we’re known for our strength...03.06.2017 unternehmenspräsentation 1 03.06.2017 huesker hatelit...
TRANSCRIPT
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03.06.2017 1Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
WE’RE KNOWN FOR OUR STRENGTH
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03.06.2017 2Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Working with our Partners…
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03.06.2017 3Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
HaTelit High Strength Geosynthetic Paving Interlayers
for Asphalt Reinforcement
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03.06.2017 4Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Managing Expectations-Value Proposition
We Want to Extend Pavement Performance by Delivering a Solution to...– Retard Reflective Cracking– Limit Water Intrusion– Increase Asphalt Strength – Improve Ride Quality– Maintain Base Structure Integrity– Safety– Provide Cost Effective Solutions
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03.06.2017 6Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Why Consider HaTelit??
• Bituminous coated strong bond with asphalt
• High Retained Strength
• Eliminate (reduce) Milling
• Millable -Recyclable
An asphalt reinforcement grid with the following properties:
• Exceptional dynamic load qualities
• Unique High Tensile Modulus Polyester
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03.06.2017 7Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
HaTelit ® C 40/17
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Optimum retardation of reflective cracking (40-year track record)
Very high resistance to installation damage-retained strength
High resistance to long-term dynamic traffic loads
No loss of strength due to moisture &time
Creates a moisture barrier
Property HaTelit®
C
Elongation at break < 10%
Tensile Strength 50 kN/m
Bitumen (% residual) > 60%
Tensile strength after installationdamage test (DIN EN ISO 10722)) > 90%
Ratio of strength of damagedspecimen to nominal strength ofreinforcement grid
> 80%
Raw material Polyester
Cuttable Yes
Roll length 150 m
Roll width Up to 5 m
Mesh size 4 cm
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03.06.2017 8Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Why Polyester???Coefficient of thermal expansion ofAsphalt and Polyester are compatible in combination...
HaTelit C 40/17
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03.06.2017 9Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
α-Concrete: ~1.0 × 10-5
α-Steel: ~1.3 × 10-5
α-Asphalt: ~6.0 × 10-4α-Polyester: ~8.0 × 10-5
α-Asphalt: ~6.0 × 10-4α-Fiberglass: ~4.5 × 10-6
Ratio: ~ 1 / 1
Ratio: ~ 1 / 7
Ratio: ~ 1 / 133
Ratio of the coefficient of thermal expansion α [1/K]:
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03.06.2017 10Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Recognizing Pavement Distresses-Determinant for Product Application Selection
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03.06.2017 11Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Caution! Not all conditions appropriate!Typical Pavement and Base Failures
Base Failures
Extreme Fatigue Cracking
Slab FractureExtreme Fatigue Cracking
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03.06.2017 12Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Rutting-Mix Design Problems
Typical Binder Issues
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03.06.2017 13Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Fatigue “Alligator” Cracking
Fatigue Cracking
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03.06.2017 14Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Pavement Deterioration Curve
Pavement Age (Time In Years)
Excellent
Good
Fair
Poor
The HUESKERInterlayer
Advantage
FailedPavement
Pave
men
t Con
ditio
nExtend Years of Good Life (Yr Y – Yr X):Delay Structural Rehab
Time For New OverlayPossibly Recycle
Original Pavement HMA Overlay w/ Interlayer
HMA Overlay Only
Yr X Yr Y
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03.06.2017 15Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Interlayer Installation: How it Works
Original Pavement
Hot AC Tack Coat
Provides Bonding & Moisture Barrier
Interlayer Installation
Bitumen Saturation into Fabric• Delays Reflective Cracking
• Reinforces Overlay• Limits Moisture Intrusion
NEW EXTENDED LIFE ASPHALT
SURFACE
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03.06.2017 16Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Reasons for reflective cracking
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Dynamic loading effects
Shear action + Bending action Shear action -
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03.06.2017 17Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Reasons for reflective cracking
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Temperature change
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03.06.2017 18Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Reflective cracking
Crack growth Stresses into the new asphalt layerDue to high tension at crack tip
Source 1: Montestruque G. E., 2002, Contribuição para a Ela-boração de Método de Projeto de Restauração de Pavimentos Asfálticos Utilizando Geossintéticos em Sistemas Anti-Reflexão de Trincas (Contribution to the preparation of a method of a project for rehabilitation of asphaltic pavements using geosynthetics on anti-reflective crack systems). Doctor’s Thesis, Technological Institute of Aeronautics, São José dos Campos, Brazil.
“0” Tensile Strength inHOT MIX ASPHALT
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03.06.2017 19Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Functional Aspect of Reinforcement Grids
Significantly reduced growth of reflective cracks, as the reinforcement grid absorbs and distributes the strain.
Source 1: Montestruque G. E., 2002, Contribuição para a Ela-boração de Método de Projeto de Restauração de Pavimentos Asfálticos Utilizando Geossintéticos em Sistemas Anti-Reflexão de Trincas (Contribution to the preparation of a method of a project for rehabilitation of asphaltic pavements using geosynthetics on anti-reflective crack systems). Doctor’s Thesis, Technological Institute of Aeronautics, São José dos Campos, Brazil.
