FORMWORK PRESSURES

The distribution of concrete pressure against a vertical form face can be explained by the pore-water pressure theory. Site measurements have shown that about 90% of the maximum concrete pressure on the formwork comes from the pore-water pressure and therefore the key to understanding the mechanisms controlling the concrete pressure on formwork lies in understanding the development and dispersal of pore-water pressure. When unsealed Douglas fir plywood formwork with normal release agents is used, the formwork pressures may be substantially lower than the values estimated by the Ciria method. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00105317
• Corporate Authors:

  Plenum Publishing Corporation

  233 Spring Street
  New York, NY  United States  10013

  Plenum Publishing Corporation

  233 Spring Street
  New York, NY  United States  10013

  Plenum Publishing Corporation

  233 Spring Street
  New York, NY  United States  10013
• Authors:
  • HARRISON, T A
• Publication Date: 1983-5

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 27-29
• Serial:
  • CONCRETE
  • Volume: 17
  • Issue Number: 5
  • Publisher: THE CONCRETE SOCIETY
  • ISSN: 0010-5317

Subject/Index Terms

• TRT Terms: Concrete; Evaluation and assessment; Formwork; Plywood; Pore water pressures; Pressure
• ITRD Terms: 3455: Bridge; 6464: Calculation; 4755: Concrete; 9020: Evaluation (assessment); 132: Forecast; 3639: Formwork; 5762: Pore water pressure; 5412: Pressure; 4794: Reinforced concrete; 5731: Seismic; 6288: Test method
• Subject Areas: Highways; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00382481
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Apr 30 1984 12:00AM