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 2014
© ISO 2014
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ii © ISO 2014 – All rights reserved

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
Foreword
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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
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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
iv © ISO 2014 – All rights reserved

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.
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.
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 %.
29−
Qd=×π /41××sn× 0
th ()
QQ=×η
ath v
where
Q is the theoretical delivery volume (m /h);
th
Q is the actual delivery volume (m /h);
a
d is the diameter of the concrete cylinder piston (mm)
s is the stroke (mm);
n is the number of strokes per hour;
η is the volumetric efficiency, equal to 0,8 to 0,9.
v
4 Classification of the concrete pumps
In general terms, concrete pumps are typically classified by the following five main characteristics (see
Table 1):
— type of pumping unit;
— mode or frequency of transportation;
— form of conveying;
— concrete mix delivery with assistance;
2 © ISO 2014 – All rights reserved

— drive system.
Table 1 — Classification of the concrete pumps
Classification Type Current examples Reference figures
Hydraulic driven Figure A.1
Mechanical driven —
Piston
Single-piston —
Type of pumping unit
Multi-piston Figure A.1
Vacuum Figure A.6, A.7
Rotary
Elastic Figure A.8, A.9
Figures A.10, A.11, A.14 and
Self-propelled mobile Truck-mounted
ISO 11375, Figure 41
Trailer-mounted (with tires Figure A.12 and ISO 11375,
on highway) Figure 42
Non self-propelled
Trailer-mounted, steel
mobile —
Mode or frequency of
wheels (rides on rails)
transportation
Trailer-mounted, track —
Skid-mounted/Fixed in
Figure A.13
place
Stationary
Trailer mounted (with tires
ISO 11375, Figure 42
off-road)
Figure A.10, A.14 and
Truck mounted
With integral distribu-
ISO 11375, Figure 41
tion boom
Trailer-mounted ISO 11375, Figure 43
Tower-mounted boom ISO 11375, Figure 44
Form of conveying
With separate distri-
Articulating distribution
bution boom
—
arm (with support legs)
With connected con- Pipe and/or hose run from
—
veying line pump to placement
Concrete-mix delivery
With pressurized air Concrete spraying —
with assistance
5 Commercial specifications
5.1 General characteristics
The following characteristics shall be specified:
— model and type;
— manufacturer’s name;
— maximum theoretical pumping capacity (m /h);
— maximum theoretical pressure in concrete (MPa);
— diameter of concrete pumping cylinder (mm);
— stroke of concrete pumping cylinder (mm);
−1
— number of strokes per minute (min );
— outlet diameter of concrete valve device (mm);
— capacity of hopper (m );
— engine power (kW);
— acceptable leaning angle of the machine during pumping operation (degrees);

— operating mass (kg).
Specify the mass of the concrete pump under the following conditions:
— ready to run;
— with or without cab (to be stated);
— including standard equipment;
— with a driver of mass 75 kg;
— with fuel tank half full;
— with cleaning water, cooling, lubrication and hydraulic systems full.
The manufacturer shall provide means for correlating the machine’s theoretical maximum concrete line
pressure to the theoretical pumping distance capability.
5.2 Applicable concrete
Specify the following:
— maximum applicable size of aggregate (mm);
— minimum applicable slump value (cm).
5.3 Drive
Specify the type of the concrete pump’s drive:
— by the vehicle engine and additional gear box for hydraulic pump driving;
— by separate engine and gear box driving the hydraulic system.
5.4
...