ISO 15878:2008

INTERNATIONAL ISO
STANDARD 15878
First edition
2008-03-01

Road construction and maintenance
equipment — Asphalt pavers —
Terminology and commercial
specifications
Équipement pour la construction et l'entretien des routes —
Asphalteuse — Terminologie et spécifications commerciales




Reference number
ISO 15878:2008(E)
©
ISO 2008

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ISO 15878:2008(E)
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ISO 15878:2008(E)
Contents Page
Foreword. iv
1 Scope. 1
2 Normative references. 1
3 Terms and definitions. 1
4 Operating principle. 6
5 Description of an asphalt paver . 6
5.1 General. 6
5.2 Undercarriage type. 6
5.3 Method of mix transfer from hopper to the screed . 6
5.4 Screed type. 7
6 Commercial specifications. 7
6.1 Type of asphalt paver. 7
6.2 Basic characteristics of an asphalt paver. 7
6.3 Other characteristics. 8
7 Measurements. 10
7.1 General. 10
7.2 Operating configuration. 11
7.3 Shipping configuration. 11
7.4 Material bulk density . 11
Annex A (normative) Structure and dimension characteristics of asphalt pavers — Examples. 12
Bibliography . 31

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ISO 15878:2008(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 15878 was prepared by Technical Committee ISO/TC 195, Building construction machinery and
equipment.

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INTERNATIONAL STANDARD ISO 15878:2008(E)

