Accelerated curing and strength-modulus correlation for lime-stabilized soils : final report, January 2010.

Details

• Creators:
  Mooney, Michael A. ; Toohey, Nathan M.
• Corporate Creators:
  Colorado School of Mines
• Corporate Contributors:
  Colorado. DTD Applied Research and Innovation Branch ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Mechanical properties by mathematical limits or values
  • Concrete curing
  • Soil lime mixtures
  • Stabilized materials
  • Soil stabilization
  • Compression tests
  • Compressive strength
  • Liming of soils
  • Soils--Curing
  • Soil stabilization--Colorado--Testing
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• Publication/ Report Number:
  CDOT-2010-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Colorado
• Edition:
  Final.
• Corporate Publisher:
  Colorado. Dept. of Transportation
• Abstract:
  This study sought to identify the equivalent 105°F curing duration for lime-stabilized soil (LSS) that will ; yield the equivalent unconfined compressive strength (UCS) to that resulting from 28-day, 73°F curing. Both ; 5-day and 7-day 105°F (or 100°F) curing have been used in practice. The study also sought to characterize the ; relationship between resilient modulus (Mr) and UCS for LSS soils, since the prevailing correlation between ; Mr and UCS for LSS – based on Thompson (1966) – was not developed from cyclic loading and has been ; validated with only limited data. The study revealed that the 5-day, 105°F accelerated curing yielded UCS ; values more representative of 28-day 73°F UCS than did the 7-day, 105°F curing regime. However, there is ; no universal equivalent accelerated curing duration for LSS; therefore, 5-day 105°F curing can yield ; erroneous estimates of 28-day 73°F UCS. The study recommends verification of the equivalent 105°F curing ; duration for each LSS to gage the most representative accelerated curing duration. Based on experimental Mr ; – UCS data, the relationship Mr (ksi) = 0.124 UCS (psi) + 9.98 was found to be conservative in its prediction ; of Mr from UCS.
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• Format:
  PDF
• Funding:
  80.26
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/17606/dot_17606_DS1.pdf
• File Type:
  [PDF - 2.52 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:82cb824c29ad02b41455727baeb5f83b9656c268949177b5d46766e8a7badcb0