crack sealant for neppm.ppt [read-only] · pdf fileblends of bitumen and ... sealant property...
TRANSCRIPT
![Page 1: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/1.jpg)
Performance Guidelines for Selection of Hot-Poured
Bituminous Crack SealantNortheast Pavement Preservation Meeting Warwick, Rhode Island, 2007
Advanced Transportation Research and Engineering LaboratoryUniversity of Illinois at Urbana-Champaign Imad L. Al-QadiJ-F MassonS-H Sam YangEli Fini
![Page 2: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/2.jpg)
Blends of bitumen andstyrene-butadiene copolymer (SB, SBS)recycled rubberadditives
inorganic fillerbonding agent
A
500 mμ
B
500 mμ
500 μm500 μ
H E
500 μm
A M H E
What is Crack Sealant?
![Page 3: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/3.jpg)
Crack SealingCrack sealing/ filling is the most widely used maintenance activity of in-service pavements Inexpensive, quick, and a well-proven technique to delay pavement deterioration
Reduce water penetration Maintain pavement structural capacity Improves road rideabilityExtend pavement service life (3 to 5 years)
![Page 4: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/4.jpg)
Installation related parameters (QC/QA, crack cleaning and preparation, etc.)
Sealant related parameters (viscosity, softness, bond strength, compatibility, etc.)
Field Performance of Crack Sealant
![Page 5: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/5.jpg)
Sealant Failure ModesTracking: sealant is smeared on the pavement due to passing traffic
Adhesive failure: loss of bonding between sealant material and its substrate
Cohesive failure: failure within sealant material
Intrusive failure: foreign objectives intrude into sealants
![Page 6: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/6.jpg)
Sealant Property Test Method ASTM Spec.
Application Characteristics Viscosity (binder) D4402
AdhesionBond Test
Asphalt CompatibilityD5329D5329
ExtensibilityElongation (rubber)
Ductility (binder)D412D113
Durability Track Abrasion (slurry) D3910
FlexibilityFlexibility
Cone PenetrationD5329D5329
TrackingFlow
Softening PointD5329D36
Available Specifications
![Page 7: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/7.jpg)
Objective
Development of performance-based guidelines for the selection hot-poured crack sealant
Make use of SuperPave™ binder-testing equipment
Adapting spirit of the binder Performance Grade (PG) specifications
![Page 8: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/8.jpg)
Viscosity Test (SC-2)
At Installation Temperature
![Page 9: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/9.jpg)
Test DevelopmentInstrument and Testing Optimization
Rigid rodMelting time
20minSpindle size
SC-27Speed
60rpm Waiting time
30s
Test variableTemperature 0
3
6
9
0 30 60 90Time (s)
Visc
osity
(pa.
s)BB NN QQ
0
1
2
3
4
5
130 140 150 160 170 180 190 200Temperature (C)
Vis
cosi
ty (P
a.s)
VVADAEWW
![Page 10: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/10.jpg)
Apparent Viscosity Threshold
00.5
11.5
22.5
33.5
44.5
5
BB PPWW UU EE AE AD MM VV QQ NN YY DD AB ZZ
Sealant
App
aren
t Vis
cosi
ty (P
a.s)
![Page 11: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/11.jpg)
Vacuum Oven Aging (SC-3)
Simulate Crack Sealant Weathering in Kettle & Field
![Page 12: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/12.jpg)
Test DevelopmentMicrowave agingSmall-kettle aging and pressure agingSmall-kettle aging, pressure aging and vacuum oven agingPressure aging Vacuum oven aging
![Page 13: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/13.jpg)
Test Development
Method Output
GPC Separation of bitumen and polymer
FTIR Fingerprint of composition
TGA Weight loss upon heating
DSR Stiffness, relaxation
![Page 14: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/14.jpg)
Test Procedure35g in each pan
Vacuum oven at 30″ Hg and 115°C for 16hr
Shelves spacing designed to allow uniform temperature profile
![Page 15: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/15.jpg)
Test Verification
1.E+03
1.E+04
1.E+05
1.E+06
1.E+07
-40 -30 -20 -10 0 10 20 30 40Temperature, °C
Visc
osity
, Pa.
