B15 CEN EN 13108 8 May 2012 DRAFT PDF
B15 CEN EN 13108 8 May 2012 DRAFT PDF
B15 CEN EN 13108 8 May 2012 DRAFT PDF
prEN 13108-8
CEN/TC
Secretariat: DIN
ICS:
Descriptors:
11.05.2012 H. Els
EN 13108-8:2012 (E)
Contents
Page
Foreword ..............................................................................................................................................................3
Introduction .........................................................................................................................................................4
1
Scope ......................................................................................................................................................5
3
3.1
3.2
4
4.1
4.2
4.2.1
4.2.2
4.3
4.4
4.5
5
5.1
5.2
5.3
5.4
5.4.1
5.4.2
5.4.3
5.4.4
5.5
Identification ........................................................................................................................................ 10
EN 13108-8:2012 (E)
Foreword
This European Standard (EN 13108-8:2012) has been prepared by Technical Committee CEN/TC 227 Road
materials, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by April 2006, and conflicting national standards shall be withdrawn at the
latest by January 2008.
This European Standard replaces EN 13108-8:2005.
This European Standard is one of a series as listed below:
EN 13108-1, Bituminous mixtures Material specifications Part 1: Asphalt concrete.
EN 13108-2, Bituminous mixtures Material specifications Part 2: Asphalt concrete for very thin layers.
EN 13108-3, Bituminous mixtures Material specifications Part 3: Soft asphalt.
EN 13108-4, Bituminous mixtures Material specifications Part 4: Hot rolled asphalt.
EN 13108-5, Bituminous mixtures Material specifications Part 5: Stone mastic asphalt.
EN 13108-6, Bituminous mixtures Material specifications Part 6: Mastic asphalt.
EN 13108-7, Bituminous mixtures Material specifications Part 7: Porous asphalt.
EN 13108-8, Bituminous mixtures Material specifications Part 8: Reclaimed Asphalt
EN 13108-9, Bituminous mixtures Material specifications Part 9: Asphalt for ultra thin layers
EN 13108-20, Bituminous mixtures Material specifications Part 20: Type testing.
EN 13108-21, Bituminous mixtures Material specifications Part 21: Factory production control.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland, Turkey and the United Kingdom.
EN 13108-8:2012 (E)
Introduction
The increasing use of recycling in asphalt production makes it necessary to specify reclaimed asphalt sold as
a constituent material in a way similar to that of aggregates and binders. In the asphalt product standards EN
13108-1 up to and including EN 13108-7 and EN 13108-9 the use of reclaimed asphalt is permitted with
requirements related to the percentage addition.
Site-won asphalt comprises asphalt taken by milling of asphalt road layers, slabs ripped up from asphalt
pavements and asphalt from reject and surplus production.
The processing of site-won asphalt results in reclaimed asphalt, suitable and ready to be used as constituent
material for asphalt, after being tested, assessed and classified according to this standard. Reclaimed asphalt
(RA) may be used as a constituent material for bituminous mixtures manufactured in an asphalt plant, in
accordance with the specifications for those mixtures.
This European Standard contains requirements for reclaimed asphalt with respect to binder and aggregate
properties and foreign matter that apply in all cases of usage of reclaimed asphalt. Additionally, this European
Standard indicates which properties of the reclaimed asphalt and its constituent materials shall be declared
and documented if a description of a feedstock is necessary.
Since the requirements for the asphalt mixtures are the same for mixtures with and without reclaimed asphalt,
a set of properties of the reclaimed asphalt are of importance. The particle size of the aggregate, the binder
content, the properties of the binder and foreign matter in the reclaimed asphalt are relevant to the quality of
the product, i.e. the fresh asphalt in which it is mixed. The level of homogeneity of the material in practice
determines the maximum amount of reclaimed asphalt that may be used.
The size of the particles of asphalt in the reclaimed asphalt, which may range from large lumps to finely milled
material, is relevant only to the process to be used to mix into the fresh asphalt.
EN 13108-8:2012 (E)
Scope
This European Standard specifies requirements for the classification and description of reclaimed asphalt as a
constituent material for asphalt mixtures. It is not a Standard for compliance.
This European Standard only specifies reclaimed asphalt with bituminous binders, such as: paving grade
bitumen, modified bitumen or hard grade bitumen. Reclaimed asphalt contaminated with coal tar is not
covered by this Standard and will need to be considered under Member State Environmental Regulations.
