Effects of portland cement particle size on heat of hydration : [summary].

Details

• Creators:
  Zayed, Abla
• Corporate Creators:
  University of South Florida
• Subject/TRT Terms:
  Chemical Analysis Fineness Grain Size (Geology) Heat Of Hydration Mineralogy Portland Cement Concrete Shrinkage
• Publication/ Report Number:
  BDK84 977-13
• Resource Type:
  Brief
• Geographical Coverage:
  Florida
• Corporate Publisher:
  Florida. Dept. of Transportation
• Abstract:
  Generally, when materials are heated (or cooled),
  
  they expand (or contract) to a greater or lesser
  
  extent. Even a material as rock-like as concrete
  
  is susceptible to thermal effects, and expansion
  
  joints are used for this reason: to allow concrete
  
  to expand and contract without buckling.
  
  Thermal expansion of concrete is especially
  
  important for concrete poured in massive forms.
  
  Setting concrete generates heat as chemical
  
  components react and form bonds to produce
  
  concrete’s characteristic strength. However,
  
  concrete conducts heat poorly, and the heat
  
  inside a massive pour may take more time to
  
  dissipate than the outer regions, which can cool
  
  faster. Contraction of outer layers over inner
  
  layers can cause cracks, reducing the concrete’s
  
  strength, structural integrity, and service life. The
  
  potential for thermal cracking is increased by high
  
  temperatures, common throughout Florida.
  
  
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:946d79487bb489cfb10189d741cfd5f0b980e16c0fe7de5a4f0dfbe05020ec68
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/26988/dot_26988_DS1.pdf
• File Type:
  [PDF - 805.39 KB ]