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:
  Air Voids Concrete Curing Concrete Pavements D Cracking Durability Tests Freeze Thaw Durability Limestone Aggregates Permeability Service Life Test Procedures
• 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.
  
  
• Format:
  PDF
• Funding:
  C1876
• Collection(s):
  University Transportation Centers US Transportation Collection
• Main Document Checksum:
  urn:sha-512:4341737f1e1697a4249c899f07cd1a7ffb392a907ffbd1838965fc0a6de2c0db0f55dcd999485d00e289b608caed381dc3cffa4ccd19582600b13760a581c4e3
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/26815/dot_26815_DS1.pdf
• File Type:
  [PDF - 2.25 MB ]