Pavement Preservation Journal - Summer 2018 - 15

Unit Costs

Unit

Cape Seal I
(GTR Chip)

Cape Seal II

HMA
Overlay

Material / Pavement

$/yd2

$4.50

$4.35

$6.60

Milling

$/inch

Striping

$3.00

$/ft

$0.23

$0.23

$0.23

Material / Pavement

$/CB

$106,867

$103,304

$159,275

Striping

$/CB

$16,386

$16,386

$12,646

Disposal

$/CB

$432

$460

$447

Lane Rental Fee

$/CB

$22,326

$22,326

$17,287

Sum

$/CB

$146,011

$142,477

$189,656

Life Cycle Costs

Table 1: Life-cycle costs (southeast)

the overall environmental impact associated with the maintenance of the road.
METHODOLOGY
The purpose of an eco-efficiency analysis
is to harmonize economy and ecology, with
the aim of spurring product innovations
in chemistry, and to promote sustainable
development. The eco-efficiency analysis
provides information about the relationship or balance between the economic
benefits of a product and its impact on
the environment.
BASF has used the eco-efficiency analysis as a strategic tool since 1996, completing over 600 studies for a diverse range of
products including chemical intermediates,
consumer and personal care products, vitamins, packaging materials, adhesives and
renewable-based products.
Not only does the analysis provide the
necessary data to support strategic decisions related to new product development,
but it also provides customers and key
decision makers with a comprehensive
comparison of products or processes
that is both science-based and comprehensive. Results are also presented
in a way that is clear, easily understood
and facilitates informed decision making about the sustainable attributes of

products. The analysis has helped to
increase the market success of products
by clear and transparent differentiation
from competing technologies.
The eco-efficiency analysis assesses
the life cycle impacts of a product or
manufacturing process from the "cradle
to the grave" with equal importance to
environmental and economic impacts. As
a life-cycle approach, the unit of comparison for the assessment is defined
as the customer benefit (CB). It includes
not only the impacts of the starting and
intermediate raw materials but also takes
into consideration the consumption behavior of the end consumers during the use
phase of the product, as well as the various end-of-life options such as recycling
or landfill disposal. The comprehensive
accounting of environmental impacts for
each alternative can be reflected in an
environmental fingerprint.
Economic data also are compiled for
each alternative for their respective life
cycles. All the various costs incurred in
the manufacturing, use and disposal of
the product are included in the calculation. Using environmental relevance and
social weighting factors, the environmental impacts for each alternative are combined into a single environmental score.

Likewise, a single life-cycle cost (total
cost of ownership) for each alternative is
developed. These environmental and economic scores are plotted on a biaxial graph
known as the eco-efficiency portfolio. The
graph reveals the relative eco- efficiency
of a product or process compared to other
products or processes.
CASE STUDY
The relative life-cycle environmental
and economic impacts of multiple cape
seal technologies (pavement preservation) were comprehensively compared
against those of a standard road construction practice, namely a 1.5-inch hot
mix overlay, in two distinct regions of the
United States.
The comparison was based on the ability
of each technology to maintain a one mile
stretch of a single lane road over 40 years to
a similar profile and performance. The full
study report and findings can be obtained
on the NSF website1.
Key study assumptions that formed the
basis of the analysis included:
* A full environmental and economic
accounting was done for each assessed
alternative over their respective life cycle
and considered the production, use and
disposal phases.

Summer 2018 | PAVEMENT PRESERVATION JOURNAL

15



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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