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CANADIAN USER PRODUCER GROUP FOR ASPHALT. SASKATOON. NOVEMBER 2008. LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATION FROM BOTTOM TO TOP. CASE STUDY APPROACH – HENAN RUXIN NEW EXPRESSWAY PROJECT DA’AN TO JILIAO, RUYANG COUNTY, HENAN PROVINCE, CHINA. JESSICA HERNANDEZ - PowerPoint PPT Presentation
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CANADIAN USER PRODUCER GROUP FOR ASPHALT
LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATION
FROM BOTTOM TO TOP
JESSICA HERNANDEZSENIOR PAVEMENT ENGINEER
THE ASSISTANCE OF PEIJIN GUO, DEPT OF CIVIL ENGINEERING, McMASTER UNIVERSITY, AND ALAIN DUCLOS, SETH ZHANG AND DOUGLAS LIU OF JEGEL IS GREATLY APPRECIATED
THE NSERC SUPPORT OF THE McMASTER/JEGEL DEVELOPMENT OF TESTING TECHNOLOGY FOR FLEXIBLE PAVEMENT MATERIALS IS GRATEFULLY ACKNOWLEDGED
SASKATOON NOVEMBER 2008
ADJUNCT PROFESSOR McMASTER UNIVERSITY
JOHN EMERY GEOTECHNICAL ENGINEERING LIMITED, TORONTO
www.jegel.comJEGEL
PARTNERS IN QUALITYISO 9001
LONG LIFE PAVEMENT IN POMPEII – NOTE THE WHEEL TRACK RUTTING
JOHN EMERYPRESIDENT AND PRINCIPAL ENGINEER
CASE STUDY APPROACH – HENAN RUXIN NEW EXPRESSWAY PROJECT
DA’AN TO JILIAO, RUYANG COUNTY, HENAN PROVINCE, CHINA
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
LONG-LIFE ASPHALT PAVEMENTS
NEW FLEXIBLE PAVEMENT DESIGN CONCEPTSMECHANISTIC-EMPIRICAL DESIGN
ADVANCES IN HMA MATERIALS AND CONSTRUCTION METHODS
INTEGRATED CLIMATIC MODELMax/Min TemperaturePrecipitationFreeze/Thaw
TRAFFIC LOADINGSCommercial Vehicles
MATERIAL PROPERTIESHMABase/SubbaseSubgrade
ANALYSISPAVEMENTSTRUCTURE
DISTRESS PREDICTION
LCCA?VE?
DESIGN
OK
/
NOT OK
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
LIMIT BENDING TO < 70 µ (MONISMITH, VON QUINTUS, NUNN, THOMPSON)
LIMIT VERTICAL COMPRESSION TO < 200 µ (MONISMITH, NUNN)
RESURFACING CAN BE RECYCLED HOT-MIX ASPHALT (HMA) OR HOT IN-PLACE RECYCLED
REPEATED DEFORMATION CAN LEAD TO RUTTING
REPEATED BENDING CAN LEAD TO FATIGUE
CONCEPT OF PERPETUAL (LONG-LIFE) FLEXIBLE (ASPHALT) PAVEMENTS
40 TO 75 mm SMA, OFC OR SUPERPAVE HMA
MAXIMUM COMPRESSIVE STRAIN
SUBGRADE
GRANULAR BASE AND SUBBASE
MAXIMUM TENSILE STRAIN FATIGUE RESISTANT HMA(75 mm to 100 mm)
HIGH MODULUS RUT RESISTANT HMA (THICKNESS FROM PAVEMENT DESIGN)
ZONE OF HIGHEST
COMPRESSION
100 mmto
150 mm
ADAPTED FROM ASPHALT PAVEMENT ALLIANCE
LONG-LIFE FLEXIBLE PAVEMENTS TECHNOLOGY
LONG-LIFE FLEXIBLE PAVEMENT DESIGN CONCEPTSCHEMATIC OF A LONG-LIFE FLEXIBLE (ASPHALT) PAVEMENT SHOWING THE RENEWABLE SMA,
OFC, OR SUPERPAVE HMA/RHM SURFACE COURSE
TDC RESISTANCE
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
MATERIALS CHARACTERIZATIONRESILIENT MODULUS, Mr
SUBGRADE, SELECT SUBGRADE MATERIAL, GRANULAR SUBBASE, GRANULAR BASE
• Mr = STRESS/RECOVERABLE STRAIN
• ADJUSTMENT OF SUBGRADE Mr IS TYPICALLY REQUIRED FOR SEASONAL VARIATIONS