Normative references
The following referenced documents are indispensable for the application of this European Standard. For
dated references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 932-1, Test for general properties of aggregates Part 1: Methods for sampling
EN 1426, Bitumen and bituminous binders Determination of needle penetration
EN 1427, Bitumen and bituminous binders Determination of softening point Ring and Ball method
EN 12596, Bitumen and bituminous binders - Determination of dynamic viscosity by vacuum capillary
EN 12697-1, Bituminous mixtures Test methods for hot mix asphalt Part 1: Soluble binder content
EN 12697-2, Bituminous mixtures Test method for hot mix asphalt Part 2. Determination of particle size
distribution
EN 12697-3, Bituminous mixtures Test methods for hot mix asphalt Part 3: Bitumen recovery: Rotary
evaporator
EN 12697-4, Bituminous mixtures Test methods for hot mix asphalt Part 4: Bitumen recovery:
Fractionating column
EN 12697-42, Bituminous mixtures Test methods for hot mix asphalt Part 42: Amount of foreign matters in
reclaimed asphalt.
EN 13043, Aggregates for bituminous mixtures and surface treatments for roads, airfields and other trafficked
areas
EN 13108-20, Bituminous mixtures Material specifications Part 20: Type Testing
3
3.1
For the purpose of this European Standard, the following terms and definitions apply.
3.1.1
asphalt
mixture of aggregates and bituminous binder.
3.1.2
site-won asphalt
EN 13108-8:2012 (E)
the material to be recycled, in the form of milled asphalt road layers or as slabs ripped up from asphalt
pavements, or being asphalt from reject or surplus production. These materials will require assessment and
often processing before being suitable as a constituent material.
3.1.3
reclaimed asphalt
the processed site-won asphalt, suitable and ready to be used as constituent material for asphalt, after being
tested, assessed and classified according to this standard.
NOTE: processing can include one or more of: milling, crushing, sieving (screening), blending etc.
3.1.4
feedstock of reclaimed asphalt
quantity of reclaimed asphalt (according to 3.1.3) with classified / declared properties, suitable and ready to be
used as constituent material for the manufacturing of asphalt mixtures, being either:
reclaimed asphalt used for a special purpose or reclaimed asphalt from special asphalt mixtures with
specific properties (e.g. PSV, aggregate type, etc.)
or
reclaimed asphalt in a stockpile which is added to and used of, on a regular basis, as long as the
requirements of clause 5 and of the final asphalt mixture are observed.
NOTE 1: The latter is also called the general feedstock, while the former may need additional description by
the manufacturer.
NOTE 2: When the properties of the reclaimed asphalt in the general feedstock change in such an extent that
the reclaimed asphalt as constituent material is not conforming to the reclaimed asphalt as documented in the
Type Test, EN 13108-20 requests a new Type Test.
Feedstocks will have been assessed and they consist only of reclaimed asphalt according to 3.1.3.
3.1.5
aggregate size
designation of the size of the aggregate in the reclaimed asphalt in terms of lower (d) and upper (D) sieve
sizes, expressed as d/D. For reclaimed asphalt, d will almost invariably be 0.
3.1.6
particle size of reclaimed asphalt
maximum size of the pieces of asphalt in the reclaimed material, expressed as a sieve size (U).
3.2
3.2.1
D upper sieve size of the aggregate in the reclaimed asphalt
Sieve size in mm and the larger of:
-
and
-
3.2.2
U particle size of reclaimed asphalt
Smallest sieve size in mm through which 100 % of the asphalt particles pass.
3.2.3
U RA d/D
EN 13108-8:2012 (E)
Reclaimed asphalt shall be designated by the abbreviation RA, preceded by the asphalt particle size
designation U and followed by the aggregate size designation d/D mm
EXAMPLE
40 RA 0/8 mm: Reclaimed asphalt, of which the aggregate has an upper sieve size of 8 mm and the
asphalt particles have a maximum size of 40 mm.
4.1
Foreign matter
The presence, content and type of any foreign matter, as defined below, shall be documented and the
category declared.
The content of foreign matter shall be determined according to EN 12697-42
Foreign matter comprises materials other than natural aggregate, not derived from asphalt and are divided in
two groups:
Group 1 materials such as:
bricks;
cement mortar;
metal;
synthetic materials;
wood;
plastics.
