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Emulsions in Europe: advantages, uses and standardization

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Title: Emulsions in Europe: advantages, uses and standardization


1
Emulsions in Europe advantages, uses and
standardization
  • ISSA 45th Annual Convention - February 2007
  • Christine Deneuvillers Colas France

2
Emulsions in Europe the keys
  • Introduction
  • Key figures
  • Key advantages less energy and less greenhouse
    gas (example of life cycle analysis)
  • Key points in European standardization
  • Key uses and standards
  • Key ideas to take home

3
Why trust emulsions?
  • Emulsion a safe, sure solution
  • history old technique that has been constantly
    upgraded
  • Wide range of major techniques available
  • Very flexible to use on many different types of
    base supports
  • Controlled industry (8 million tons worldwide)

4
Key figures Source IBEF study 2005
Worldwide production nearly 8 million tons
5
Breakdown of applications Source IBEF study
2005
  • Data on 2,236,359 tons (basis for calculations)
    out of 8 million tons consumed in 2005
  • Spraying 1,686,029 tons, i.e., 75 
  • Surface dressings 41
  • Tack coats 45
  • Prime coats 14
  • Coating 550,330 tons, i.e., 25
  • Cold micro asphalt 43
  • Cold mix 42
  • Recycling 15

6
Key advantages environmental protection
  • 2 main environmental impacts
  • Energy savings
  • Aggregates not heated
  • Emulsions are stored without re-heating
  • Recycled in place
  • Less transport of materials
  • Reduction of greenhouse gas

7
Examples of Life Cycle AnalysisSource Road of
the Future Michel Chappat, Julian Bilal
  • EPCV (partial evaluation of life cycle) with 2
    criteria GHG/ Energy
  • pavement (comparison of different types of
    roadways)
  • Recycling in place (comparison of different types
    of products)

8

Partial assessment of roadway impact GHG and
energy
Steps and hypothesis for life cycle analysis in
road building
9
Partial assessment of roadway impact GHG and
energy
10
Partial assessment of roadway impact GHG and
energy
11
Partial assessment of products cold recycling
Consumption of energy in Mj/m²
12
Partial assessment of products cold recycling
Greenhouse gas emission in kg/m² of pavement
13
Asphalt emulsion overview of European
standardization
  • Reference documents
  • New terms
  • Classification and technical requirements
  • FPC
  • CE marking

14
Standardisation reference documents
  • asphalt and asphalt binders- factory production
    control for asphalt and fluxed, fludified asphalt
    prEN14733, 2004
  • define tests and frequency of controls for CE
    marking (2009)
  • Specification guide for cationic asphalt emulsion
    EN 13808, September 2005 and for fluidified,
    fluxed asphalt (pr NF EN 15322)
  • define additional tests to FPC and terminology
    for binders
  • not applicable to date, awaiting national annexes
    (informative specifications guide per type of
    application)
  • expected date in the course of 2007

15
New denomination for asphalt emulsion
C 69 B 2 Cationic, binder content 69 man. With
road asphalt, class 2 breaking index
C 60 BPF 6 Cationic, binder content 60 man. With
road asphalt fluxed polymer additives at 2
comp. to emulsion, class 6 breaking index
16
New denomination for fluxed asphalt
Fm 5 B 6 Medium viscosity fluidified asphalt,
man. with road asphalt and diluting agent with
relatively petroleum hydrocarbures at 60
distilled at 225C
Fv 8 BP 3 Polymer modified asphalt, fluidified
or fluxed, with high viscosity, containing
vegetable origine flux with low volatility and
residual binder with softening point over 50C
17
Classification of emulsions
  • Framework for specifications for emulsions and
    fluxed asphalt
  • As is
  • Recuperated (freshly laid, for emulsion)
  • Stabilized
  • Aged
  • For each state, list of technical requirements
    and possible categories

18
Example of performance category of C65BP3 emulsion
19
Example of performance categories for recuperated
binder from C65BP3 emulsion
20
Factory Production Control NF EN 14733
September 2005
  • Requirements relating to Factory Production
    Control (FPC), for the use of producers of
    asphalt emulsion and fluidified or fluxed binders
  • Guarantee that production complies with initial
    declaration
  • Requirement for CE marking

