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and Fritz Hull came upon the idea of pumping concrete through pipes. They pumped concrete to a height of 38 meters (125 ft) and a distance of 120 meters (130 yd). Shortly after, a concrete pump was patented in
Holland in 1932 by Jacob Cornelius Kweimn (Jacobus Cornelius Kooijman). This
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Usually, piston pumps are used, because they can produce hundreds of atmospheres of pressure. Such piston-style pumps can push cylinders of heterogenous concrete mixes (aggregate + cement). At present, double-piston pumps are predominantly used, which are hydraulically driven by electric or diesel
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The return pressure piston of one pressure cylinder creates a vacuum, the medium from the feed funnel is sucked into the cylinder. At the same time, the advancing delivery piston pushes the contents of the other delivery cylinder through the transfer tube into the delivery line. At the end of the
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to be manually attached to the outlet of the machine and feed the concrete to the place of application. The length of the hoses varies, typical hose lengths are 3.0, 3.8, 7.6, and 15.2 metres (10, 12.5, 25, and 50 ft), depending on the diameter. Due to their lower pump
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For these reasons, many options have existed side by side for a long time. Nowadays, fluid pressures of up to 400 bar (5,800 psi) and flow rates of up to 200 m/h (260 cu yd/h) can be achieved, while using piston-type pumps.
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Because it is a fluid, concrete can be pumped to where it is needed. Here, a concrete transport truck is feeding concrete to a concrete pumper, which is pumping it to where a slab is being poured.
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The second main type of concrete pump, commonly referred to as a "line pump" or trailer-mounted concrete pump, is either mounted on a truck or placed on a trailer. This pump requires
205:
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Concrete pump drives are now exclusively hydraulic, so control options vary between individual manufacturers. Each system has certain advantages and disadvantages.
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stroke, the pump switches, i.e., the transfer tube turns in front of the other filled pressure cylinders, and the pressure pistons change their movement direction.
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Concrete pump designers face many challenges because concrete is heavy, viscous, abrasive, contains pieces of hard rock, and solidifies if not kept moving.
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engines using oil pumps. The pressure pistons are hydraulically connected to each other through the drive cylinders and operate in a two-stroke mode.
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Photo showing a concrete pump working a large foundation pour, showing deployed outriggers, rebar mats, and concrete mixer delivering concrete.
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187:, either in wheelbarrows or in buckets lifted by cranes. This required a lot of time and labor. In 1927, the German engineers
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132:) to place concrete accurately. It is attached to a truck or a semi-trailer. Boom pumps are capable of pumping at very high
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A common type of concrete pump for large scale construction projects is known as a boom concrete pump, because it uses a
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Until the early 20th century, concrete was mixed on the job site and transported from the cement mixer to the
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and rail mounted concrete pumps, but these are uncommon and only used on specialized jobsites such as
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and are less labor intensive to operate when compared to line or other types of concrete pumps.
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Fully deployed concrete pump, showing outriggers and boom in use while receiving concrete.
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volume, line pumps are used for smaller volume concrete placing applications such as
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To illustrate, below are data on a typical concrete sample pump BRF 42.14 H:
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Concrete pressure: 112 bar (11,200 kPa; 1,624 psi)
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850:
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Putzmeister brand positive displacement mortar and plaster pump
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patent incorporated the developer's previous German patent.
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Pumping concrete into aluminium concrete formwork in Mexico.
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160:, single family home concrete slabs and most ground slabs.
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Machine used for transferring liquid concrete by pumping
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Horizontal reach of boom: 38.0 meters (124.7 ft)
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Operating principle of piston pump with seat valves
302:Number of substitutions of strokes per minute: 27
284:Vertical reach of boom: 41.9 meters (137 ft)
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1134:International Federation for Structural Concrete
539:"Concrete pumping: advantages and disadvantages"
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290:Pumping rate: 30 m/h (39 cu yd/h)
46:but its sources remain unclear because it lacks
335:A Putzmeister concrete pump in Germany in 1985
117:. There are different types of concrete pumps.