• FOR COHESIVE SUBGRADE MATERIALS WITH A SOAKED CBR 10 THE Mr IS
OFTEN ASSUMED TO BE Mr 10 x CBR IN MPa (FROM SOIL MECHANICS)
(AASHTO, 1993)
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
RESILIENT MODULUS, Mr
SUBGRADE, SELECT SUBGRADE MATERIAL, GRANULAR SUBBASE, GRANULAR BASE
1 – LOAD FRAME2 – LOAD CELL3 – LVDT4 – TRIAXIAL CELL5 – SPLIT MOULD6 – COMPACTION DEVICE
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
RESILIENT MODULUS, Mr
SUBGRADE, SELECT SUBGRADE MATERIAL, GRANULAR SUBBASE, GRANULAR BASE
• FOR MOST GRANULAR BASE/SUBBASE MATERIALS, THE BULK STRESS IS THE PRIME FACTOR AFFECTING Mr
• THE DEVIATORIC STRESS MAY CAUSE A INCREASE OR A DECRASE OF Mr DEPENDING ON MATERIAL PROPERTIES
• AN INCREASE IN MOISTURE CONTENT TENDS TO DECREASE Mr
• FOR GRANULAR MATERIALS, SMALL VARIATIONS IN MOISTURE CONTENT ABOUT THE OPTIMUM DURING COMPACTION DO NOT HAVE A PROFOUND INFLUENCE ON Mr
• Mr VARIES WITH PHYSICAL PROPERTIES SUCH AS PARTICLE SHAPE, PARTICLE ROUGHNESS, GRADATION, AND FINES CONTENT
• THE USE OF A LINEAR REGRESSION BETWEEN RESILIENT MODULUS AND PRESSURE PROVIDES A REASONABLE APPROXIMATION FOR DESIGN PURPOSES.
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
00.0001 0.001 0.01 0.1
εt
εt
CLAYEY SUBGRADE(PI = 25%)
SANDY SUBGRADE
VALUES DETERMINED AT
200 CYCLES AT EACH Δa
NOTES:
1. C = CONSTANT
2. RELATIVE VERTICAL POSITION OF CURVES STRONGLY DEPENDS ON MOISTURE CONTENT OF SUBGRADES.
RESILIENT STRAIN, εr (%)
RE
SIL
IEN
T M
OD
UL
US
, M
R
TYPICAL VARIATIONS IN RESILIENT MODULUS WITH RESILIENT STRAIN FOR A DRY SANDY SUBGRADE AND A MEDIUM-PLASTICITY CLAYEY SUBGRADE
AGGREGATE VIEWS, FALL 1994
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
Variation of Moduli with Deviator Stresses
0
100
200
300
400
0 50 100 150 200 250 300
Deviator Stress (kPa)
Res
ilien
t M
odul
us (
MP
a)
3 psi5 psi10 psi15 psi20 psiSample 103, w0 = 6.5%
Ru River Sand
Variation of Moduli with Bulk Stresses
Mr = 10.395q0.5394
0
100
200
300
400
0 200 400 600 800
Bulk stress (kPa)
Res
ilien
t M
odul
us (
MP
a)
3 psi
5 psi
10 psi
15 psi
20 psi
Series6
Power(Series6)
Sample 103, w0 = 6.5%
Ru River Sand
SUMMARY OF RU RIVER SAND RESILIENT MODULUS TESTINGSELECT SUBGRADE MATERIAL
(a) Variation of Moduli with bulk Stresses
Mr = 9.5882q0.6204
0
200
400
600
0 200 400 600 800
Bulk Stress (kPa)
Res
ilien
t M
odul
us (
MP
a)
3 psi
5 psi
10 psi
15 psi
20 psi
Series6
Series7
Power(Series6)
Sample 105Yunmeng Hill, Ruyang
(b) Variation of Moduli with Deviator Stresses
0
200
400
600
0 50 100 150 200 250 300
Deviator Stress (kPa)
Res
ilien
t Mod
ulus
(M
Pa)
3 psi
5 psi
10 psi
15 psi
20 psi
SUMMARY OF YUNMENG HILL AGGREGATES Mr TESTING
GRANULAR BASE/SUBBASE
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CBR TEST RESULTS OF PROJECT GRANULAR MATERIALS
GRANULAR MATERIAL UNSOAKED SOAKED NOTES
LM 1 148 128 NO TUNNEL ROCK
LM 3 166 148 NO TUNNEL ROCK
LM 3T 99 -BLENDING WITH CRUSHED TUNNEL ROCK
