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THE CONCEPT OF PERPETUAL
ASPHALT PAVEMENTS The Next Level in The Theory of Evolution of
Flexible Pavements
Aleksander ZBOROWSKI, Karolina PEŁCZYŃSKA,
Agata GRAJEWSKA, Igor RUTTMAR
28. – 29. listopadu 2017, České Budějovice
Motto: Asfaltové vozovky – bezpečná cesta k prosperitě
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ARE YOU READY TO HEAR THE TRUTH?
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ALL WE THOUGHT
ABOUT MAKING A ROAD
PAVEMENT WAS WRONG
WE HAVE TO EVOLVE
OUR THINKING
WE NEED TO FORGET
WHAT WE KNEW
NOW
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DISCLAIMER Contrary to media reports, authors did not invent the perpetual
pavements
REINVENTING THE WHEEL?
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DEVELOPMENT OF THE FIRST ROAD STRUCTURE
TECHNOLOGIES
Modern roads
XX A.D. IV-II B.C.
Roman roads MacAdam
XVIII-XIX A.D.
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EVOLUTION OF MODERN ROADS
Nf = 15M 115kN ESAL Nf = 16,5M 115kN ESAL Nf = 54M 115kN ESAL
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PAVEMENT WITH THICK AND STIFF ASPHALT BASE LAYER
IS THIS REALLY THE BEST SOLUTION?
Source: Internet
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HOW DOES THE FLEXIBLE ASPHALT PAVEMENT WORK?
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HOW TO MAKE ROADS MORE DURABLE? FATIGUE FAILURE CRITERION, MEPDG (NCHRP 1-37A)
VMA
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TWO WAYS TO OBTAIN LONG-LIFE ASPHALT PAVEMENT
e1
Increase of the asphalt layers thicknnes
e2
Str
ain
ε (
log
)
Fatigue life N (log)
e1
e2
e1 e2
Higher quality materials in the asphalt base
e1
Str
ain
ε (
log
)
Fatigue life N (log)
e2
„endurance limit”
„endurance limit”
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TRADITIONAL ASPHALT PAVEMENT CRITICAL STRAIN AT BOTTOM – FATIGUE FAILURE
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HEAVY VEHICLE SIMULATOR HVS IN POLAND 2008 R.
A
B
C D
A
B
C D
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SPENS PROGRAM, 2008
SMA 8
EME 16
20/30
SMA 8
AC 16 W
35/50
Composite
Pavement
AC 16 W
35/50
SMA 8
AC WMS 16
20/30
AC AF +
additives
0
10
20
30
40
50
D A C B
Fa
tig
ue d
am
ag
e [%
]
0
10
20
30
40
50
D A C B
Fa
tig
ue
da
ma
ge [%
]
EME Type Standard
Pavement
Composite
Pavement Perpetual
Pavement
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FIRST TRIAL OF PERPETUAL PAVEMENT, PRUSZKÓW 2013
Pruszków, woj. Mazowieckie, 2013r.
BBTM 8A
EME 16
PMB 25/55-60
AC 5 AF
rubber modified
Perpetual Pavement
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FATIGUE RESISTANCE 4PB-PR METHOD (10 °C, 10 HZ)
100
1000
100000 1000000 10000000
Str
ain
[m
m/m
]
Number of cycles
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0
2 000
4 000
6 000
8 000
10 000
12 000
14 000
16 000
18 000
0 500000 1000000 1500000 2000000 2500000
Stiffn
ess 4
PB
-PR
, M
Pa
Number of cycles
AC WMS PMB 25/55-60 AC WMS PMB 25/55-60 WM AC WMS PMB POLYGUM 45/80-70
FATIGUE RESISTANCE 4PB-PR METHOD (10 °C, 10 HZ)
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FIRST PERPETUAL PAVEMENT WITH ANTI-FATIGUE LAYER,
2013 - 2015
Client:
Contractor:
Engineer:
WARSAW
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FIRST PERPETUAL ASPHALT PAVEMENT IN POLAND
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TRIAL SECTION OF ANTI-FATIGUE LAYER, 2014
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FIRST PERPETUAL ASPHALT PAVEMENT IN POLAND
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Wearing course SMA 8 Rubber Asphalt Binder, 3cm
Binder course AC WMS 16 PMB 25/55-60, 17 cm
Subgrade
Anti-fatigue course AC AF 16 PMB 45/80-80, 6cm
Mechanically stabilized granular base course, 20cm
Antifrost / drainage layer, 37 cm
E2 180 MPa - 26 cm
E2 50 MPa
E2 120 MPa
CROSS SECTION OF ASPHALT PAVEMENT FOR SECTION
“TRASA NOWOHUCKA”, 2017
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Wearing course SMA 8 Rubber Asphalt Binder, 3cm
Binder course AC WMS 16 PMB 25/55-60, 12 cm
Subgrade
Anti-fatigue course AC AF 16 PMB 45/80-80, 7cm
CTB C3/4, 22cm
Mechanically stabilized granular base course, 15cm
Drainage layer, 15cm
E2 180 MPa - 22 cm
E2 120 MPa
CROSS SECTION OF ASPHALT PAVEMENT FOR
USTRONIE MORSKIE – KOSZALIN
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EVOLUTION TOWARDS THE FUTURE