21
Description of FPC NF EN 14733 September 2005
  • Equipment (calibration) and production process
  • Requirements in terms of calibration in plants
    (type of control and frequency)
  • Ingredients
  • Type de control and methods to be defined,
    frequency imposed
  • Finished products
  • Type de control and methods to be defined,
    frequency imposed

22
CE marking
  • CE marking makes it possible to know
  • System of certification of compliance
  • Performance level
  • Evaluation procedure
  • manufacturer ? FPC, initial tests and samples
  • Recognized organization ? certifies FPC
  • When compliance ruled, a certificate is awarded ?
    manufacturer can use CE marking
  • CE marking ? beginning of 2009

23
Key uses and standards
  • Surface dressings 31
  • Tack coats 34 and prime coats 10
  • Microsurfacings 11
  • Cold mixes 10
  • Road rehabilitation 4
  • spraying emulsions 75
  • mixing emulsions 25

24
Why surface dressings (31)?
  • Restoring surface characteristics
  • skid resistance
  • Waterproofing
  • Best quality/cost ratio
  • For small scale applications as well as large
    surfaces

25
Different types of SD
26
Innovations - Emulsions for surface dressing
  • Possibility to control break of emulsions
  • Polymer based asphalt emulsions
  • Excellent adhesiveness, use of vegetal fluxes

27
Surface dressing - Specifications
  • Specifications for surface dressing performance
  • TAIT (Type approval installation trial),
    skid-resistance durability, approved by company
  • FPC control plan, approved by proper
    organisation
  • CE marking mandate, given by company (2009?)

28
Current situation of surface dressing tests
29
Tack coats and seal coats (44)
  • Emulsion for prime coats and binder coats
  • Make an impervious membrane to prevent water
    entry as well as water loss (evaporation)
  • Replace flammable products flammables

30
Tack coats
  • Long lasting structure
  • Development of very thin hot mix surfacing
  • New trends tack coat that can be circulated
    immediately

31
Microsurfacing (11)
  • Improve or restore road surface quality
  • Good surface characteristics (skid resistance)
    and good impermeability
  • Durable maintenance technique
  • Easy and rapid
  • No loose chipping
  • Comfortable for drivers and frontage residents
    (by reducing noise)
  • Constantly improving

32
Current situation in cold micro asphalt
standarization
  • Performance-based specifications for cold micro
    asphalt
  • TAIT (Type approval installation trial),
    skid-resistance durability, approved by company
  • FPC control plan, approved by proper
    organisation
  • CE marking mandate, given by company (2009?)

33
Current situation of cold micro surfacing tests
34
Tests on cold micro asphaltinternal methods
ISSA TB EN standards
  • Tests before application
  • WTAT (TB100) EN 12274-5
  • LWT (TB109)
  • Simulation of application
  • Handling capacity (internal method)
  • Mixing time (TB113)
  • Consistency (TB 106 for slurry) EN 12274-3
  • Simulation of in situ behavior
  • TCS (internal method)
  • HCT (internal method)
  • Wet cohesion (TB 139) EN 12274-4

35
Cold mixes (10) main applications
  • Storable/non-storable mixes
  • Classification
  • Emulsion-based open-graded mixes
  • Emulsion-based semi-dense mixes
  • Emulsion-based closed-graded mixes
  • Grave emulsions

36
Grave-emulsion - standardizationNF 98-121
February 2005
Type R reprofiling or patching Type S for
road base courses in new construction or
reinforcement work
37
Grave-emulsion - standardization NF 98-121
February 2005
38
Cold in place recycling
  • Starting point Knowledge of cold mixes
  • Interest of recycling
  • Aggregates and asphalt savings by reusing
    materials,
  • Structural improvement
  • Profile improvement

39
Key ideas to take home
  • Environmentally friendly (reduction of
    transportation, lower energy consumption)
  • Longer working season
  • Adaptable material for large range of major cold
    techniques
  • Right product in the right place at the right time
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