New European Asphalt Standards - Presentation
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Transcript of New European Asphalt Standards - Presentation
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7/30/2019 New European Asphalt Standards - Presentation
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Robert Gossling / Bob Overett September 07 - NEW ASPHALT STANDARDS 1 J AN 2008
New European Asphalt Standards
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Robert Gossling / Bob Overett September 07 - NEW ASPHALT STANDARDS 1 J AN 2008
What's happening?
From 1 J anuary 2008 specifications for asphalt will change
Out go BS4987 and BS594 product standards
And in come European standards BS EN13108 parts 1 to 8, 21 and 22
PLUS BS 594987 for transport and installation
With PD 6691, the UK guidance document
The SHW, test methods and other standards ALL change at the same time
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Robert Gossling / Bob Overett September 07 - NEW ASPHALT STANDARDS 1 J AN 2008
What does this mean for contracting/ installers/ customers?
They order a product to BS EN 13108
There is no need to be supply plant specific with the order
They install the product to BS 594987/ SHW/ Defence Estates specs/ other
specs
BS594987 becomes the reference spec for installation together with PD6691, the UK guidance document
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Robert Gossling / Bob Overett September 07 - NEW ASPHALT STANDARDS 1 J AN 2008
BS EN 13108 family of standards
BS EN 13108 - 1 asphalt concrete
BS EN 13108 - 2 asphalt concrete for very thin layers
BS EN 13108 - 3 soft asphalt (Nordic countries)
BS EN 13108 - 4 hot rol led asphalt
BS EN 13108 - 5 stone mastic asphalt
BS EN 13108 - 6 mastic asphalt
BS EN 13108 - 7 porous asphalt
BS EN 13108 - 8 reclaimed asphalt
BS EN 13108 - 20 type testing
BS EN 13108 - 21 factory production control
(Products in bold text are available from Lafarge)
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BS EN 13108 key differences
Covers only the product in the truck, not the installation
Now a target composition rather than a recipe approach
Compliance tolerances are given in FPC (EN 13108 : 21)
Binder content is adjusted for aggregate density
No corrections for binder or filler content in base/ binder courses itis target +/- the tolerance
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Robert Gossling / Bob Overett September 07 - NEW ASPHALT STANDARDS 1 J AN 2008
BS EN 13108 key differences
More rigorous product conformity
Q-Value replaced with Operating Compliance Level (OCL)
Introduces a mean deviation from target (Product Consistency)
Still tested and reported by technical
Attestation of Conformity is required by the Producer
External accreditation still required (ISO 9001:2000) for Factory
Production Control (FPC) and Sector Scheme 14.
Products require Initial Type Testing before they can go on sale
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Product approval process
Current 2007
1 Propose composition
2 Evaluate/ approve
3 Site trial(s) 929 etc
4Testing
5 Evaluation
6 Approval
7 Commence supply
New 2008 onwards
1 Attestation of Conformity
2 Initial Type Testing
3 Sector Scheme 14 + FPC
4 CE marking by notified body (NoBos) ifrequired in future not a requirementnow
5 Commence supply
Type Test is Mix specific - valid for fiveyears
Transferable from plant to plant andcontract to contract
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Description examples
SMA 10 surf 40/60 PSV650/10MM SMA SC 50 PSV 65
HRA 15/10F surf 40/60 rec15% 0/10MM HRASC 50PEN SF
HRA 35/14F surf PMB perf35% 0/14MM HP HRASC POLYMER
HRA 35/14 surf 40/60 des35% 0/14MM HRASC 50PEN DESIGN
HRA 60/32 base 40/6060% 0/32MM HRABC/RB 50PEN (28MM)
AC 6 med surf 100/1500/6MM DSC 125PEN BS4987
AC 10 close surf 100/150 PSV600/10MM CGSC 125PEN (60PSV) BS4987
AC 14 EME 2 base 10/200/14MM EME class 2 10/20PEN
AC 20 dense bin 100/1500/20MM DBC 125PEN SF BS4987
2008 onwards2007
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PD 6691:2007
Each product will have a nominated target composition to whichconformance tolerances will be applied
Binder content - its expression and the method of calculation based on therelative density of aggregate back calculation formula
Annexes - give detailed information and guidance in the form of examples
on product specifications
Annex A1 Asphaltic Concrete and replaces BS4987
Annex A2 Hot Rolled Asphalt and replaces BS594
Annex A5 Stone Mastic Asphalt
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PD 6691:2007
Use of Reclaimed asphalt
Classification system used in EN 13108-8 for foreign matter andbinder properties
Recommended maximum of 10% in S/C and 50% in bases andbinder courses
More than 10% in S/C & more than 20% in bases and binder courses
- recovered binder from the mixture - penetration testing
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Product description mandatory text
Binder Grade
Course type
Size D
Asphalt type
160/220100/150100/15070/10030/4510/20
BASEBINSURF
3220141062
SMAHRAAC
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Additional text for UK descriptions
PSV
Miscellaneous
DES
Designed mixtures
EME2HMBHDM
Mix Type
MED/OPENCLOSEDENSE
Grading type
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BS 594987
UK only therefore its a Britishstandard
Combination of BS 594 : Part 2 andBS 4987 : Part 2 both of which arewithdrawn
Realignment with SHW 900 series
Includes protocols for type testing
Includes transport, laying, compaction
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BS 594987 Transport and laying
Informative Annexes:
Annex A
Delivery and rolling temperatures
Annex B
Rates of spread including HRA, SMA and EME2
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BS 594987 Transport and laying
Informative Type Testing protocols:
Annex C
DBM/HDM/HMB design voids (SHW 929)
Annex D
DBM/HDM/HMB resistance to permanent deformation (SHW 952)
Annex E
EME2 design and properties (TRL 636)
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BS 594987 Transport and laying
Annex F
Performance HRA properties (SHW 943) Annex G
SMA binder course properties (SHW 937)
Annex H
HRA Surface course design (BS 598 Pt 107)
Annex I
Calibration and operation of indirect density gauge
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BS 594987 Transport and laying
BS 594987 is intended as the BASELINE document for all applicationsincluding:
- roads
- car parks
- footways & cycleways
- play areas etc
Scheme 16 for Asphalt Laying
- BS 594987 becomes the main Normative reference