s
virgin 1 year 9 year 16h
24h 40h 64h
![Page 16: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/16.jpg)
Dynamic Shear Rheometer Test (SC-4)
Intermediate Temperature for Tracking Resistance
![Page 17: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/17.jpg)
Test Development
Taber Abraser to simulate field failure Correlate tracking flow as measured with DSRShear stress is applied for 2s then removed to allow recovery for 18s8 levels of stresses were applied
Year 1
Year 4
Time
Stra
in
Stress = 20Pa No stress: recovery
permanentdeformation
![Page 18: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/18.jpg)
Test Parameter
Ostwald-DeWaelepower-law
γ&
10
100
1000
10000
0.0001 0.01 1Shear rate, 1/s
Stre
ss, P
a
46C52C58C64C70C76C82C
P)(C γ=σ & γ&
C: flow coefficient P: shear thinning exponent
![Page 19: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/19.jpg)
Selection Criteria
10
100
1000
10000
100000
0.4 0.5 0.6 0.7 0.8 0.9 1Shear thinning exponent (P)
Flow
coe
ffici
ent (
C)/
Pa.
s
no tracking1 sample tracks2 samples track
A
B
C
E
D
100%97%
0
0
0
![Page 20: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/20.jpg)
Bending Beam Rheometer (SC-5)
Low Temperature Flexural Properties
![Page 21: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/21.jpg)
Test DevelopmentDeflection of the sealant bean is above the limit of the current BBR device
Doubling the beam thicknessModifying BBR device to support both binder and sealant beams
0
1
2
3
4
5
6
7
0 40 80 120 160 200 240
Time
Def
lect
ion
(mm
)
0
300
600
900
Load
(mN
)
DeflectionLoad
0
0.5
1
1.5
2
2.5
3
3.5
0 40 80 120 160 200 240Time (s)
Def
lect
ion
(mm
)
0
200
400
600
800
1000
1200
Load
(mN)
DeflectionLoad
Crack Sealant Specimen
Standard Binder Specimen 6.35mm
12.7mm
![Page 22: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/22.jpg)
= 0.0966(t)0.3428
R2 = 0.9999
0.01
0.1
1
0.1 1 10 100 1000Time (sec)
Stra
in (%
)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0 100 200 300 400 500 600 700Time (s)
Def
orm
atio
n (m
m)
0
200
400
600
800
1000
1200
Load
(N)
DeformationLoad
Test ParameterStiffness @ 240s
Average creep rate
CAt)t( =ε
)t(bh4PL)t(S 3δ
=
![Page 23: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/23.jpg)
0
5
10
15
20
25
30
35
40
45
50Q
Q EE ZZ YY
AB
VV
UU
DD AE
MM
WW NN
AD PP BB
Sealant
Stiff
ness
(MPa
)
2°C -4°C -10°C -16°C -22°C -28°C -34°C -40°C
S(-10°C)=85MPa
0
0.1
0.2
0.3
0.4
0.5Q
Q EE ZZ YY AB VV UU
DD
AE
MM
WW NN
AD PP
BB
Sealant
Ave
rage
Rat
e of
Cre
ep
2°C -4°C -10°C -16°C -22°C -28°C -34°C -40°C
CSBBR Threshold
![Page 24: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/24.jpg)
CSDTT Test (SC-5)
Low Temperature Extendibility
![Page 25: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/25.jpg)
Crack movement in the field Simulates sealant extension in the fieldModification for existing testing
Extension of SuperPaveTM specimen: 33% 90+%Utilize FE tool to select appropriate specimen Dim.Select appropriate loading rate 6%/min
Test Development
0.6%0.120.6%0.26.0%1.26.0%260.0%1260.0%20
Strain Rate, mm/min
Disp. Rate, mm/min
Strain Rate, mm/min
Disp. Rate,mm/min
Type CType A and B
0.6%0.120.6%0.26.0%1.26.0%260.0%1260.0%20
