Asphalt Pavement Magazine - September/October 2017 - 21

Back to Basics: Designed to Perform
the last model. When it comes to
asphalt materials, sometimes we
have been reluctant to advance
our mix or pavement designs; the
industry's environment is risk
adverse. Our pavement structural
design standards in many locations
were originated in the 1960s, and
while our mix designs are newer,
we are struggling to move beyond a
basic Superpave design scenario.
When the AASHO Road Test was
constructed, innovators were ready
to change the way design was done.
When Superpave mix design was
completed, the team challenged
the industry to move forward to a
design level that included extensive
performance testing. Today, we
stand years later still using many
of the original concepts from the
AASHO Road Test and Level 1 or 2
Superpave mix designs. Some might
say that moving beyond what we
know makes us uncomfortable and
others may say we aren't ready, but

ENGINEERED

ADDITIVES

Whether you are a state agency, parking lot
owner or an airfield, performance is what matters
to owners and their customers, which means it is
what should matter to producers.
there were probably people making
those same comments in the 1960s
and 1990s when these new products
were being introduced. Henry Ford
said, "If I had asked people what
they wanted, they would have
said faster horses." We must stop
thinking about challenges and
start determining what must we
do to move forward and ensure
performance.
Ensuring performance does
not mean leaving what we
know behind. In fact, it is the
exact opposite. We embrace the
fundamentals that we know, but we
can then expand on them. We can

use them to advance and grow and,
ultimately, make our pavements
and mixtures better.
I want to invite you to come
be a part of this discussion for the
industry. While we will discuss a few
fundamentals at the meeting, the
goal will be to look at the current
state of asphalt pavement and mix
design, and begin moving forward
without losing sight of the ultimate
goal: performance. AP
Dr. J. Richard Willis is Director of
Engineering & Innovation at NAPA.
He can be contacted at
RWillis@AsphaltPavement.org.

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Asphalt Pavement Magazine - September/October
21
5/16/172017
12:38*PM


http://www.engineeredadditives.com http://www.engineeredadditives.com

Table of Contents for the Digital Edition of Asphalt Pavement Magazine - September/October 2017

