Investigating the Effects of Curing Methods on the Compressive Strength of Bitublock

The effects of fluctuating temperatures on the setting times of concrete mixtures made with different water-to-cement ratios, supplementary cementing materials (SCMs), and SCM dosages are evaluated in this paper. Initial and final set times of the concrete were determined with penetration resistance testing. Wet-sieved mortar samples were placed in hot and cold water baths that cycled over 24 h between temperature ranges of 32–41°C and 4–13°C, respectively. The control samples were cured at temperatures between 20 and 24°C. Results show that Class F fly ash will slightly retard setting, ground granulated blast furnace slag will slightly accelerate setting, and Class C fly ash will significantly increase setting times. It is shown that the equivalent age maturity method may be used to estimate setting times of concrete samples cured under fluctuating temperatures. Activation energy values are recommended for use with the equivalent age maturity method to predict setting.

  • Availability:
  • Authors:
    • Forth, J P
    • Dao, D V
    • Zoorob, S E
  • Publication Date: 2010-3

Language

  • English

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Filing Info

  • Accession Number: 01154927
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 10 2010 12:53PM