Pavement Preservation Journal - Summer 2018 - 27

'Green' Antistrip Offers  
Option in Pennsylvania

P

ennsy Supply, Harrisburg, Pa.,
a leading asphalt producer and
paving contractor in the northeast and known for its quality
work, is constantly looking for ways to
improve the quality of its products.
Pennsy Supply manufactures asphalt
from early spring until early winter, when
temperatures can fall below freezing at
night. As such, they required an additive,
which would provide workability to the mix
to enable easier field work and paving in
low temperatures.
In 2017 the company was looking
to replace its existing antistrip modifier, which had already been on the
market for several years, with a more
worker-friendly and safer antistrip product, without sacrificing adhesion and mix
workability performance.
Another important requirement was that
the additive had to be easy to handle without being heated. In the interest of worker
safety, the company also needed an additive that would minimize health hazards
and risks to plant and paving crew personnel while improving work conditions.
After consulting with Road Science,
a Division of ArrMaz, a field trial using
NovaGrip liquid antistrip chemistry, Road
Science's new line of next-generation additives, was planned for late summer 2017.
Pennsy Supply tested it in August 2017,
on Vine St. and South Main St. in Old
Forge. There, NovaGrip was employed in
a 2-in. overlay.
NovaGrip was chosen because, the
manufacturer says, it's safer than other
antistrips, offers a non-hazardous option,
is odorless in hot asphalt and emits no
smoke, making it worker-friendly, is compatible with all asphalts and modifiers
including polyphosphoric acid (PPA), delivers improved mix workability for easier
construction, yields reliable passing tensile strength ratio (TSR) and Hamburg
Wheel Test results, and is easy to handle
and pump in cold temperatures with no
heat required.

The non-amine-based additive was
in-line blended at the hot mix asphalt plant
and introduced at a rate of 0.4 percent to
the mix. The 5.9 percent liquid AC warm
mix was manufactured at 350 tons per hour

in an Astec drum before being transported
to the job site.
During the laydown of these materials,
the screed vibration was set at 60 percent.
A Vögele paver with a Carlson screed

Preservation for the

H A U L
LOWER
LIFE-CYCLE
COSTS

LONGER
LASTING

SMOOTHER
RIDE

ENHANCED
STRUCTURAL
CAPACITY

Starting at ⅝ of an inch, Thinlays are the pavement preservation
treatment designed to extend service life while improving performance,
friction, and drivability. These thin asphalt overlays provide longlasting smoothness and can be used to increase structural capacity,
providing greater value for your pavement preservation dollar.

875770_National.indd 1

www.ThinlayAsphalt.com

Summer 2018 | PAVEMENT PRESERVATION JOURNAL

27

08/07/17 4:51 AM


http://www.ThinlayAsphalt.com http://www.ThinlayAsphalt.com

Table of Contents for the Digital Edition of Pavement Preservation Journal - Summer 2018

President’s Message
PPRS Nice 2018: U.S. in Era of Asset Management, Pavement Preservation, Says Aashto’s Wright
Measuring Sustainability of Preservation and Eco-Efficiency of Cape Seals
Dedicated, Consistent Funding for World-Class Preservation Programs
As Loadings Rise, Preservation Data Gathers
‘Green’ Antistrip Offers Option in Pennsylvania
AEMA + ARRA + ISSA = PPRA
Profiles in Preservation: Surprises in Emulsions
Index of Advertisers
Pavement Preservation Journal - Summer 2018 - Intro
Pavement Preservation Journal - Summer 2018 - cover1
Pavement Preservation Journal - Summer 2018 - cover2
Pavement Preservation Journal - Summer 2018 - 3
Pavement Preservation Journal - Summer 2018 - 4
Pavement Preservation Journal - Summer 2018 - 5
Pavement Preservation Journal - Summer 2018 - 6
Pavement Preservation Journal - Summer 2018 - 7
Pavement Preservation Journal - Summer 2018 - 8
Pavement Preservation Journal - Summer 2018 - President’s Message
Pavement Preservation Journal - Summer 2018 - PPRS Nice 2018: U.S. in Era of Asset Management, Pavement Preservation, Says Aashto’s Wright
Pavement Preservation Journal - Summer 2018 - 11
Pavement Preservation Journal - Summer 2018 - 12
Pavement Preservation Journal - Summer 2018 - 13
Pavement Preservation Journal - Summer 2018 - Measuring Sustainability of Preservation and Eco-Efficiency of Cape Seals
Pavement Preservation Journal - Summer 2018 - 15
Pavement Preservation Journal - Summer 2018 - 16
Pavement Preservation Journal - Summer 2018 - 17
Pavement Preservation Journal - Summer 2018 - 18
Pavement Preservation Journal - Summer 2018 - 19
Pavement Preservation Journal - Summer 2018 - 20
Pavement Preservation Journal - Summer 2018 - 21
Pavement Preservation Journal - Summer 2018 - Dedicated, Consistent Funding for World-Class Preservation Programs
Pavement Preservation Journal - Summer 2018 - 23
Pavement Preservation Journal - Summer 2018 - 24
Pavement Preservation Journal - Summer 2018 - As Loadings Rise, Preservation Data Gathers
Pavement Preservation Journal - Summer 2018 - 26
Pavement Preservation Journal - Summer 2018 - ‘Green’ Antistrip Offers Option in Pennsylvania
Pavement Preservation Journal - Summer 2018 - 28
Pavement Preservation Journal - Summer 2018 - 29
Pavement Preservation Journal - Summer 2018 - 30
Pavement Preservation Journal - Summer 2018 - 31
Pavement Preservation Journal - Summer 2018 - AEMA + ARRA + ISSA = PPRA
Pavement Preservation Journal - Summer 2018 - 33
Pavement Preservation Journal - Summer 2018 - 34
Pavement Preservation Journal - Summer 2018 - Profiles in Preservation: Surprises in Emulsions
Pavement Preservation Journal - Summer 2018 - 36
Pavement Preservation Journal - Summer 2018 - Index of Advertisers
Pavement Preservation Journal - Summer 2018 - 38
Pavement Preservation Journal - Summer 2018 - cover3
Pavement Preservation Journal - Summer 2018 - cover4
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