Pavement Preservation Journal - Summer 2018 - 35

PROFILES IN PRESERVATION

Surprises in Emulsions
Editor's Note: This is the sixth of a continuing series of profiles of civil engineering students who are undertaking
pavement preservation as a course of
study. These students bring a different
perspective of why a young civil engineer would pursue preservation study.
Tanner Poor has just completed his junior
year in civil engineering at the University of
Arkansas-Fayetteville. Tanner has worked
in the pavement materials research lab as
an undergraduate research assistant for
about a year and a half.
WHAT ARE THE DIFFERENT TASKS
THAT YOU WORK ON IN THE LAB FOR
THE RESEARCH GROUP?
I perform a variety of tasks all related to
the making and testing of asphalt samples.
These tasks include sieving materials and
batching these materials into samples, as
well as mixing and compacting samples,
and then running various tests on these
compacted samples. Other tasks involve
the making and testing of asphalt emulsion
and running tests to determine properties
such as pH and viscosity.
WHEN YOU FIRST MADE AN
ASPHALT EMULSION, WHAT WAS
THE BIGGEST SURPRISE?
I think the biggest surprise was how
quickly the asphalt binder can change
properties with a change in temperature.
This viscoelasticity was fascinating, especially when pouring the asphalt binder into
the laboratory bench-top scale Herbert Rink
asphalt emulsion mill during the asphalt
emulsion manufacturing process.
When I first started pouring the asphalt
binder, it was relatively easy to pour at a
consistent rate into the mill. Then after
weighing the can of asphalt binder to
see how much I had poured, it became
more difficult to pour the asphalt binder
as the binder cooled. With each successive
weight measurement, it became significantly more difficult to have the asphalt
binder flow out of the can like a liquid. It
was interesting for me to see a material
change properties like this, and to do it
in the span of a few minutes.

WHAT IS YOUR FAVORITE TEST TO
RUN ON AN ASPHALT EMULSION?
My favorite test to run on asphalt emulsion is probably calculating the asphalt
emulsion residue. It is interesting for
me to see how the asphalt emulsion is
made up of two liquids, and how these
two liquids behave very differently based

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Summer 2018 | PAVEMENT PRESERVATION JOURNAL

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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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