LM 4 194 175 NO TUNNEL ROCK
LM 4T 124 115 BLENDING WITH CRUSHED TUNNEL ROCK
Tunnel Material
Tunnel Material, Adjusted
A
800
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
HIGH QUALITY 37 mm HMA AGGREGATE
AGGREGATE PROPERTIES ARE IMPORTANT TO SUPERPAVE
CONSENSUS AGGREGATE PROPERTIES
• COARSE AGGREGATE ANGULARITY
• FINE AGGREGATE ANGULARITY
• FLAT OR ELONGATED PARTICLES
• CLAY CONTENT
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
• DYNAMIC SHEAR RHEOMETER (DSR)
• ROTATIONAL VISCOMETER (RV)
• ROLLING THIN FILM OVEN (RTFO)
• PRESSURE AGING VESSEL (PAV)
• BENDING BEAM RHEOMETER (BBR)
• DIRECT TENSION TESTER (DTT)
PGAB SELECTION IS IMPORTANT TO SUPERPAVE
JEGEL
CONVENTIONAL (LEFT) AND SBS MODIFIED (RIGHT) ASPHALT BINDERS
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CHARACTERIZATION OF HOT-MIX ASPHALT ANDPERFORMANCE TESTING OF HOT-MIX ASPHALT
ASPHALT PAVEMENT ANALYZER AND NOTTINGHAM ASPHALT TESTER
APA
DESIGNLABORATORY
PROOFTESTER
ASPHALTPLANT
PLACEMENT
LINK BETWEEN LABORATORY TESTINGAND FIELD PERFORMANCE
NATRESILIENT MODULUS
PERMANENT DEFORMATIONFATIGUE
JEGEL JEGEL
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
PLOTS OF DEFORMATION WITH NUMBER OF CYCLES IN THE ASPHALT PAVEMENT ANALYZER (SAMPLES AT 7% AIR VOIDS) Rutting Resistance Test Using Asphalt Pavement Analyzer
HMA Briquettes @ 7% Air Voids
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
0 1000 2000 3000 4000 5000 6000 7000 8000
Number of Strokes
Def
orm
atio
n (
mm
)
AC-13/SP 12.5 SBS 1-D @58°C
AC-13/SP 12.5 SBS 1-D @58°C (UW)
AC-20/SP 19 SBS 1-D @58°C
AC-20/SP 19 SBS 1-D @58°C (UW)
AC-25/SP 25 70A @58°C
AC-25/SP 25 70A @58°C (UW)
AC-13/SP 12.5 SBS 1-D @64°C
AC-20/SP 19 SBS 1-D @64°C
AC-25/SP 25 70A @64°C
AC-13/SP 12.5 SBS 1-D @70°C
AC-20/SP 19 SBS 1-D @70°C
AC-25/SP 25 70A @70°C
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
RESILIENT MODULUS OF ASPHALT CONCRETES TESTED IN THE NOTTINGHAM ASPHALT TESTER (NAT) RESILIENT MODULUS TEST RESULTS
Da'an to Jiliao Section of Erlianhaote to Guangzhou Expressway
100
1000
10000
100000
15 20 25 30 35 40 45 50 55 60 65
Temperature (ºC)
Sti
ffne
ss M
odul
us (
MP
a)
AC-13/SP12.5, Basalt Aggregates/SBS1-D/Hydrated LimeAir Voids=7.0%, AC Content=5.5%, Diameter=150mm, Xixin
AC-13/SP12.5 , Basalt Aggregates/SBS1-D/Hydrated LimeAir Voids=4.0%, AC Content=5.5% , Diameter=150mm, Xixin
AC-20/SP19, Limestone Aggregates/SBS1-DAir Voids=7.0%, AC Content=4.0%, Diameter=150mm,Yunmeng Hill
AC-20/SP19 , Limestone Aggregates/SBS1-DAir Voids=4.0%, AC Content=4.0%, Diameter=150mm,Yunmeng Hill
AC-25/SP25 , Limestone Aggregates/70AAir Voids=7.0%, AC Content=3.8%, Diameter=150mm,Yunmeng Hill
AC-25/SP25 , Limestone Aggregates/70AAir Voids=4.0%, AC Content=3.8%, Diameter=150mm,Yunmeng Hill
AC-25/SP25 , Limestone Aggregates/70AAir Voids=7.0%, AC Content=4.0%, Diameter=150mm,Yunmeng Hill
