Self curing admixture performance report.

Details

• Creators:
  Anderson, Darryl ; DiBrito, Bill
• Corporate Contributors:
  Oregon. Department of Transportation
• Subject/TRT Terms:
  • Concrete curing
  • Curing agents
  • High strength concrete
  • Concrete bridges
  • Bridge design
  • Bridge construction
  • Concrete--Curing--Oregon
  • High strength concrete bridges--Oregon--Design and construction--Safety measures
• Publication/ Report Number:
  OR-RD-12-10
• Resource Type:
  Tech Report
• Geographical Coverage:
  Oregon
• Edition:
  Final report.
• Corporate Publisher:
  Oregon. Dept. of Transportation
• Abstract:
  The Oregon Department of Transportation (ODOT) has experienced early age cracking of newly placed high performance ; concrete (HPC) bridge decks. The silica fume contained in the HPC requires immediate and proper curing application after ; placement to avoid early age cracks. Many construction contractors do not consistently apply adequate curing procedures, ; and project sites may not have easy access to water. This problem led ODOT to investigate a self-curing admixture (SCA) ; for bridge deck concrete mixes. The SCA reduces wet curing requirements by counteracting to some degree water loss due ; to evaporation. An admixture in place of wet curing that allows HPC bridge deck concrete to cure properly without early ; age cracking and without decreasing other performance requirements would provide another option for contractors. The ; study showed that concrete with the SCA after a 3-day wet cure can produce similar results to standard HPC concrete with a ; 14-day wet cure. However, the concrete additives in the concrete must be compatible with the SCA
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24073/dot_24073_DS1.pdf
• File Type:
  [PDF - 2.77 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:1ada8143e2bebd3da71b723da846759e97d107c1b73b328f1e9f4b32d6bfab93584d78d9c7156716c1ff7d30bf3e30ead9c85feab77daa7c3adea8045c0d464a