Investigation of Optimized Graded Concrete for Oklahoma- Phase 2

Details

• Creators:
  Cook, Marllon D. ; Seader, Nick ; Ley, M. Tyler ; Russell, Bruce W.
• Corporate Creators:
  Oklahoma State University. School of Civil & Environmental Engineering
• Corporate Contributors:
  Oklahoma Department of Transportation. Materials and Research Division ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Aggregate Gradation Aggregate Tests Concrete Mix Design Rheology Shape Slip Form Paving Test Procedures Texture Vibration Tests
• Publication/ Report Number:
  FHWA-OK-15-07
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Oklahoma
• Edition:
  Final Report
• Corporate Publisher:
  Oklahoma. Department of Transportation
• Abstract:
  Optimizing aggregate usage has been a subject widely discussed through the history of concrete. Since aggregates make up over 70% of the volume in a concrete mixture, the aggregate gradation is critical to the strength, workability, and durability of concrete. In practice, there is little quantitative guidance given to practitioners on aggregate proportioning in a mixture to meet the desired performance. The ACI 211 Mixture Design Procedure may be the most widely taught mixture design method, but still is not widely used in practice due to limitations with the method. In fact, the ACI 211 method only contains a handful of aggregate parameters that many argue about the validity. One of the largest obstacles preventing the development of aggregate parameters and guidance comes from only a few test methods that are capable of providing quantitative data about the workability of concrete. This work focused on creating practical test methods and using them to understand how the aggregate gradation changes the workability of concrete.
• Format:
  PDF
• Funding:
  2253
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:da1fd1b7189423a876a65c24a6e386909fe862430cde23120fa50e88b50f6fb6721abab553f34d43869f2f2ac728d460012076285961d0320d8b44541dc497b1
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/89160/dot_89160_DS1.pdf
• File Type:
  [PDF - 5.52 MB ]