Presentation of a software application currently under development that will allow engineers to quickly compare and evaluate pavement design and rehabilitation alternatives in terms of sustainability.

1. 12th ISAP Conference on Asphalt
Pavements
Dragos Andrei, Ph.D., P.E.
Green Up

2. WHAT IS GREEN UP?
 A software application that will produce a color-coded graphic to
illustrate the sustainable and non-sustainable aspects of
pavement rehabilitation strategies.
 An educational tool that will help users learn more about
sustainable pavement materials and practices.
 By design, Green Up was meant to be quick, simple and effective.
The target audience includes primarily those in charge of making
or approving pavement rehabilitation recommendations.

3. WHY COLORS?
 Pavement materials and
practices involve a mix of
sustainable and non-
sustainable aspects.
 Colors are an easy way to
convey a wealth of information
relatively fast – better than a
numerical index.
 Red = Least Sustainable
 Green = Most Sustainable

4. LEGEND
 Materials Recycling
 Carbon Footprint
 Permeability
 Heat Island Effect
 Noise
 Life/Cost

5. 1: MATERIALS
RECYCLED IN
PLACERECYCLED
IMPORT
RECYCLABLE
EXPORT
WASTE
VIRGIN
MATERIAL
S

6. MATERIALS
“THICKNESS”
RECYCLED
IMPORT
RECYCLABLE
EXPORT
RECYCLED
IN-PLACE
VIRGIN
WASTE

7. COLAS 2003 GHG STUDY
SOURCE: THE ENVIRONMENTAL ROAD OF THE FUTURE, COLAS 2003

8. COLAS 2003 STUDY - GHG LEVELS
ACTIVITY HIGH MODERATE LOW
LAYDOWN Hot Recycling ~ 30
kg/t
- All others < 1 kg/t
TRANSPORT All others 3-7 kg/t - In-Place Recycling
and Stabilization < 1
kg/t
MANUFACTU
RE +
BINDERS
Portland Cement
Concrete 120-190
kg/t
Hot/Warm Mix
Asphalt, Treated
Base 30-40 kg/t
In-Place Recycling,
Stabilization,
Granular Base < 20
kg/t
AGGREGATE
S
All others 5-10 kg/t - In-Place Recycling
and Stabilization < 1
kg/t
TOTALS Portland Cement
Concrete 130-200
kg/t
Hot/Warm Mix
Asphalt, Treated
Base 35-55 kg/t
In-Place Recycling,
Stabilization, Granular
Base 10-35 kg/t

9. 2: TECHNOLOGY CATEGORIES
CATEGORY TYPICAL MATERIALS
EXTREME Portland Cement Concrete (PCC)
HOT Hot Mix Asphalt (HMA), Hot In Place Recycled Asphalt
(HIR), Treated Base (ATB, CTB)
WARM Warm Mix Asphalt (WMA)
COLD Cold Recycled Asphalt (CIR, CCPR), Full Depth
Reclamation (FDR), Cold Planing (CP), Granular Base

10. TECHNOLOGY
“THICKNESS”
WARM
HOT
COLD
EXTREME

11. 3: SURFACE PROPERTIES
SURFACE
REFLECTIVITY
NOISEPERMEABILIT
Y

12. SURFACE PROPERTIES OPTIONS

13. 4: LIFE/COST

14. LIFE/COST INPUT PARAMETERS

15. LIFE/COST
CATEGORIES
Design Life: Temporary
< 20 years
Normal
> 20 years
Long Life
> 50 years
Perpetual
> 75 years
High Cost Very Poor Poor Fair Saver
Moderate Cost Poor Fair Saver Super Saver
Low Cost Fair Saver Super Saver Excellent

16. USE: COMPARE REHAB
ALTERNATIVES
Mill and Fill 3in Mill 1.5 in, CIR 3 in and
Overlay 1.5 in

17. USER INTERFACE
Link to website with
more info on CIR

18. STATUS AND PLANS
 Greenup 1.0 for Windows available for evaluation purposes only at
PRRCenter.org/Greenup
 More research needed to set the carbon footprint thresholds.
 Add user costs to Life/Cycle input screen.
 Address any bugs and add better reporting capability.
 In the near future, make Greenup available as a web app/mobile app.
 Contractors could use it in the bidding process.
 Consultants could use it to include sustainability considerations in
their design/rehabilitation recommendations.
 Public agencies could require its use to ensure that consultants
considered several design alternatives and that sustainability is
included.
 As materials and technologies “green up,” the application should be
periodically update to reflect significant improvements.

19. ULTIMATE GOAL
 Provide practitioners with simple, convenient tool to evaluate
sustainability aspects of pavement design/rehabilitation
strategies.
 Green Up does not replace sustainability rating systems such as
LEED for Neighborhoods, Greenroads, LEED, Invest.
 Educate users about sustainable pavement materials and
practices by providing links to web sites with pertinent information.
 Promote sustainable pavement materials and practices.

20. THANK YOU
 Dragos Andrei
 California State Polytechnic University
 dandrei@csupomona.edu
 909.869.2487
 PRRCenter.org