Effects of curing methods and supplementary cementitious material use on freeze thaw durability of concrete containing d-cracking aggregates.

Details

• Creators:
  Riding, Kyle A ; Blackwell, Brett ; Momeni, Amir Farid ; McLeod, Heather
• Corporate Creators:
  Kansas State University. Transportation Center
• Subject/TRT Terms:
  • Concrete pavements
  • Service life
  • Freeze thaw durability
  • D cracking
  • Test procedures
  • Limestone aggregates
  • Concrete curing
  • Permeability
  • Air voids
  • Durability tests
• Publication/ Report Number:
  K-TRAN: KSU-11-2
• Resource Type:
  Tech Report
• Geographical Coverage:
  Kansas
• Corporate Publisher:
  Kansas. Dept. of Transportation. Bureau of Materials & Research
• Abstract:
  For concrete pavements in Kansas, the most effective method of increasing their sustainability is to ; increase the service life. One of the principle mechanisms of concrete pavement deterioration in Kansas is ; freezing and thawing damage. Some Kansas limestone aggregates are known to be very susceptible to Dcracking ; and have resulted in millions of dollars in maintenance costs. The Kansas Department of ; Transportation (KDOT) has developed rigorous testing procedures for limestone aggregate use in concrete. ; In this study, the role of concrete curing, mixture proportioning, and aggregate type on the freeze thaw ; durability of concrete beams tested using ASTM C 666 method B were investigated. This study found that ; long periods of soaking in lime water produced more damage during freezing and thawing than standard ; KDOT curing methods. Curing for shorter period of time in a lime water bath at 100°F however gave ; comparable freeze thaw results to that seen with the longer standard KDOT curing regime. Increasing the ; concretes resistance to water penetration can greatly increase the freeze thaw durability of concrete ; containing D-cracking susceptible aggregates. It was seen that the concrete volume of permeable voids and ; water absorption rate correlated well with the freeze thaw durability of concrete made with a poor quality ; aggregates. It is recommended that KDOT continue to enforce concrete permeability and volume of ; permeable voids specifications to improve the service life of Kansas concrete pavements.
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• Format:
  PDF
• Funding:
  C1876
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/26815/dot_26815_DS1.pdf
• File Type:
  [PDF - 2.25 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:4341737f1e1697a4249c899f07cd1a7ffb392a907ffbd1838965fc0a6de2c0db0f55dcd999485d00e289b608caed381dc3cffa4ccd19582600b13760a581c4e3