Road construction and maintenance equipment — Asphalt
pavers — Terminology and commercial specifications
1 Scope
This International Standard deals with asphalt pavers used in road construction and maintenance processes.
It provides terminology for the machine and its components, and also gives operation principles and
commercial specifications and establishes parameters for technical characteristics.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 3046-1:2002, Reciprocating internal combustion engines — Performance — Part 1: Declarations of power,
fuel and lubricating oil consumptions, and test methods — Additional requirements for engines for general use
ISO 3911:2004, Wheels and rims for pneumatic tyres — Vocabulary, designation and marking
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
asphalt paver
mobile machine intended for placement and pre-compaction of concrete asphalt mixes using the floating/self
levelling screed method
NOTE 1 Equipment normally consists of a tractor unit and a free floating screed.
NOTE 2 See also 2.4.3 of ISO 22242:2005.
3.2
adjustable width strike off
movable blade at the leading edge of a fixed screed for varying screed width
NOTE For an example, see Figure A.5.
3.3
apron
area of the hopper in front of the conveyor
NOTE For an example, see Figure A.9.
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ISO 15878:2008(E)
3.4
asphalt paver operator
person whose primary functions are to control paver speed, direction and laying of paving material
3.5
asphalt paver operator station
designated location(s) from which the operator controls the functions of the paver
3.6
automatic feeder system control
system for automatic control of the flow of paving material to the screed
3.7
automatic screed control
system for automatic control of the mat profile in relation to an external reference
3.8
bevel edger
attachment for putting a sloped surface on the edge of the mat
3.9
bracing
device for bracing the screed when built up for large working widths
3.10
conveyor tunnel
passageway through which paving material moves from the hopper to the auger/screed
NOTE For an example, see Figure A.4.
3.11
cut-off plate
attachment used in conjunction with the screed end plate to reduce the effective screed width
3.12
conveyor (slat or auger)
device for transferring paving material from the hopper to the spreading auger
NOTE For examples, see Figure A.4 and Figure A.11.
3.13
conveyor flow gate
device for adjustment of the height of paving material being transferred by the conveyor
NOTE For an example, see Figure A.4.
3.14
crown control
device that shapes the screed to form a mat with the desired crown
NOTE For an example, see Figure A.9.
3.15
extendable screed
screed with permanently mounted extensions that can be extended or retracted to change the mat width when
the paver is in operation
NOTE For an example, see Figure A.12.
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ISO 15878:2008(E)
3.16
fixed width screed
screed with a constant width that can only be changed by adding or removing extensions
NOTE For an example, see Figure A.4.
3.17
grade control
system for control of the longitudinal profile of the mat
NOTE For an example, see Figure A.9.
3.18
hopper
component of the paver which receives the paving material from an external source
NOTE For an example, see Figure A.4.
3.19
hopper insert
device to increase hopper capacity
3.20
material feed system
combined conveyor and auger components that transfer paving material from the hopper and distribute it in
front of the screed
NOTE For an example, see Figure A.4.
3.21
material feed sensor
device used to detect the quantity of paving material in front of the screed
NOTE For an example, see Figure A.9.
3.22
material retaining plate
material limiting plate
attachment installed in front of a spreading auger extension to prevent the paving material from flowing
forwards
3.23
mobile grade reference
towed attachment that provides an independent reference for the automatic grade control
NOTE For an example, see Figure A.9.
3.24
mouldboard
upper part of the front of the screed frame that pushes the surplus paving material being distributed by the
spreading auger
3.25
strike off (height-adjustable mouldboard)
attachment at the front of a screed for metering the paving material flowing under the screed
NOTE For an example, see Figure A.6.
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ISO 15878:2008(E)
3.26
pre-strike off
material management device attached in front of an extendable screed, for managing material build up in front
of the screed to allow for easy retraction and material flow to the end gates
NOTE 1 For equal width front mounted extensions, the pre-strike off prevents material from being built up in front of the
main screed to allow the extension to retract. For an example, see Figure A.7.
NOTE 2 For rear mounted extensions the pre-strike off prevents material from being built up in front of the extension
screed to allow easy retraction. For an example, see Figure A.8.
3.27
push-roller
device that contacts the tyres of the paving material delivery vehicle
NOTE For an example, see Figure A.4.
3.28
screed mounted control
device used to control some of the paving functions of the screed
3.29
screed
device towed behind the tractor to strike off, compact, contour and smooth the paving material
NOTE 1 For an example, see Figure A.12
NOTE 2 Depending on the type of screed, the following paving material compaction systems are identified:
⎯ static compaction: the construction material is compacted by the weight of the screed (see Figure A.13);
⎯ dynamic compaction: in addition to the static compaction, a single additional compaction system, which can consist of
vibrators or tamper bars, is fitted (see Figure A.14 and Figure A.15);
⎯ high compaction: in addition to static compaction, at least two compaction systems, which may consist of vibrators,
tamper bars or pressure bars, are fitted (see Figure A.16 and Figure A.17).
3.30
screed arm
attachment by which the screed is connected to and towed by the tractor
NOTE For an example, see Figure A.4.
3.31
screed end plate
vertically adjustable plate at the outboard end of the screed, which retains the paving material and forms the
edge of the mat
NOTE For an example, see Figure A.4.
3.32
screed extension
fixed or adjustable attachment to the screed for paving at widths greater than the main screed
NOTE For an example, see Figure A.10.
3.33
screed heater
device to heat the screed plate to prevent adhesion of paving material
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ISO 15878:2008(E)
3.34
screed lift
device used to raise the screed
NOTE For an example, see Figure A.9.
3.35
screed plate
component of the screed that shapes and smoothes the top surface of the mat
NOTE For an example, see Figure A.13.
3.36
screed travel lock
device that secures the screed in the raised position
NOTE For an example, see Figure A.10.
3.37
slope beam
component on which the slope control sensor is mounted
NOTE For an example, see Figure A.9.
3.38
slope control
control that relates to the transverse profile of the mat
NOTE For an example, see Figure A.9.
3.39
spreading auger
screw conveyor used for transverse distribution of paving material ahead of the screed
NOTE For an example, see Figure A.4.
3.40
steering guide
sighting device to enable the operator to follow a predetermined course
NOTE For an example, see Figure A.4.
3.41
tamper
system for pre-compaction, installed at the front of the screed
3.42
tamper bar(s)
reciprocating component(s) on the screed, used to provide additional compaction of the paving material
NOTE For an example, see Figure A.15.
3.43
thickness control
device to manually adjust the mat thickness
NOTE See Figure A.4.
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ISO 15878:2008(E)
3.44
tow point
pull point
point at which the screed arm is attached to the tractor
NOTE For an example, see Figure A.4.
3.45
tractor
component of a paver which provides propulsion and can also receive, convey and distribute paving material
NOTE For an example, see Figure A.4.
3.46
truck-hitch
device used to hold a paving material delivery vehicle in the proper position relative to the paver when
unloading the material into the hopper
3.47
asphalt fume control system
system that collects paving material fumes and exhausts them away from the operator and crew
4 Operating principle
Asphalt pavers place and pre-compact concrete asphalt mixes using the floating/self-levelling screed method.
The weight of the screed and its forward motion combined with additional vibrating and tamping elements are
used to pre-compact the mixes.
5 Description of an asphalt paver
5.1 General
The design type of an asphalt paver is determined according to the following criteria: undercarriage type,
method of mix transfer from hopper to screed and screed type.
5.2 Undercarriage type
The following types of undercarriage are identified:
⎯ wheeled (see Figure A.1);
⎯ steel tracked with replaceable track plates (see Figure A.2);
⎯ rubber tracked (see Figure A.3).
5.3 Method of mix transfer from hopper to the screed
The following methods are typically used:
⎯ by slat conveyor (see Figure A.4);
⎯ by auger (see Figure A.11);
⎯ by gravity.
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ISO 15878:2008(E)
5.4 Screed type
The following screed types are typically used:
⎯ fixed width (see Figure A.4);
⎯ hydraulically extendable (see Figure A.12);
⎯ extendable by bolt-on extensions.
6 Commercial specifications
6.1 Type of asphalt paver
Specify the type of the asphalt paver, e.g. rubber tyred with fixed width screed, tracked with variable width
screed, tracked with fixed width screed and others.
NOTE The examples of specifications for different types of asphalt paver are presented in Figure A.4, Figure A.9 and
Figure A.10.
6.2 Basic characteristics of an asph
...