Mechanical Properties of Concrete Pavement Mixtures with Larger Size Coarse Aggregate

The use of larger maximum size aggregates (MSA) in concrete mixtures can increase the load transfer efficiency across aggregate interlock joints if small crack widths are achieved. Aggregate interlock joints can minimize the number of dowels required on airport and low volume concrete pavements, and thus decrease their total construction cost. This paper describes a laboratory study evaluating the strength, fracture, and shrinkage properties of airport concrete mixtures with 1 and 1.5 inch MSA and several total cementitious contents. Although the split tensile and flexural strength of the larger MSA mixtures were reduced by 20 percent, the 28-day fracture energy was similar between the mixtures. The 1-day GF was significantly greater for the larger MSA mixture indicating a greater joint shear transfer capability. The brittleness of the concrete was also reduced as the MSA increased. Finally, the concrete free shrinkage was similar for the same mix proportions but different MSA.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0784408386
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Roesler, Jeffery R
  • Gaedicke, Cristian
  • Lange, David A
  • Vlllalobos, Salvador
  • Rodden, Robert
  • Grasley, Zachary C
• Conference:
  • Airfield and Highway Pavements. The 2006 Airfield and Highway Pavement Specialty Conference
  • Location: Atlanta GA, United States
  • Date: 2006-4-30 to 2006-5-3
• Publication Date: 2006

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 516-527
• Monograph Title: Airfield and Highway Pavements: Meeting Today’s Challenges with Emerging Technologies

Subject/Index Terms

• TRT Terms: Admixtures; Aggregates; Airport runways; Concrete pavements; Fracture properties; Life cycle costing; Low volume roads; Mechanical properties; Mix design; Shrinkage
• Uncontrolled Terms: Pavement mixtures
• Subject Areas: Aviation; Design; Finance; Geotechnology; Highways; Pavements; Terminals and Facilities; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 01037776
• Record Type: Publication
• ISBN: 0784408386
• Files: TRIS
• Created Date: Dec 1 2006 8:10AM