ON THE GENERATION OF HEAT DURING THE MIXING OF CEMENT PASTES

A substantial amount of heat is generated during high-speed shear mixing of low water/cement ratio pastes (w/c=0.24). It was found that the major source of this heat is mechanical friction. Under constant temperature conditions, no evidence was found to suggest that the degree of hydration is greater after high-speed shear mixing than after typical low-speed paddle mixing for the same period of time. Whether or not the temperature is controlled, shear mixing reduces the apparent viscosity of pastes having a low water/cement ratio, as compared with pastes from paddle mixing.(A)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00088846
• Corporate Authors:

  Pergamon Press, Incorporated

  Maxwell House, Fairview Park
  Elmsford, NY  United States  10523
• Authors:
  • Brown, M L
  • Jennings, H M
  • Ledbetter, W B
• Publication Date: 1990-5

Language

• English

Media Info

• Pagination: p. 471-474
• Serial:
  • Cement and Concrete Research
  • Volume: 20
  • Issue Number: 3
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Cement paste; Heat; Hydration; Manufactures
• ITRD Terms: 4767: Cement paste; 6743: Heat; 7195: Hydration; 3647: Manufacture
• Subject Areas: Materials;

Filing Info

• Accession Number: 00606763
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Mar 31 1991 12:00AM