EXTREME PRESSURE CONCRETE PUMPS

The article discusses the design characteristics required in concrete pumping equipment able to pump a wide range of concrete mixes over increasing distances and heights. While standard machines operate at pressures of up to 50 bar, high-pressure pumps operate at up to 80 bar and extreme-pressure pumps can produce up to 165 bar. Between the two extremes of fines and void content of a concrete mix, the average mix can be pumped at about 30 cu m/h in a 100 mm diameter pipeline over a distance of 100 m against a back pressure of 45 bar. With extreme pressure equipment distances of 600 M and heights of over 180 M have been recorded. In machine design, it is important to avoid change of pipeline section and direction if back pressure and power consumption are to be minimised. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/10480594
• Corporate Authors:

  Morgan-Grampian (Professional Press) Limited

  Morgan-Grampian House, Calderwood Street
  London SE18 6QH,   England 
• Authors:
  • Godfrey, F E
• Publication Date: 1976-8

Language

• English

Media Info

• Features: Figures; Photos;
• Pagination: p. 22-23
• Serial:
  • Civil Engineering
  • Publisher: American Society of Civil Engineers
  • ISSN: 0885-7024
  • Serial URL: http://www.pubs.asce.org/ceonline/newce/html

Subject/Index Terms

• TRT Terms: Admixtures; Concrete; Design; Development; Equipment; Hydraulic properties; Pipelines; Pressure; Pumped concrete; Pumps
• Uncontrolled Terms: Design criteria
• ITRD Terms: 4755: Concrete; 9011: Design (overall design); 9013: Development; 3674: Equipment; 4748: Hydraulic properties; 5412: Pressure
• Subject Areas: Bridges and other structures; Construction; Design; Highways; Materials; Pipelines; Planning and Forecasting; Terminals and Facilities; Vehicles and Equipment; I32: Concrete; I53: Construction of Bridges and Retaining Walls; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00145354
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Apr 13 1977 12:00AM