Pavement Preservation Journal - Summer 2017 - 35

In Visalia, the application rate varies
between 0.07 to 0.10 gal per sq. yd. of
the asphalt emulsion diluted with water
2:1. The job is to maximize the absorption of the rejuvenator, then allow it to
cure for a minimum one to two hours,
followed by sanding and mechanical
sweeping within the same day or within
a 24-hour period.
Penetration and viscosity testing utilizing Caltrans test methods and dynamic
shear rheometer (DSR) testing showed
substantial improvement in penetration
and viscosity, leading to reduced stiffness of the binder and retarding the aging
process. Visalia's use of rejuvenators has
been so successful that it received the
2015 Project of the Year Award from the
Western Region Association for Pavement
Preservation (WRAPP, formerly the
California Chip Seal Association).
REJUVENATING RAP AND RAS
Rejuvenating applications may also be
used to rejuvenate good quality reclaimed
asphalt pavement (RAP) millings for base
placement, or for a final ride surface for
lower volume rural, residential or regional
road applications, FP2 says, adding they can
be a good choice for this purpose, as they
don't over-asphalt the existing RAP binder,
manufacturers say.
Asphalt emulsion-based rejuvenators
can be used to improve performance of
reclaimed asphalt shingles (RAS) as well.

"Rejuvenators are one way to improve
some performance properties of the asphalt
binders found in RAP and RAS," say NCAT's
Willis and Tran. "Although research has
begun on the use of rejuvenators with
asphalt mixtures containing higher recycled contents in the field, there are still
many questions that need to be answered
regarding their use."
The Texas DOT found that rejuvenators can improve RAP mixes. "The
initial  work ... has shown the use of
rejuvenators in recycled mixtures can

improve the cracking resistance of these
mixtures without adversely affecting
their resistance to moisture damage and
permanent deformation," says Robert
Lee, flexible pavements engineer for the
Texas DOT. "In the laboratory, all of the
mixtures using rejuvenators did improve
the moisture susceptibility and rutting
resistance of the  mixtures containing
recycled materials."
Article provided by Pavement
Technology, Inc.

Our Preservation Toolbox 
Reclamite® asphalt rejuvenator
A.R.A.-1 Ti® polymerized asphalt rejuvenator
with TiO2 for air pollutant remediation
JOINTBOND® asphalt joint stabilizer
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with TiO2 for air pollutant remediation
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PAVEMENT TECHNOLOGY, INC.

1-800-333-6309

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info@pavetechinc.com

Summer 2017 | PAVEMENT PRESERVATION JOURNAL

35

4/27/17 8:38 PM


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Table of Contents for the Digital Edition of Pavement Preservation Journal - Summer 2017

President’s Message
National Center in New Hands as Founder Galehouse Steps Aside
New ‘Synergy’ Theme of Aema-Arra-Issa Combined Meeting
Emulsions in Focus at Isaet 2016
Counties Benefit From Interactive Systems Preservation Resource
Infrastructure a Bipartisan Business
Boot Camp Boosts Preservation Interest
Fountain of Youth: Asphalt Maltene Rejuvenators Add Life to Aging Pavements
Index of Advertisers
Pavement Preservation Journal - Summer 2017 - Intro
Pavement Preservation Journal - Summer 2017 - cover1
Pavement Preservation Journal - Summer 2017 - cover2
Pavement Preservation Journal - Summer 2017 - 3
Pavement Preservation Journal - Summer 2017 - 4
Pavement Preservation Journal - Summer 2017 - 5
Pavement Preservation Journal - Summer 2017 - 6
Pavement Preservation Journal - Summer 2017 - 7
Pavement Preservation Journal - Summer 2017 - 8
Pavement Preservation Journal - Summer 2017 - President’s Message
Pavement Preservation Journal - Summer 2017 - 10
Pavement Preservation Journal - Summer 2017 - National Center in New Hands as Founder Galehouse Steps Aside
Pavement Preservation Journal - Summer 2017 - 12
Pavement Preservation Journal - Summer 2017 - 13
Pavement Preservation Journal - Summer 2017 - 14
Pavement Preservation Journal - Summer 2017 - 15
Pavement Preservation Journal - Summer 2017 - New ‘Synergy’ Theme of Aema-Arra-Issa Combined Meeting
Pavement Preservation Journal - Summer 2017 - 17
Pavement Preservation Journal - Summer 2017 - 18
Pavement Preservation Journal - Summer 2017 - Emulsions in Focus at Isaet 2016
Pavement Preservation Journal - Summer 2017 - 20
Pavement Preservation Journal - Summer 2017 - 21
Pavement Preservation Journal - Summer 2017 - Counties Benefit From Interactive Systems Preservation Resource
Pavement Preservation Journal - Summer 2017 - 23
Pavement Preservation Journal - Summer 2017 - 24
Pavement Preservation Journal - Summer 2017 - 25
Pavement Preservation Journal - Summer 2017 - 26
Pavement Preservation Journal - Summer 2017 - 27
Pavement Preservation Journal - Summer 2017 - 28
Pavement Preservation Journal - Summer 2017 - Infrastructure a Bipartisan Business
Pavement Preservation Journal - Summer 2017 - 30
Pavement Preservation Journal - Summer 2017 - Boot Camp Boosts Preservation Interest
Pavement Preservation Journal - Summer 2017 - Fountain of Youth: Asphalt Maltene Rejuvenators Add Life to Aging Pavements
Pavement Preservation Journal - Summer 2017 - 33
Pavement Preservation Journal - Summer 2017 - 34
Pavement Preservation Journal - Summer 2017 - 35
Pavement Preservation Journal - Summer 2017 - 36
Pavement Preservation Journal - Summer 2017 - Index of Advertisers
Pavement Preservation Journal - Summer 2017 - 38
Pavement Preservation Journal - Summer 2017 - cover3
Pavement Preservation Journal - Summer 2017 - cover4
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