Pavement Preservation Journal - Summer 2018 - 19

Eco-efficiency analysis showed
both a significant life-cycle
environmental and cost
advantage for cape seal pavement
preservation technologies.
eco-efficiency advantage over the HMA
overlay (worst performing alternative) and
around a five percent advantage over the
GTR-modified cape seal.
For the California (West Coast) assessment,
the asphalt rubber (AR) modified cape seal
alternative was the most eco-efficient alternative-over 30 percent better than the least
eco-efficient alternative, the HMA overlay.
The polymer modified, emulsion-based cape
seal (Cape Seal II) trailed the AR-modified
cape seal, but was still about 15 percent
more eco-efficient than the HMA overlay.
This case study also looked at conducting
various scenario analyses that influenced the
eco-efficiency of the assessed alternatives.
One specific group of assessments focused
on the standard road construction practice
of hot mix overlays (HMA) and evaluated
technologies that could reduce the HMA production and application temperatures, while
additionally allowing for the increase in RAP.
Research5 has shown that it is possible to reduce HMA production temperatures by as much as 100 deg F while
also allowing for increased amounts of
RAP, ultimately leading to lower overall resource and energy consumption.
The assessment showed significant
eco-efficiency improvements for hot mix
overlays if these temperature reductions
and RAP increases are possible without
compromising any technical or performance characteristics.
CONCLUSIONS
The eco-efficiency analysis tool facilitates
strategic decision making along the entire
value chain, enabling companies to drive
innovative product development focused
on bringing more sustainable products to
the marketplace.
Specific to this study, the eco-efficiency
analysis showed both a significant
life-cycle environmental and cost advantage for cape seal pavement preservation

REFERENCES
1. Cape Seal Eco-Efficiency Analysis

technologies over hot mix overlays for two
regions in the United States.
Finally, the author would like to acknowledge Mark Ishee, vice president, Pavement
Preservation & Specialty Products at Ergon
Asphalt & Emulsions Inc., and 2018 president of AEMA; Sally Houston, technical
manager at VSS Emultech and 2018 president of WRAPP; and Arlis Kadrmas, technical development lead, Construction and
Fiber Bonding, BASF Corporation, for their
significant contributions to the study.
Uhlman is manager, Applied Sustainability,
for BASF Corporation, Florham Park, N.J.
Edited by Pavement Preservation Journal

Preservation

Final Report; January 2018. http://
info.nsf.org/Certified/Sustain/listings.
asp?standard=P352
2. Cornell Local Roads Program. What is
a Cape Seal and how is it compared to
other Surface Treatments, http://www.
clrp.cornell.edu/q-a/075-cape_seal.html
3. Hajj, Elie Y., Sebaaly Peter E. and
Habbouche, Jhony, Laboratory Evaluation
of Thin Asphalt Concrete Overlays
for Pavement Preservation. Report
WRSC-UNR-TAO-201602. Table 3
Treatment Life of and Cost Estimate for
Selected Preventive Maintenance
Treatments. Page 14. 2016
4. Life Cycle Cost A nalysis in
Pavement Design, Publication No.
FHWA-SA-98-079. Pages. xii-xiii
5. Hansen, Kent R. and Copeland, Audrey;
Asphalt Pavement Industry Survey on
Recycled Materials and Warm-Mix
Asphalt Usage; Information Series
138; NAPA (National Asphalt Pavement
Association); 2015

Construction

Specialty Applications

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MATERIALS & SUPPLY

Summer 2018 | PAVEMENT PRESERVATION JOURNAL

19

4/18/11 9:39:45 PM


http://info.nsf.org/Certified/Sustain/listings http://info.nsf.org/Certified/Sustain/listings http://clrp.cornell.edu/q-a/075-cape_seal.html http://clrp.cornell.edu/q-a/075-cape_seal.html http://www.asphalt-materials.com http://WWW.ASPHALT-MATERIALS.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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