Cementitious Paste Setting Using Rheological and Pressure Measurements

For construction schedules, such as placement and formwork removal, to be controlled, how mechanical characteristics of concrete evolve during the setting period needs to be measured. Cement paste and mortar setting time measurement is usually done through the standard Vicat test, which does not determine when concrete pumping or extrusion may occur because of insufficient information (initial and final set time). Hydraulic form pressure and intrinsic material parameter (plastic viscosity and yield stress) variation effects on cement paste setting period are studied. Hydraulic and rheological (shear rate sweep and stress growth) measurements allowed setting monitoring. The authors discuss experiment results and compare them with the cement paste Vicat Test. The study shows that the Vicat test is less sensitive to cement paste setting evolution than the proposed tests, which provide useful information at an early age.

  • Availability:
  • Authors:
    • Amziane, Sofiane
    • Ferraris, Chiara F
  • Publication Date: 2007

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01049873
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 2 2007 4:25PM