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299:Cylinder diameter: 210 mm (8.3 in)
296:Cylinder length: 2,100 mm (83 in)
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109:is a machine used for transferring liquid
77:Learn how and when to remove this message
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447:Movement and Distribution of Concrete
421:- concrete pump technology in general
697:Ground granulated blast-furnace slag
323:Construction site with concrete pump
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1114:Institution of Structural Engineers
240:Important performance factors are:
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347:Concrete pump folded for transport
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425:Concrete mixing transport trucks
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612:Roman architectural revolution
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518:concretepumpingauckland.co.nz
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450:. McGraw-Hill. p. 132.
305:Number of outriggers legs: 4
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1129:Portland Cement Association
1104:American Concrete Institute
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268:Example of pump performance
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607:Ancient Roman architecture
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1119:Indian Concrete Institute
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444:Illingworth J.R. (1972).
419:High-density solids pump
32:This article includes a
489:"How a gear pump works"
61:more precise citations.
1225:Construction equipment
897:Alkali–silica reaction
655:Energetically modified
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102:
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212:
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882:Environmental impact
740:Reversing drum mixer
221:For lower pressures
514:"Piston-type pumps"
985:Self-consolidating
677:Water–cement ratio
359:Boom concrete pump
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244:discharge pressure
215:
103:
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34:list of references
1230:German inventions
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1199:Category:Concrete
980:Roller-compacting
801:Climbing formwork
650:Calcium aluminate
622:Roman engineering
259:system complexity
223:peristaltic pumps
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147:concrete placing
122:remote-controlled
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1109:Concrete Society
920:Fiber-reinforced
735:Volumetric mixer
627:Roman technology
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477:Intex Pool Pumps
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279:BRF 42.14 H pump
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163:There are also
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154:swimming pools
128:arm (called a
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42:external links
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1097:Organizations
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1061:slab on grade
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687:Reinforcement
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1073:Step barrier
1034:Applications
945:Nanoconcrete
835:
831:Power trowel
816:Power screed
806:Slip forming
779:Construction
546:. Retrieved
542:
533:
521:. Retrieved
517:
508:
496:. Retrieved
492:
483:
472:
461:. Retrieved
446:
439:
271:
262:
239:
236:
232:
229:How it works
225:are common.
220:
216:
199:
182:
165:skid mounted
162:
138:
129:
119:
106:
104:
73:
64:
53:Please help
45:
1051:hollow-core
1010:Waste light
1005:Translucent
965:Prestressed
892:Segregation
877:Degradation
765:Cover meter
702:Silica fume
637:Composition
493:web.mit.edu
59:introducing
1214:Categories
1150:Eurocode 2
1088:Structures
975:Reinforced
935:Lunarcrete
915:AstroCrete
872:Durability
867:Properties
745:Slump test
717:Production
707:Metakaolin
463:2012-06-18
431:References
1181:Hempcrete
1143:Standards
970:Ready-mix
887:Recycling
682:Aggregate
665:Rosendale
196:Mechanism
189:Max Giese
158:sidewalks
67:July 2014
1220:Concrete
1174:See also
1165:EN 10080
1160:EN 206-1
1155:EN 197-1
1014:Aerated
955:Polished
950:Pervious
925:Filigree
821:Finisher
796:Formwork
660:Portland
591:Concrete
548:July 12,
523:July 12,
498:July 12,
413:See also
185:formwork
145:flexible
111:concrete
1124:Nanocem
1083:Columns
960:Polymer
860:Science
826:Grinder
786:Precast
692:Fly ash
599:History
310:Gallery
179:History
173:tunnels
134:volumes
126:robotic
115:pumping
55:improve
1046:waffle
995:Sulfur
851:Tremie
846:Sealer
811:Screed
755:Curing
645:Cement
454:
1078:Roads
1000:Tabby
907:Types
841:Float
770:Rebar
725:Plant
672:Water
254:price
169:mines
149:hoses
141:steel
40:, or
1041:Slab
1023:RAAC
940:Mass
930:Foam
836:Pump
550:2022
525:2022
500:2022
452:ISBN
171:and
130:boom
1018:AAC
143:or
113:by
1216::
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175:.
156:,
105:A
44:,
36:,
583:e
576:t
569:v
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80:)
74:(
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65:(
51:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
