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BS 8476:2007

BS 8476:2007

$142.49

Code of practice for the safe use of concrete pumps

Published By Publication Date Number of Pages
BSI 2007 30
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1.1 This British Standard gives recommendations for the safe use of concrete pumping and placing equipment.

1.2 This British Standard is not applicable to plaster and screed pumps. It is not applicable to the construction of the machinery, which is covered by BS EN 12001.

PDF Catalog

PDF Pages PDF Title
3 Contents
1 Scope 1
2 Terms and definitions 1
3 Selection of personnel 3
4 Training and certification 4
5 Management of the concrete pumping operation 5
6 Selection of concrete pumps 7
7 Travelling to and from the site 8
8 Arrival on site and setting up the machine 9
9 During the pour 10
10 Work with delivery lines 12
11 Pumping special concretes 14
12 Cleaning out the machine and delivery lines 14
13 Leaving the site (lorry-mounted concrete pumps) 15
14 Personal protective equipment 15
15 Concrete pump examination and testing 16
16 Maintenance 17
Annexes
Annex A (normative) Recommended signals 19
Annex B (normative) Inspection of delivery lines 20
Annex C (informative) Pipeline wall thickness pressure – Maintenance card 21
Bibliography 22
List of figures
Figure 1 – Example concrete pump hire check list 18
5 Foreword
7 1 Scope
2 Terms and definitions
2.1 admixture
2.2 ball-catcher
2.3 banksman
2.4 boom tip safety device
2.5 competent person
2.6 concrete
2.7 concrete-placing boom
2.8 concrete pump
8 2.9 delivery pipelines
2.10 hirer
2.11 interlock
2.12 lorry-mounted concrete pump
2.13 owner
2.14 placement hose
2.15 receiving hopper
2.16 remote control box
2.17 safety induction training
2.18 signaller
9 2.19 sponge/rubber cleaning device
2.20 stabilizers
2.21 trailer-mounted concrete pump
2.22 wash-out adapter
3 Selection of personnel
a) be competent;
b) in the case of a lorry-mounted concrete pump operator, be over 21 years of age if driving a concrete pump on the highway;
c) be medically fit, with particular regard to eyesight, hearing and reflexes;
d) be physically able to operate the concrete pump safely;
e) be able to judge distances, heights and clearances;
f) be adequately trained and certificated for the class of concrete pump which they operate (see Clause 4);
g) have suitable and sufficient knowledge of the concrete pump and its safety devices;
h) be fully conversant with the duties of the signaller and understand the signals in Annex A;
10 i) be authorized to operate the concrete pump; and
j) in the case of a lorry-mounted concrete pump operator, be licensed to drive the appropriate class of vehicle.
a) relay signals from the concrete-placing gang to the pump operator;
b) direct safe movement of the concrete-placing boom, if applicable; and
c) give clear and precise verbal instructions using audio equipment, e.g. a two-way radio.
4 Training and certification
a) safety awareness;
b) knowledge of the employer’s risk assessment;
c) knowledge and use of any personal protective equipment (PPE) provided;
d) safe siting, rigging and de-rigging of the concrete pump in site conditions;
e) operating the concrete-placing boom safely, if applicable;
f) operating the concrete pump;
g) cleaning the concrete pump out;
h) working with delivery lines;
i) basic knowledge of concrete composition;
j) awareness of the dangers of compressed air;
k) working adjacent to overhead power lines;
l) dealing with emergency situations;
m) working with blockages;
n) personal health and safety considerations;
o) pre-driving checks, if applicable;
p) driving the lorry, if applicable;
q) necessary daily and weekly checks and maintenance of the concrete pump; and
r) documentation in relation to the job.
11 a) the use of the code of signals in Annex A;
b) the use of any communications device supplied; and
c) any special risks on the site, e.g. overhead obstructions.
5 Management of the concrete pumping operation
12 a) maximum reach of each concrete-placing boom, both horizontally and vertically;
b) standard equipment carried on a lorry-mounted concrete pump;
c) weights of delivery line, placement hoses, delivery hoses and accessories;
d) maximum likely loadings for each of the stabilizer bases;
e) footprint of the machine with all stabilizers extended;
f) concrete-placing boom configuration; and
g) maximum safe wind speed for the operation of the concrete-placing boom.
a) a site-specific risk assessment;
b) the preparation of a method statement;
c) the planning of the operation, including sufficient manpower;
d) the selection, provision and use of a suitable, CE-marked concrete pump, concrete-placing boom and delivery lines;
e) the need for additional delivery pipelines in addition to the standard kit carried;
f) the position of the concrete pump and any necessary preparation of the site for its positioning;
g) the site of the pour, taking into account proximity hazards, space availability and suitability of the ground to support the weight of the concrete pump;
h) the provision of properly trained and competent personnel who have been made aware of their relevant responsibilities under the Health and Safety At Work, etc., Act 1974 [1];
i) the requirement for all personnel to be able to communicate clearly;
j) adequate supervision by competent personnel;
k) verification that all necessary documentation is valid and available for inspection;
l) prevention of unauthorized use of the concrete pump and placing boom;
m) assurance of the safety of persons not involved in the pumping operation;
13 n) the provision of a cleaning-out area, taking into consideration all environmental issues;
