Pumping for productivity concrete construction magazine. The trailer concrete pump is a common pump in construction site. A pump is a device that moves fluids liquids or gases, or sometimes slurries, by mechanical. Improving pumping system performance department of energy. Concrete for pumping concrete construction magazine. Concrete pumping can be a continuous horizontal transport and vertical transport, which has the advantages of high efficiency. What is working principle of a water pump, the pump. Pumps are essential to the daily operation of many facilities.
As long as the hopper stays full and there are no blockages in the concrete hoses, the process of pumping the concrete goes quite smoothly. The operating principle of the pump is to convert mechanical energy to pressure. Centrifugal pump basics how centrifugal pumps work working principle hvacr. The working principle of a pump is, it enhances the fluids pressure to provide the driving strength which is necessary for flow. Without references, describe the purpose, construction, and principle of operation for positive displacement pumps. Safe work method statement placement of concrete with.
Main hydraulic pump hydraulic tank capacity diesel engine fuel tank capacity hopper capacity axle tires brakes length width hopper height weight dry. The terrain is flat, so access for the concrete truck is ok. Its purpose is to convert energy of a prime mover a electric motor or turbine first into velocity or kinetic energy and then into pressure energy of a fluid that is being pumped. When starting, the stirring pump drives the hydraulic through the motor and the hydraulic pump drives the hydraulic cylinder, thus the piston in the conveying cylinder is pushed to perform the alternating movement of pushing and sucking alternatively. Review different pump types commonly used understand the difference between centrifugal pumps and positive displacement pumps understand the working principle of the tuthill. The innovative pump units, hydraulic system and stateoftheart control ensures costeffective operation of the concrete pump. In the hopper an agitator keeps the fresh concrete flowing smoothly into the pumping cylinders. Piston head pressure maximum aggregate concrete cylinder. This guidance has been prepared by a working group representing all parts of the industry, including the health and safety executive,to provide clarity on the safe use of concrete pumps. Examination of air entrainment stability factors of pumped.
Depending on specific pump cell size, up to 20% of the oil leaves the simple closed loop system during each stroke through a flushing valve on the main pump and cycles to a cooler before it returns to. And it is successfully used in sealing, strengthening, stabilizing of rock and soil, tunneling, building hydropower project, etc, and also used for spraying mortar in construction and 3d panel. It is important that the pump is designed properly to control the amount of liquid that leaks along the shaft at the point that the shaft penetrates the pump casing. Hence, a one and onehalf inch gravel aggregate could be used in a pumping system with four inch openings. There are mixes that do not pump at all or cause the pump lines to clog. Depending on the specific pump cell size, up to 20% of the oil leaves the simple closed loop system during each stroke through a flushing valve on the main pump and cycles to a cooler before it returns to the hydraulic oil tank. If you do not have adobe reader, obtain a free download. The forced vortex flow means when a certain mass of fluid or liquid is allowed to rotate by an external torque than there is a rise in pressure head of the rotating liquid takes place. These pumps can cover a distance of 90 m horizontally and 30 m vertically, and are capable of pumping 20 m3 of concrete per hour using 3 inch pipes. Pumping tips, concrete pumping the concrete network. We offer range of concrete pumping services for commercial, industrial and residential projects. This code of practice may be cited as, code of practice, pumping concrete. A positive displacement pump operating against a closed discharge valve continues to. Concreting placement of concrete using a concrete pump safe work method statement is a 15 page document compliant with statute ohs reporting requirements.
Remote cable andor radio are provided for the use of the hose man only, the pump operator must be no more than six 6 feet from the pump during its operation. Thus, the cryopump is by its physical principle a highvacuum pump. Safe use of concrete pumps uks largest concrete pump. It is recommended that you download this pdf document and assignment. In addition, the smaller diameter slows the flow of concrete, giving the hose operator better control of the placement. Working principle it works on the principle of forced vortex flow. Concrete 101 a guide to understanding the qualities of. It identifies known hazards and risks, and outlines the control measures to be implemented to eliminate or minimise the risk of death, injury or illness generated as a result of placing. Generally used for working with a large stone or aggregate. For example, easier and quicker replacement of wear parts. We use modern and well maintained equipments so that your job is done at the right time. Oil to main pump main pumps boom pump agitator pump changeover hose fill stroke low pressure side pump stroke highcontrollable pumping pressure side flushing valve hydraulic cylinders material cylinders ez clean out rs 907 series hopper accumulator pump gear box port a pedestal port b one of our most popular models, the 36zmeter offers the. Reducers may be used on a boom pump to bring the diameter down to 2 or 3 inches, and 90degree elbow fittings attached at the end of the hose assembly creates an s in the line, breaking the long fall of the concrete. By working together as a team and following rules for safe concrete pumping, accidents can be substantially reduced.
