Optimizing Mississippi Aggregates for Concrete Bridge Decks

American Association of State Highway and Transportation Officials (AASHTO) M 43 “Standard Specification for Sizes of Aggregate for Road and Bridge Construction” addresses particle size distribution of material included in various maximum nominal size aggregates. This particle size distribution requires additional processing such as screening, separating, and recombining to Mississippi Department of Transportation’s (MDOT's) particle size distribution requirements. Specifiers of concrete mixtures have utilized additional requirements on aggregates by placing upper and lower limits on combined percent retained on individual sieves. MDOT has recently utilized this concept by introducing similar limits on aggregate gradations used in concrete for bridge decks. This research project investigates the workability and shrinkage performance of concrete containing aggregate gradations not meeting these requirements and compares this performance to concrete containing aggregate gradations meeting MDOT’s requirements for bridge decks.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 242p

Subject/Index Terms

Filing Info

  • Accession Number: 01493305
  • Record Type: Publication
  • Report/Paper Numbers: FHWA/MS-DOT-RD-12-231, MS-DOT-RD-12-231
  • Contract Numbers: Project No. 105803 153000; FMS 106172-101000
  • Files: TRIS, ATRI, USDOT, STATEDOT
  • Created Date: Sep 12 2013 11:40AM