazine - May/June 2017 - 21
Asphalt Pavement Magazine - May/June 2017 - NAPA Launches Emerald Eco-Label Tool
Asphalt Pavement Magazine - May/June 2017 - 23
Asphalt Pavement Magazine - May/June 2017 - 24
Asphalt Pavement Magazine - May/June 2017 - 25
Asphalt Pavement Magazine - May/June 2017 - Recycled Materials: 2015 RAP/RAS/WMA Survey Results
Asphalt Pavement Magazine - May/June 2017 - 27
Asphalt Pavement Magazine - May/June 2017 - 28
Asphalt Pavement Magazine - May/June 2017 - A High-Quality Pavement Partnership
Asphalt Pavement Magazine - May/June 2017 - 30
Asphalt Pavement Magazine - May/June 2017 - 31
Asphalt Pavement Magazine - May/June 2017 - 32
Asphalt Pavement Magazine - May/June 2017 - 33
Asphalt Pavement Magazine - May/June 2017 - Making the Jump From 15 Percent to 40 Percent RAP
Asphalt Pavement Magazine - May/June 2017 - 35
Asphalt Pavement Magazine - May/June 2017 - 36
Asphalt Pavement Magazine - May/June 2017 - 37
Asphalt Pavement Magazine - May/June 2017 - 38
Asphalt Pavement Magazine - May/June 2017 - 39
Asphalt Pavement Magazine - May/June 2017 - 40
Asphalt Pavement Magazine - May/June 2017 - 41
Asphalt Pavement Magazine - May/June 2017 - 42
Asphalt Pavement Magazine - May/June 2017 - 43
Asphalt Pavement Magazine - May/June 2017 - 44
Asphalt Pavement Magazine - May/June 2017 - 45
Asphalt Pavement Magazine - May/June 2017 - One Secret to High Quality Pavements
Asphalt Pavement Magazine - May/June 2017 - 47
Asphalt Pavement Magazine - May/June 2017 - 48
Asphalt Pavement Magazine - May/June 2017 - 49
Asphalt Pavement Magazine - May/June 2017 - 50
Asphalt Pavement Magazine - May/June 2017 - 51
Asphalt Pavement Magazine - May/June 2017 - Industry Calendar
Asphalt Pavement Magazine - May/June 2017 - 53
Asphalt Pavement Magazine - May/June 2017 - 54
Asphalt Pavement Magazine - May/June 2017 - Index of Advertisers/Advertisers.com
Asphalt Pavement Magazine - May/June 2017 - 56
Asphalt Pavement Magazine - May/June 2017 - 57
Asphalt Pavement Magazine - May/June 2017 - 58
Asphalt Pavement Magazine - May/June 2017 - cover3
Asphalt Pavement Magazine - May/June 2017 - cover4
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