Strain Rate, mm/min
Disp. Rate, mm/min
Strain Rate, mm/min
Disp. Rate,mm/min
Type CType A and B
A
B
C
N/AN/A716Masson & Lacasse, 1999N/AN/A6+90Cook et al., 1991
5x10-58x10-3N/A63Linde, 19882.5
Min Crack(%)
5x10-3
Fast Move.(mm/min)
2.77x10-418Smith & Romine, 1993
Slow Move.(mm/min)
Max Crack(%)
Studies
N/AN/A716Masson & Lacasse, 1999N/AN/A6+90Cook et al., 1991
5x10-58x10-3N/A63Linde, 19882.5
Min Crack(%)
5x10-3
Fast Move.(mm/min)
2.77x10-418Smith & Romine, 1993
Slow Move.(mm/min)
Max Crack(%)
Studies
![Page 26: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/26.jpg)
Extendibility (l)Effective gauge length (Leff=20mm)
Test Parameters
effLLΔ
=λ
The extendibility criterion is suggested based on various climatic conditions
T (°C) -4 -10 -16 -22 -28 -34 -40λ (%) 10% 25% 40% 55% 70% 85% 85+
![Page 27: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/27.jpg)
0
10
20
30
40
50
60
70
80
90
DD AE MM WW NN AD PP BBSealant
Exte
ndib
ility
(%)
-22 -28-34 -40
-10°C
-16°C Grade
-22°C Grade
-28°C Grade
-34°C Grade
-40°C Grade +
0
10
20
30
40
50
60
70
80
90
QQ EE ZZ YY AB VVSealant
Exte
ndib
ility
(%)
-4 -10
-16 -22
-10°C
-16°C
-22°C Grade
-28°C Grade
-34°C Grade
-40°C Grade +
CSDT Threshold
![Page 28: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/28.jpg)
Adhesion Test (SC-7)
For Low Temperature Bonding
![Page 29: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/29.jpg)
Surface Energy Method (Work of Adhesion)
A compatibility test for sealant producers
Direct Bond MethodA quality control test for DOT
Blister Test MethodFundamental test for advanced research
Test Development
![Page 30: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/30.jpg)
Coefficient of Thermal ExpansionSurface EnergySurface Roughness
Limestone>Sandstone>Quartzite>Granite>Steel>Aluminum
Pore SizeSandstone>Quartzite>Aluminum
Substrate Selection
MaterialCoeff. of Thermal Exp.,
cm/cm/°C x 10–6Surface Energy,
mJ/m2
Aluminum oxide 23 70Soda Lime Glass 8 72Polycarbonate 22 46Stainless Steel 9.9–17.3 57Granite 7–9 425Limestone 6 111Quartzite 11–13 200Sandstone 11–12 105Basalt 6–8 74
MaterialCoeff. of Thermal Exp.,
cm/cm/°C x 10–6Surface Energy,
mJ/m2
Aluminum oxide 23 70Soda Lime Glass 8 72Polycarbonate 22 46Stainless Steel 9.9–17.3 57Granite 7–9 425Limestone 6 111Quartzite 11–13 200Sandstone 11–12 105Basalt 6–8 74
Aluminum was conservatively selected as substrate
![Page 31: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/31.jpg)
0
20
40
60
80
100
UU BB AE PP AD WW MM
Wor
k of
Adh
esio
n (m
J/m
2 )
LimestoneQuartziteGraniteAluminum
)cos1( θγ += totalsaW
1st Level Adhesion Test: Work of Adhesion
![Page 32: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/32.jpg)
Fixture designed to be used in the DT device
Two aluminum half-cylindersDiameter: 25mmSealant thickness: 10mm
Simulates sealant installationSimulates crack expansion
Displacement rate: 0.05mm/sSpecific failure location
2nd Level Adhesion Test:Direct Bond Test (CS-7)
![Page 33: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/33.jpg)
Pmax
De-bond Energy
0
20
40
60
80
100
120
0 0.1 0.2 0.3 0.4 0.5 0.6Displacement (mm)
Load
(N)
PmaxEnergy
Test Parameter
