Monitoring and Evaluation of Cement Hydration by Semi-Adiabatic Field Calorimetry

This paper describes the use of a recently developed, inexpensive portable semi-adiabatic calorimeter for monitoring cement hydration in concrete and mortar. The calorimeter measures the temperature as a function of time at the bottom of eight individual 3x6 cylinders with concrete or mortar. The measured temperature profile is used to evaluate the overall hydration performance of cementitious mixtures, with special emphasis on the timing and the size of the main hydration exotherms that strongly affect setting and early strength development of cementitious mixtures. Furthermore, a method has been developed for a more precise calculation of “thermal set”, with good correlation to manual set times according to ASTM C403. The field calorimeter is useful to screen the effect of type and dosage of admixtures and supplementary cementitious materials on “thermal” setting times in concrete and mortar.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780870312403
• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Sandberg, J P
  • Liberman, S
• Publication Date: 2007

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; References; Tables;
• Pagination: pp 13-23
• Monograph Title: Concrete Heat Development: Monitoring, Prediction, and Management

Subject/Index Terms

• TRT Terms: Adiabatic conditions; Admixtures; Calorimeters; Cement; Cement mortars; Concrete; Curing agents; Hydration; Monitoring; Mortar; Temperature measurement
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 01054185
• Record Type: Publication
• ISBN: 9780870312403
• Report/Paper Numbers: SP-241-2
• Files: TRIS
• Created Date: Jul 24 2007 10:56AM