Detecting the Fluid-to-Solid Transition in Cement Pastes

The time of set for concrete is extremely important when scheduling construction operations. The fluid-to-solid transition that occurs during setting is crucial in assessing practical construction operations, such as finishing, sawcutting, and curing, and determining when test procedures such as early-age shrinkage measurements should be initiated. The solidification of cementitious mixtures can be identified using a variety of techniques. Each of the investigated techniques indicates that solidification occurs after a similar time period and contributes to a more detailed understanding of the fluid-to-solid transition. In this article, the interpretation of results of each technique is described from a fundamental viewpoint, along with additional insight into the behavior of concrete that the techniques help explain or illustrate. Details of the investigated test methods can be found in a companion paper available with the online version of this article at www.concreteinternational.com.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/4163061
• Authors:
  • Sant, Gaurav
  • Dehadrai, Mukul
  • Bentz, Dale P
  • Lura, Pietro
  • Ferraris, Chiara F
  • Bullard, J W
  • Weiss, William Jason
• Publication Date: 2009-6

Language

• English

Media Info

• Media Type: Print
• Features: Figures;
• Pagination: pp 53-58
• Serial:
  • Concrete International
  • Volume: 31
  • Issue Number: 6
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0162-4075

Subject/Index Terms

• TRT Terms: Cement; Cement paste; Concrete curing; Curing and setting agents; Setting (Concrete); Shrinkage
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01130531
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 22 2009 2:01PM