![Page 34: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/34.jpg)
0
40
80
120
160
Non-aged Oven-aged
Kettleaged
Less than3yr
More than3yr
Ener
gy (J
/m2 )
ABPPLL
0
50
100
150
200
Non-aged Oven-aged
Kettleaged
Less than3yr
More than3yr
P max
(N)
ABPPLL
Bonding Threshold
![Page 35: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/35.jpg)
)t(d)t(PC)t(E =
3rd Level Adhesion Test: Blister Test
)()()( tE
tdtp∝)(tE
.iniIFE
.propIFE
CPdIFE .ini = )]t(IFE[AVG.IFEprop =
![Page 36: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/36.jpg)
0
100
200
300
400
2 -4 -10 -16 -22
IFE
(J/m
2 )
EEDDUUABQQ
0
200
400
600
800
1000
1200
-22 -34 -40
IFE
(J/m
2 )
ADBBPPNNLLAEMM
Test Parameter
Temperature (°C)
Temperature (°C)
IFE
ini(J
/m2 )
IFE
ini(J
/m2 )
![Page 37: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/37.jpg)
Crack SealantPerformance Grade
SG-46 SG-52 SG-58 SG-64 SG-70 SG-76 SG-82
-46-40-34-28-22-16-10-46-40-34-28-22-16-10-46-40-34-28-22-16-10-46-40-34-28-22-16-10-46-40-34-28-22-16-10-46-40-34-28-22-16-10-46-40-34-28-22-16-10
Apparent Viscosity, SC-2 Installation Temperature
Max. Viscosity (Pa.s) 3.5
Min. Viscosity (Pa.s) 1
Vacuum Oven Residue (SC-3)
Dynamic Shear, SC-4 46 52 58 64 70 76 82
Min. Flow Coefficient (kPa.s) 4
Min. Shear Thinning 0.7
Crack Sealant BBR, SC-5
-40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4
Max. Stiffness (MPa) 25
Min. Avg. Creep Rate 0.31
Crack Sealant DTT, SC-6
-40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4
Min. Extendibility (%)
>85>85>70>55>40>25>10>85>85>70>55>40>25>10>85>85>70>55>40>25>10>85>85>70>55>40>25>10>85>85>70>55>40>25>10>85>85>70>55>40>25>10>85>85>70>55>40>25>10
Crack Sealant DBT, SC-7
-40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4 -40-34-28-22-16-10 -4
Min. Load (N) 50
Min. Energy (J/m2) 40
![Page 38: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/38.jpg)
Comprehensive tests based on sealant rheological properties was developedSelection criteria is proposedA significant economic impact on the sealant industry and the pavement preservation program is expected
Outcome of the Study
![Page 39: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/39.jpg)
Future PlanLaboratory validationField validation
Monitoring test section for four yearsFine tuning thresholdsQuantify cost effectiveness of crack sealant
![Page 40: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/40.jpg)
AcknowledgementsFederal Highway Administration Pool-fund TPF5 (045) The US-Canadian Crack Sealant ConsortiumParticipating US states, Canadian provinces, airport and city agencies, and industry
![Page 41: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/41.jpg)
A continuation of this pool-fund study has been decided in the last consortium meetingVirginia will be the lead statePlease contact:
Kevin McGhee of VTRC (Email:[email protected] )Imad Al-Qadi (Email:[email protected])Eli Fini and S-H Sam Yang
![Page 42: Crack Sealant for NEPPM.ppt [Read-Only] · PDF fileBlends of bitumen and ... Sealant Property Test Method ASTM Spec. ... Microsoft PowerPoint - Crack_Sealant_for_NEPPM.ppt [Read-Only]](https://reader033.vdocument.in/reader033/viewer/2022051601/5abc19507f8b9a567c8d6c83/html5/thumbnails/42.jpg)