Read, understand and follow all safety, transportation and storage recommendations on the material safety and data sheets of the material that will be dispensed. Some concrete pump trucks have different types of valve systems, svalves, ballvalves, but basically thats how a concrete pump works. Print this instruction sheet so you can refer to it while you fill out the application. Plus, this highly versatile 4section roll and fold boom is mounted on a fouraxle chassis for enhanced. This warranty does not apply to any pump if attempts have been made to pump concrete materials which have separated, to any pump which has been repaired with other than genuine mayco parts, nor to any pump which has been altered, repaired or used in such manner as to adversely affect its performance, nor to normal service or maintenance or where. The formandpump repair technique is a multistep process of preparing and constructing formwork, and pumping repair material into the cavity confined by formwork and existing concrete. The operating manual of any centrifugal pump often starts with a general statement. Putzmeisters innovative 38z5meter features a completely brand new design for its fivesection boom arm and pedestal for increased maneuverability, a reduced boom unfolding height, reduced overall weight, and a more userfriendly design. For pumpable mixes, the maximum size of coarse aggregate should be limited to 33 percent of the minimum opening in either the pump or the pipeline.
Surface repair using formandpump techniques aci rap5 5 step 6cleaning of reinforcing steel and concrete with abrasive blasting. Review of pump operation, starting with hydraulic fundamentals and. The pumping operation starts with the discharge of the concrete, usually from a ready mix truck, into a hopper large enough to hold a small supply of fresh concrete. We recommend using concrete pumps to make the process of transporting concrete effortless and convenient. Therefore, you should be careful when you operate it. Slickpak pump primer from fritzpk it is important to have all concrete mixes specified as pumpable prior to any concrete pours. I plan on pouring concrete directly from the chute, rather than renting a pump.
Centrifugal pumps are the most preferred home water pumps. The air loss due to pumping can be determined by measuring the air content of samples discharged from the ready mixed concrete truck and at discharge from the pump. In the construction process, we often use concrete pump which is a convenient tool to reduce the human labor and improve the working efficiency. How a concrete pump works concrete construction magazine.
Concrete pump delivery industry guidelines ccaa offices national office level 10, 163175 oriordan street mascot nsw 2020 postal address po box 124 mascot nsw 1460 telephone 61 2 9667 8300 facsimile 61 2 9693 5234 brisbane office suite 2, level 2 485 ipswich road annerley qld 4103 telephone 61 7 3227 5200 facsimile 61 7 3892. In this presentation an overview of the operating principles and of the. We have reliable concrete pumps used on all types of job sites. It is known as a boom concrete pump because it uses a remotecontrolled articulating robotic arm called a boom to place concrete accurately boom pumps are used. Concrete piston pumps operate on the same principle as. What began with one pump truck at fort lewis has grown to include six fulltime trucks, operators, and a thriving new company in southwest washington. The system consists of a valve shifting from cylinder to cylinder which pumps concrete through one outlet. The working principle of a water pump depends on the type of motor electric, centrifugal, diesel driven, etc. Pumped concrete with admixtures dura build care pvt. However the limited compression ratio of the pumps limits the achievable ultimate pressure.
