SHRINKAGE OF HARDENED CEMENT PASTE AT TEMPERATURES UP TO 670 C (1238 F)

The transient and ultimate shrinkage behavior of unsealed hardened cement paste of water-cement ration (w/c)=0.3 was investigated for maximum exposure temperatures up to 670 C (1238 F) and a heating rate of 1 C/min (1.8 F/min). The shrinkage phase, the duration of which was dependent on the maximum exposure temperature, was modeled mathematically using a combined logarithmic and exponential expression. The amount of shrinkage experienced and the temperature at which the trend of increasing ultimate shrinkage is reversed was found to depend on the w/c ratio.

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00495266
  • Record Type: Publication
  • Report/Paper Numbers: Title No. 87-M22
  • Files: TRIS
  • Created Date: Jul 31 1990 12:00AM