Chairman’s Commentary
Industry News
Back to Basics: Designed to Perform
NAPA President Mike Acott Talks About Thinlays
Asphalt Pavement Alliance 2016 Perpetual Pavement Awards
PerRoad Version 4.3: Perpetual Pavement Design Software
Tools for the Trade
Industry Calendar
Index of Advertisers/Advertisers.com
Asphalt Pavement Magazine - September/October 2017 - Intro
Asphalt Pavement Magazine - September/October 2017 - cover1
Asphalt Pavement Magazine - September/October 2017 - cover2
Asphalt Pavement Magazine - September/October 2017 - 3
Asphalt Pavement Magazine - September/October 2017 - 4
Asphalt Pavement Magazine - September/October 2017 - 5
Asphalt Pavement Magazine - September/October 2017 - 6
Asphalt Pavement Magazine - September/October 2017 - 7
Asphalt Pavement Magazine - September/October 2017 - 8
Asphalt Pavement Magazine - September/October 2017 - Chairman’s Commentary
Asphalt Pavement Magazine - September/October 2017 - 10
Asphalt Pavement Magazine - September/October 2017 - Industry News
Asphalt Pavement Magazine - September/October 2017 - 12
Asphalt Pavement Magazine - September/October 2017 - 13
Asphalt Pavement Magazine - September/October 2017 - 14
Asphalt Pavement Magazine - September/October 2017 - 15
Asphalt Pavement Magazine - September/October 2017 - 16
Asphalt Pavement Magazine - September/October 2017 - 17
Asphalt Pavement Magazine - September/October 2017 - 18
Asphalt Pavement Magazine - September/October 2017 - Back to Basics: Designed to Perform
Asphalt Pavement Magazine - September/October 2017 - 20
Asphalt Pavement Magazine - September/October 2017 - 21
Asphalt Pavement Magazine - September/October 2017 - NAPA President Mike Acott Talks About Thinlays
Asphalt Pavement Magazine - September/October 2017 - 23
Asphalt Pavement Magazine - September/October 2017 - 24
Asphalt Pavement Magazine - September/October 2017 - 25
Asphalt Pavement Magazine - September/October 2017 - 26
Asphalt Pavement Magazine - September/October 2017 - 27
Asphalt Pavement Magazine - September/October 2017 - 28
Asphalt Pavement Magazine - September/October 2017 - 29
Asphalt Pavement Magazine - September/October 2017 - 30
Asphalt Pavement Magazine - September/October 2017 - 31
Asphalt Pavement Magazine - September/October 2017 - Asphalt Pavement Alliance 2016 Perpetual Pavement Awards
Asphalt Pavement Magazine - September/October 2017 - 33
Asphalt Pavement Magazine - September/October 2017 - 34
Asphalt Pavement Magazine - September/October 2017 - 35
Asphalt Pavement Magazine - September/October 2017 - 36
Asphalt Pavement Magazine - September/October 2017 - 37
Asphalt Pavement Magazine - September/October 2017 - 38
Asphalt Pavement Magazine - September/October 2017 - 39
Asphalt Pavement Magazine - September/October 2017 - PerRoad Version 4.3: Perpetual Pavement Design Software
Asphalt Pavement Magazine - September/October 2017 - 41
Asphalt Pavement Magazine - September/October 2017 - 42
Asphalt Pavement Magazine - September/October 2017 - 43
Asphalt Pavement Magazine - September/October 2017 - 44
Asphalt Pavement Magazine - September/October 2017 - Tools for the Trade
Asphalt Pavement Magazine - September/October 2017 - 46
Asphalt Pavement Magazine - September/October 2017 - 47
Asphalt Pavement Magazine - September/October 2017 - 48
Asphalt Pavement Magazine - September/October 2017 - 49
Asphalt Pavement Magazine - September/October 2017 - 50
Asphalt Pavement Magazine - September/October 2017 - 51
Asphalt Pavement Magazine - September/October 2017 - 52
Asphalt Pavement Magazine - September/October 2017 - Industry Calendar
Asphalt Pavement Magazine - September/October 2017 - 54
Asphalt Pavement Magazine - September/October 2017 - Index of Advertisers/Advertisers.com
Asphalt Pavement Magazine - September/October 2017 - 56
Asphalt Pavement Magazine - September/October 2017 - 57
Asphalt Pavement Magazine - September/October 2017 - 58
Asphalt Pavement Magazine - September/October 2017 - cover3
Asphalt Pavement Magazine - September/October 2017 - cover4
Asphalt Pavement Magazine - September/October 2017 - outsert1
Asphalt Pavement Magazine - September/October 2017 - outsert2
Asphalt Pavement Magazine - September/October 2017 - BG1
Asphalt Pavement Magazine - September/October 2017 - BG2
Asphalt Pavement Magazine - September/October 2017 - BG3
Asphalt Pavement Magazine - September/October 2017 - BG4
Asphalt Pavement Magazine - September/October 2017 - BG5
Asphalt Pavement Magazine - September/October 2017 - BG6
Asphalt Pavement Magazine - September/October 2017 - BG7
Asphalt Pavement Magazine - September/October 2017 - BG8
Asphalt Pavement Magazine - September/October 2017 - BG9
Asphalt Pavement Magazine - September/October 2017 - BG10
Asphalt Pavement Magazine - September/October 2017 - BG11
Asphalt Pavement Magazine - September/October 2017 - BG12
Asphalt Pavement Magazine - September/October 2017 - BG13
Asphalt Pavement Magazine - September/October 2017 - BG14
Asphalt Pavement Magazine - September/October 2017 - BG15
Asphalt Pavement Magazine - September/October 2017 - BG16
Asphalt Pavement Magazine - September/October 2017 - BG17
Asphalt Pavement Magazine - September/October 2017 - BG18
Asphalt Pavement Magazine - September/October 2017 - BG19
Asphalt Pavement Magazine - September/October 2017 - BG20
Asphalt Pavement Magazine - September/October 2017 - BG21
Asphalt Pavement Magazine - September/October 2017 - BG22
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Asphalt Pavement Magazine - September/October 2017 - BG24
Asphalt Pavement Magazine - September/October 2017 - BG25
Asphalt Pavement Magazine - September/October 2017 - BG26
Asphalt Pavement Magazine - September/October 2017 - BG27
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Asphalt Pavement Magazine - September/October 2017 - BG29
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Asphalt Pavement Magazine - September/October 2017 - BG31
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Asphalt Pavement Magazine - September/October 2017 - BG33
Asphalt Pavement Magazine - September/October 2017 - BG34
Asphalt Pavement Magazine - September/October 2017 - BG35
Asphalt Pavement Magazine - September/October 2017 - BG36
Asphalt Pavement Magazine - September/October 2017 - BG37
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Asphalt Pavement Magazine - September/October 2017 - BG39
Asphalt Pavement Magazine - September/October 2017 - BG40
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