Vibratory pumps are similar to linear compressors, having the same operating principle. Screw pumps also falls in the category of rotary pumps and have the same mechanism and principle. Pump primers can greatly reduce issues associated with pumping concrete and help pumping lines last longer. A centrifugal pump on the other hand works only when the pump casing and the suction pipe are entirely filled with water and no air has entered. Concrete pumpwith the same setup, only putzmeister has the technology to offer both 260 yd3hr output and provide 1233 psi concrete pressure with its. Another contractor recently used two boom pumpsa 36meter and 42meterto top out two story apartment buildings in just 3 months. The main principal behind the working of every water pressure booster pump for home is the conversion of energy into mechanical energy and using it for providing the required pressure for pumping the water. In working process, it is used to pump high pressure fluids. Heres paul sulman of reed concrete pumps explaining how a concrete pump wet shotcrete machine works, in very simpleterms.
Concrete output per hour cubic yards cubic meters 173 2 2 163 maximum pressure on concrete psi bar 1169 80 1169 80 maximum strokes per minute 18 18 22 22 pump cylinder diameter in. The stem wallfooters are built from 10 inch core bb icf. A construction site would obviously be synonymous with lots of concrete, therefore we at base concrete understand and how tedious it can be to ferry it using wheelbarrows or dumpers. The fluid in screw pumps moves between the screw threads and is displaced axially as the screws rotate and mesh. The safety operating principles for concrete trailer pump. Mini concrete pump is also called small fine stone pump, its scope application. A concrete pump is a machine used for transferring liquid concrete by pumping. This is the basic working principle for any diesel concrete pump machine. Do you know whats the working principle of concrete pump. Working mechanism of a centrifugal pump a centrifugal pump is one of the simplest pieces of equipment in any process plant. Screw pumps are the only type of pumps which are different from other rotary displacement pumps because of the axial flow of the fluid through their pumping elements. Concrete pumping refers to the process that concrete is delivered to the construction sites by pump, and the slump is not less than 100mm.
Pump kit on s 45 sx s 47 sx 2525h5 12085 mps 2525h6 12085 mps u. Having a good concrete pump truck operator is also very important. For wellrounded aggregates this maximum size can be increased to 40 percent. We will introduce for you in the following passage.
Application is in pdf format and should be filledin with your computer using adobe reader software. In person, things are usually a little bit more complex, as there are different types of concrete pumps. Examination of air entrainment stability factors of pumped concrete by ravi kumar macha. Use of rotation through a kidney seal allows concrete output through a single opening. The concrete trailer pumps should be placed on the ground of horizontal and dense. Constructibility requirements for materials used with the formandpump technique are limited only by their ability to be pumped and their flow characteristics. With design variations of the many different concrete pumps, it is not possible in. The first type of concrete pump is attached to a truck or longer units are on semitrailers.
Types of concrete pumps how to choose from our large. Understand the difference between centrifugal pumps and positive displacement pumps. Understanding the concrete pump machine working principle. Should you need details with a specific type, you ought to search for it about the official websites in the manufacturers or maybe in the consumer manuals. Centrifugal pump working principle, main parts with. Single 15 electric 162 70 4300 lbs theoretical concrete output c. But as the primers travel through the pipes, hoses, and even the hopper, they are exposed to concrete and cement residue.
Concrete pumps and concrete pumping information the. Mini concrete pump 10m3h dawin a leader in concrete pumping. For this a pump consumes a certain amount of energy from any external source. This is important because pump primers are mixed with tap water, and they may appear viscous or thick when initially mixed. Usually, the pressure filter supply pump is a centrifugal type pump, and the working principle is that slurry penetrates the pump during the rotating impellers eye which informs a circular motion. Become completely familiar with the us saws sx20000 dual component pump before operation.
Loss of air content in pumped concrete will not reduce freeze thaw durability of concrete as long as the air void system is not compromised. The basic working priciple of a hydaulic fluid pump. In simple words we consider a pump to be a black box to understand its working. Fluid enters a pump at certain velocity and pressure, which may be even zero, and leaves it with increased energy, that is, velocity and pressure. In almost all centrifugal pumps, the rotating shaft that drives the impeller penetrates the pressure boundary of the pump casing. Introduction the technique of pumping concrete has been in general and continuous use of over sixty years.
1477 964 72 278 16 47 118 212 1234 645 786 402 1514 480 1399 309 751 773 64 879 953 1067 1181 1422 1368 761 640 599 1271 336 400 425 1486 513