AC-25/SP25, Limestone Aggregate/70AAir Voids=4.0%, AC Content=4.0%, Diameter=150mm,Yunmeng Hill
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
10
100
1000
10000
10 100 1000 10000 100000 1000000 10000000
Number of Cycles to Failure
Init
ial
ten
sile
Str
ain
(m
icro
stra
in)
Project Mixes AC-25/SP25, AV = 7.0%, AC = 4.0% AC-25/SP25, AV = 5.0%, AC = 4.3% Typical Mixes S19 SBS S 25 S 37.5 30/14 HRA SBS 30/14 HRA 20 mm DBM 28 mm DBM 50
JEGEL Superpave for Bogotá
Typical British (UK) Mixes
FATIGUE ENDURANCE TESTING IN THE NOTTINGHAM ASPHALT TESTER (NAT)
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
ASPHALT CONCRETE RESILIENT MODULUS WITH DEPTH WITH HYDRATED LIME TREATMENT OF SURFACE
Layer Season 1 2 3 4 5
< 25ºC 25º C to 35ºC 35º C to 40ºC 40º C to 45ºC > 45ºC
19.0 28.0 34.5 38.5 40.0
Depth MPa psi MPa psi MPa psi MPa psi MPa psi
AC-13/SP12.5SBS1-D
2 cm 9,190 1,332,896 4,260 617,861 2,440 353,892 1,740 252,366 1,530 221,908
AC-20/SP19SBS1-D
7 cm 9,340 1,354,652 7,280 1,055,874 3,910 567,097 3,310 480,075 2,690 390,151
AC-25/SP2570A
15 cm 12,040 1,746,254 9,530 1,382,209 3,980 577,250 2,490 361,144 2,090 303,129
AC-25/SP2570A
25 cm 10,630 1,541,751 10,630 1,541,751 4,450 645,418 2,800 406,106 2,090 303,129
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
HENAN RUXIN NEW EXPRESSWAY PROJECT
JEGEL2007
NOTE – A HYDRATED LIME SURFACE TREATMENT IS MOST EFFECTIVE WHEN PROPERLY APPLIED TO AN ASPHALT CONCRETE SURFACE INCORPORATING POLYMER MODIFIED ASPHALT BINDER AND WITH GOOD MACROTEXTURE.
USE OF THIS TECHNOLOGY IS SUBJECT TO A FULL TECHNICAL EVALUATION FOR SPECIFIC PROJECT APPLICABILITY.
RECOMMENDED LONG-LIFE FLEXIBLE (ASPHALT) PAVEMENT STRUCTURES
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
Structural LayersUpperHMA
Course
MiddleHMA
Course
LowerHMA
CourseBase Subbase
SelectSubgradeMaterials
GOOD ≤ 20 ≤ 24 ≤ 28 ≤ 72 ≤ 83 ≤ 126
FAIR 21-22 25-26 29-31 73-79 84-91 127-139
POOR ≥ 23 ≥ 27 ≥ 32 ≥ 80 ≥ 92 ≥ 140
Design Deflection with Standard Loading
(0.01mm)Chinese Equation: 28.4 Asphalt Institute Figure: 28.0
Design Deflection with Overloading (0.01mm)
Chinese Equation: 20.5 Asphalt Institute Figure: 20.0
RECOMMENDED DEFLECTION LEVELS (0.01 mm) BASED ON FWD TESTINGFOR PAVEMENT CONSTRUCTION QUALITY CONTROL MONITORING
EMBANKMENT CUT AND FILL SECTIONS
1. THE FALLING WEIGHT DEFLECTOMETER (FWD) WITH 50 kN LOADING IS USED TO CHECK THE DEFLECTION ON TOP OF EACH STRUCTURAL LAYER.
2. DEFLECITON DATA OBTAINED BY BENKELMAN BEAN CAN BE CONVERTED INTO THE FWD DEFLECTION DATA USING THE FOLLOWING EQUATION: FWD DEFLECTION = BENKELMAN DEFLECTION/1.5
3. THESE ARE VERY STRICT ACCEPTANCE LEVELS.
AC
CE
PT
AB
LE
NO
T
AC
CE
PT
AB
LE
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
OVERVIEW OF PROJECT CONSTRUCTION AND QUALITY MONITORING
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD
CUPGA NOVEMBER 2008LONG-LIFE FLEXIBLE PAVEMENT MATERIALS CHARACTERIZATIONLABORATORY AND FIELD