Conceptual Approaches for Considering Shrinkage Cracking in the Cement Stabilized Pavement Mix Design

The purpose of this paper is to present the finding of a study that examined conceptual approaches for incorporating shrinkage cracking in the mix design of cement stabilized pavements. Many assumptions were made due to lack of factual data on shrinkage of stabilized materials under variable climatic conditions. The field pavement behavior was idealized so that it achieves an equilibrium moisture content beyond which the pavement moisture content fluctuates seasonally around this equilibrium value. The effective strain was defined as the free shrinkage minus the creep strain, which is an important component in shrinkage of cemented materials. The concept of cracking potential was introduced quantitatively, which was then used to compute the cracking severity giving crack spacing and likely crack widths. The study discusses three different levels of approaches, depending on their sophistication. The Level 3 approach, which is amenable to routine calculations, was elaborated in some detail on the basis of the author’s research on this topic. The application of Level 3 approach was elaborated using a hypothetical example. Further research is needed to make the conceptual approaches reliable for application to mix design of cement stabilized pavement materials.

• Record URL:
  • http://arrbknowledge.com
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/1876592494
• Corporate Authors:

  ARRB

  Melbourne, Victoria  Australia 
• Authors:
  • Kodikara, Jayantha
• Conference:
  • Research into Practice: 22nd ARRB Conference
  • Location: Canberra , Australia
  • Date: 2006-10-29 to 2006-11-2
• Publication Date: 2006

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; References;
• Pagination: 14p
• Monograph Title: Research into Practice: 22nd ARRB Conference Proceedings

Subject/Index Terms

• TRT Terms: Cracking; Cracking of asphalt concrete pavements; Cracking of concrete pavements; Mix design; Moisture content; Pavement cracking; Pavement distress; Pavement performance; Pavements; Shrinkage; Stabilized materials
• Uncontrolled Terms: Cement stabilized base; Shrinkage cracking
• ITRD Terms: 4758: Cement; 8525: Conference; 5211: Cracking; 6226: In situ; 6237: Laboratory (not an organization); 4714: Mix design; 5920: Moisture content; 3055: Pavement design; 3688: Roadbase stabilization; 4743: Shrinkage; 6255: Test
• Subject Areas: Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 01041507
• Record Type: Publication
• ISBN: 1876592494
• Files: TRIS, ATRI
• Created Date: Jan 30 2007 1:31PM