The reclaimed asphalt shall be classified in terms of foreign matter content as described below:
Category F1- content of group 1 material not greater than 1 %, content of group 2 material not greater than
0,1 %;
Category F5- content of group 1 material not greater than 5 %, content of group 2 material not greater than
0,1 %;
Category Fdec- content and nature of all foreign matter declared.
4.2
4.2.1
Binder
Type of binder
The type of binder shall be documented and declared when and if any information from either contemporary or
earlier investigations is available. This declaration shall indicate whether the binder is mainly a paving grade
bitumen, a modified bitumen or a hard grade bitumen or if the reclaimed asphalt in the feedstock contains a
modifier additive. Reclaimed asphalt contaminated with coal tar is not covered by this Standard and will need
to be considered under Member State Environmental Regulations.
EN 13108-8:2012 (E)
4.2.2
Binder properties
If necessary (see Note), either the mean penetration, the mean softening point or the mean viscosity of the
binder of the samples according to 5.4.3 shall be documented and declared as either fixed or declared
categories as described below.
The recovery of bitumen involves the use of potentially harmful solvents and should be limited to
the minimum essential frequency.
NOTE
reclaimed asphalt shall be categorised as P15 if the penetration of the binder of each of the samples
according to 5.4.3 is at least 10 x 0,1 mm and the mean penetration of all of the samples is at least 15 x
0,1 mm mm, or
reclaimed asphalt shall be categorised as S70 if the softening point of the binder of each of the samples
according to 5.4.3 is no greater than 77 C and the mean softening point of all of the samples is no
greater than 70 C, or
either the mean penetration values or the mean softening points from all samples according to 5.4.3 shall
be declared as category Pdec or Sdec, or
for reclaimed asphalt to be used in soft asphalt, the mean viscosity at 60 C shall be declared as Vdec.
When the feedstock contains mainly asphalt with other than paving grade bitumen, a declaration shall be
made of the type and properties of the binder, based on either contemporary or earlier investigations and
information, to enable evaluation of its suitability.
Reclaimed asphalt contaminated with coal tar is not covered by this Standard and will need to be considered
under Member State Environmental Regulations.
4.3
The mean grading of the aggregate from the samples according to 5.4.3 shall be declared.
The grading shall be determined according to EN 12697-2 and expressed in percentages passing the sieves
1,4 D; D; 2 mm and 0,063 mm and (a) coarse sieve(s) between D and 2 mm and (a) sieve(s) between 2 mm
and 0,063 mm.
Coarse sieves shall be selected from basic set plus either set 1 or set 2 according to EN 13043.
The fine sieves shall be selected from the sieves 1 mm, 0,5 mm, 0,25 mm and 0,125 mm.
D shall be determined according to 3.2.1.
4.4
Binder content
The mean binder content of the samples of the feedstock according to 5.4.3 shall be declared.
EN 13108-8:2012 (E)
The binder content shall be determined according to EN 12697-1 including reclaimed asphalt with polymer
modified binder.
4.5
The maximum size of the reclaimed asphalt particles URA of the samples according to 5.4.3 shall be
documented and declared.
U shall be determined according to 3.2.2 and to EN 12697-2.
5.1
If necessary, the mix group(s) and/or course(s) of the reclaimed asphalt from which the feedstock has been
derived shall be declared.
5.2
5.3
Homogeneity
5.4
5.4.1
Sampling
Sampling shall be carried out on sample increments as defined in EN 932-1 but without homogenisation into
a bulk sample. .
5.4.3 Test frequency and number of samples (n)
The test frequency to determine the number of samples (n) for the testing according 5.4.4 shall be taken from
table 1, with level Z being the minimum test frequency under all circumstances.
NOTE: The level should take into account the source of the reclaimed asphalt, its intended use
(courses and type) and the intended addition percentage.
EN 13108-8:2012 (E)
Level
Tonnes / test
500
1.000
2.000
5.4.4 Testing
The number of samples (n) shall be tested for determining the conformity with section 4 and, if necessary, for
describing the feedstock according to 5.3.
The required minimum or maximum and/or mean values or ranges shall be determined.
5.5
Stock control
When putting assessed and/or processed reclaimed asphalt to stock, the necessary investigations for
documentation and declaration of the feedstock properties shall be implemented.
Identification
For the case of the sale of reclaimed asphalt classified as a constituent material for asphalt to this Standard,
the delivery ticket shall contain the following information relating to the identification:
10
supplier;
designation;