ISO 21573-1:2014

INTERNATIONAL ISO
STANDARD 21573-1
Second edition
2014-08-01
Building construction machinery and
equipment — Concrete pumps —
Part 1:
Terminology and commercial
specifications
Machines et matériels pour la construction des bâtiments — Pompes
à béton —
Partie 1: Terminologie et spécifications commerciales
Reference number
ISO 21573-1:2014(E)
©
ISO 2014

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ISO 21573-1:2014(E)

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ISO 21573-1:2014(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Classification of the concrete pumps . 2
5 Commercial specifications . 3
5.1 General characteristics . 3
5.2 Applicable concrete. 4
5.3 Drive . 4
5.4 Dimensional characteristics . 4
5.5 Conveying-pipe cleaning device . 5
5.6 Chassis cleaning device. 5
5.7 Distributing boom . 5
5.8 Outrigger component . 5
5.9 Hydraulic system . 6
5.10 Truck chassis . 6
5.11 Trailer chassis . 6
5.12 Attachments and tools . 7
Annex A (informative) Examples of concrete pump designs and their assemblies .8
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ISO 21573-1:2014(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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives
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. Details of any
patent rights identified during the development of the document will be in the Introduction and/or on
the ISO list of patent declarations received. www.iso.org/patents
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is Technical Committee ISO/TC 195, Building construction
machinery and equipment, Subcommittee SC 1, Machinery and equipment for concrete work.
This second edition cancels and replaces the first edition (ISO 21573-1:2006), of which it constitutes a
minor revision. The main changes are:
— editorial correction of numbering of table/figure references;
— addition of electric motor as drive power for concrete pump;
— editorial corrections in figures to clarify part names and callout.
ISO 21573 consists of the following parts, under the general title Building construction machinery and
equipment — Concrete pumps:
— Part 1: Terminology and commercial specifications
— Part 2: Procedure for examination of technical parameters
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ISO 21573-1:2014(E)

Introduction
This part of ISO 21573 deals with concrete pumps used on building sites for concrete-mix delivery. It
provides definitions and technical characteristics of the relevant machines. The figures in Annex A give
examples of current structures of concrete pumps and their principles of operation.
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INTERNATIONAL STANDARD ISO 21573-1:2014(E)
Building construction machinery and equipment —
Concrete pumps —
Part 1:
Terminology and commercial specifications
1 Scope
This part of ISO 21573 establishes terminology and commercial-literature specifications for concrete
pumps which are used on building sites for concrete-mix delivery.
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 11375:1998, Building construction machinery and equipment — Terms and definitions
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 11375 and the following apply.
3.1
piston-type concrete pump
pump in which a piston is used to impart energy to the concrete mix, with the intent of transporting the
mix to and through the conveying pipe and/or hose
Note 1 to entry: See Figure A.1.
3.2
rotary-type concrete pump
pump in which a peristaltic action is used to impart energy to the concrete mix with the intent of
transporting the mix to and through the conveying pipe and/or hose
Note 1 to entry: See Figures A.6, A.7, A.8 and A.9.
3.3
stationary-type concrete pump
skid, rail or wheeled-chassis mounted concrete pump intended for long-term operation on one building
site
Note 1 to entry: See Figure A.13.
3.4
piston-type concrete pump valve system
system composed of cut-off valves successively locking and opening concrete mix flow from the hopper
to the concrete cylinder and from the latter to the conveying pipe
Note 1 to entry: See Figures A.2, A.3, A.4 and A.5.
Note 2 to entry: The operation of the valves is synchronised so that, when the concrete-mix flow from the hopper
to the concrete cylinder is opened, the flow to the conveying pipe is closed. Various types of valve systems are
identified.
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ISO 21573-1:2014(E)

3.5
distributing boom
folded boom with fixed concrete mix conveying pipe the role of which is to deliver concrete mix to work
areas within its reach
Note 1 to entry: See Figures A.10 and A.14.
Note 2 to entry: The boom has the possibility of folding in the vertical plane and slewing around the vertical axis.
Typically, a rubber hose is fixed to the end of the conveying pipe, to facilitate concrete-mix distribution.
3.6
maximum applicable aggregate size
largest size of aggregate that can be consistently delivered through the concrete pump without blockage,
including any conveying pipe that is normally supplied on the finished product
3.7
minimum applicable slump
minimum value of slump applicable for conveying by concrete pump
3.8
maximum theoretical pumping capacity
theoretical delivery volume which is obtained at the maximum strokes/revolutions per minute of
concrete pump
Note 1 to entry: The actual delivery volume is calculated through application of the volumetric efficiency and the
theoretical delivery volume of the concrete pump. Using concrete of slump value of 18 cm to 21 cm, the volumetric
efficiency is about 90 %.
...