o) adequate lighting;
p) the provision of a supply of suitable and sufficient concrete of a consistency which is readily pumpable at a sustainable rate; and
q) the provision of an adequate piped water supply at the pump position.
6 Selection of concrete pumps
a) access to and egress from the site suitable for the size of the concrete pump;
b) sufficient area for the concrete pump’s stabilizers to be correctly deployed;
c) the ability of the ground to support the loads likely to be imposed by the concrete pump’s stabilizers;
d) the horizontal and vertical distance, required output per hour and quantity to be pumped;
e) underground restrictions, e.g. cellars under pavements and cables close to the surface;
f) overhead obstructions, e.g. cables and structures;
g) the reach of the concrete-placing boom to the most remote point of the concrete pour;
h) suitable access for the ready-mixed concrete truck to the receiving hopper of the concrete pump;
i) the need for a signaller in circumstances where the operator will not be able to see the delivery end of the pipeline;
j) adequate protection of the permanent works from potential damage by the concrete-placing boom;
k) any special operational requirements or limitations imposed;
14 l) the need for properly designed support for the additional pipeline, e.g. the effect of load of the attachment of the pipeline to a scaffolding structure;
m) the need for the hirer/(sub)contractor to maintain any hirer-owned delivery line, for which the concrete pump owner has no responsibility; and
n) the conditions of hire, particularly in respect of insurance aspects.
a) 6.2, items a) to i);
b) the distances to be driven to and from the site by the operator to reduce the road safety risk element;
c) the hours worked by the operators on the previous day and the estimated rest period between jobs; and
d) the need for additional labour, e.g. for delivery pipeline work.
7 Travelling to and from the site
7.1 Lorry-mounted concrete pumps
7.2 Trailer-mounted concrete pumps and additional placing equipment
15 8 Arrival on site and setting up the machine
16 9 During the pour
18 10 Work with delivery lines
19 a) Personnel involved in the cleaning operation should wear protective clothing, a safety helmet and eye protection, and preferably a full face visor of the appropriate grade.
b) The hirer/(sub)contractor should establish effective communications with site personnel and should ensure that all personnel stand clear of the delivery line, particularly at the discharge end.
c) The delivery pipeline should be fully supported and secure.
d) All flexible hoses should be removed from the delivery line.
e) There should be no bends in the final 25% of the delivery line, unless the delivery pipeline is properly secured.
f) A ball-catcher attachment should be fitted to the discharge end of the delivery pipeline to catch the sponge/rubber cleaning …
g) The maximum output from the compressor should not exceed the pressure rating specified by the manufacturer.
h) Compressed air should be introduced into the delivery pipeline through a purpose-made washout adapter, designed for the purpose and equipped with an air entry control valve and at least one emergency pressure release valve.
i) The compressed air should be introduced gradually, sufficient only to move the sponge/rubber cleaning device steadily along the delivery line.
j) A competent assistant should follow the progress of the sponge rubber cleaning device while the concrete pump operator contro…
20 k) As the sponge/rubber cleaning device progresses and the resistance of the concrete decreases, the flow of air introduced into the delivery pipeline should be reduced by the concrete pump operator.
l) Air should be exhausted via the emergency valve whenever the speed of the discharge of concrete becomes too rapid.
m) The delivery pipeline should be considered to be pressurized during the cleaning process and no couplings should be loosened …
11 Pumping special concretes
12 Cleaning out the machine and delivery lines
21 13 Leaving the site (lorry-mounted concrete pumps)
14 Personal protective equipment
a) a safety helmet;
b) safety footwear;
c) overalls;
d) eye protection;
e) ear defenders;
f) fall protection equipment;
g) high visibility clothing conforming to BS EN 471;
h) impervious gloves or gauntlets;
i) barrier cream; and
j) waterproof clothing.
22 15 Concrete pump examination and testing
23 16 Maintenance
24 Figure 1 Example concrete pump hire check list
25 Annex A (normative) Recommended signals
26 Annex B (normative) Inspection of delivery lines
B.1 Steel delivery lines
B.2 Bends
B.3 Flexible pipelines
27 Annex C (informative) Pipeline wall thickness pressure – Maintenance card
28 Bibliography
[1] The Health and Safety at Work, etc. Act 1974, TSO: London
[2] The Control of Noise at Work Regulations 2005, SI 1643, TSO: London
[3] The Control of Substances Hazardous to Health Regulations 2002, SI 2677, TSO: London
[4] The Lifting Operations and Lifting Equipment Regulations 1998, SI 2307, TSO: London
[5] The Provision and Use of Work Equipment Regulations 1998, SI 2306, TSO: London
[6] The Road Traffic Act 1991, TSO: London
[7] The Construction (Safety, Health and Welfare) Regulations 1996, SI 1592, TSO: London
[8] The Management of Health and Safety Regulations 1999, SI 3242, TSO: London
[9] The Manual Handling Operations Regulations 1992, SI 2793, TSO: London
[10] The Control of Vibration at Work Regulations 2005, SI 1093, TSO: London
[11] The Work at Height Regulations 2005, SI 735, TSO: London
[12] The Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 1995, SI 3163, TSO: London
BS 8476:2007
$142.49