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03.06.2017 20Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
AERONAUTICS TECHNOLOGICAL INSTITUTE
Testing Done to Determine the Effect of HaTelit® in Anti Reflective
Cracking Applications in Asphalt overlays
Dynamic Fatigue
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03.06.2017 21Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Set-up (2000):
Material: HaTelit ®
C 40/17 Precrack: 3 mm, 6 mm, 9 mmHaTelit
®-position: 2mm above the crack
tipLoad position: Bending and shear modeContact pressure: 330 kN/m², 420 kN/m²
560 kN/m² (max. value)
(1) Overlay(2) Blocks with opening(3) Elastic base (rubber)
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03.06.2017 22Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
N=79,884
Typical crackWithout reinforcement)
Bending Mode
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03.06.2017 23Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Typical crack(with HaTelit®)
N=503,832
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03.06.2017 24Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Bending Mode
Bending mode(without HaTelit®)
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03.06.2017 25Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Bending mode(with HaTelit®)
Bending Mode
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03.06.2017 26Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Finite Element Modeling
Without HaTelit
With HaTelit
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03.06.2017 27Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Improvement FactorVf = Nf (with Hatelit ®) / Nf (without Hatelit ®)
1
1
ff c
N =
( ) ( )CfFff NN
c 211 +=
4.60 < Vf < 6.14
(B) (S)
Nf = Number of cycles cf = Fatigue life of the beam Nf(B) = Fatigue life of beam with the load in the bend modeNf(S) = Fatigue life in the shear mode
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03.06.2017 28Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Demand Performance: Bond Strength
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A proper bond strength results from...
Interlock
Adhesion
Friction
…Allows the interlayer to perform…
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03.06.2017 29Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Demand: Bond Strength
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Material reinforcement achieved by proper bond strength by....
Interlock
Adhesion
Friction
Grid Aperture Size
Bituminous coating
Mesh size and coating
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03.06.2017 30Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Reduce Milling Thickness-Save $$$$
HUESKER Interlayers can eliminate the need for a leveling course…saving time & $$$
HaTelit® C 40/17 Leveling Course
Fiberglass Grid
Milling Depth
Competitive Glass Grids –Leveling Req.
HaTelit Flexible-Conforming
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03.06.2017 31Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
“Best Practice”-Material Installation
Surface PreparationEnsure surface is clean, dry, and free of any loose material. Fill all surface cracks larger than 1/8 inch with a sealant.
Tack CoatPG grade asphalt tack applied at 0.10 gal/yd2 uniformly OR Emulsified asphalts evenly applied at 0.13-0.18 gal/yd2 and allowed to break before installing the grid.
InstallationMaterials should be installed with a laydown machine with a pipe inserted through the core. Care should be taken to prevent creases or folds in the grid.
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2
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03.06.2017 32Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Surface PreparationAfter milling existing asphalt surface, ensure milled surface is clean, dry and free of any loose material. Fill all surface cracks larger than 1/8 inches with a sealant.
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03.06.2017 33Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Cleaned Surface
Surface Preparation
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03.06.2017 34Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Surface Preparation
Crack Filling Best Practice
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03.06.2017 35Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
….Be Prudent…Really?
…contractor must have been paid by lf
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03.06.2017 36Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Cleaning / Sweeping
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03.06.2017 37Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
PG 64-22(AC-20) applied at 0.10-0.12 gal/yd2 uniformly on cleaned milled surface. NO streaking is key to ensure bonding…full coverage
“Tacking” the Pavement
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03.06.2017 38Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Changes from Brown to Black
Emulsion evenly applied at 0.13 to 0.18 gal/yd2 (70 % residual bituminous) and allowed to “break” before installing the grid.
Brown
Black
Tack-Emulsified Asphalt
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03.06.2017 39Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Delamination and Slippage-Lack of Tack and Asphalt Thickness….
Lack of Tack and ThicknessCan Cause Issues in Surface
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03.06.2017 40Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
The material should be installed using a laydown machine…a steel pipe in the core, ensuring no folds / creases are present eliminating catenary effect (bending / bowing)
Installation
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03.06.2017 41Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Installation
Edge Milled surface
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03.06.2017 42Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Broom Pressure Ensures No Wrinkles and Contact Bond
Material Installation
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03.06.2017 43Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Proper Overlay Thickness
Good Bond …
Material Saturation…
Final Paving
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03.06.2017 44Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
Connect With Us
facebook.com/hueskernorthamerica
twitter.com/HUESKERna
linkedin.com/company/huesker-north-america
www.HUESKER.com
#HUESKER25
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03.06.2017 45Unternehmenspräsentation
03.06.2017 HUESKER HaTelit Presentation
...Contact Information
HUESKER, Inc.Michael SamueloffHaTelit® Product Market Manager, NA
Tel: (704) 724-1091 cellE-Mail: [email protected]: www.huesker.com
mailto:[email protected]://www.huesker.com/
Slide Number 1Slide Number 2HaTelit High Strength �Geosynthetic Paving Interlayers�for Asphalt Reinforcement Managing Expectations-Value PropositionWhy Consider HaTelit?? HaTelit ® C 40/17 Slide Number 8Slide Number 9Recognizing Pavement Distresses-�Determinant for Product Application SelectionCaution! Not all conditions appropriate!Rutting-Mix Design ProblemsFatigue “Alligator” Cracking Slide Number 14Interlayer Installation: How it WorksReasons for reflective crackingReasons for reflective crackingSlide Number 18Slide Number 19Slide Number 20Set-up (2000):Slide Number 22Slide Number 23Slide Number 24Slide Number 25Finite Element Modeling Improvement FactorDemand Performance: Bond StrengthDemand: Bond StrengthReduce Milling Thickness-Save $$$$“Best Practice”-Material InstallationSlide Number 32Slide Number 33Slide Number 34….Be Prudent…Really?Cleaning / SweepingSlide Number 37Slide Number 38Delamination and Slippage-Lack of Tack and Asphalt Thickness….Slide Number 40Slide Number 41Slide Number 42Slide Number 43Connect With UsSlide Number 45