Geomechanical and Mineralogical Properties of Limestone Samples from Kansas – Joint Project with KU

Aggregates have broad practical applications, particularly for concretes, hot mix asphalts, aggregate base construction, cement treated and granular bases, backfill, cover materials, microsurfacing, subgrade modification or reconstruction, surfacing or resurfacing, shoulder construction, and riprap and ditch lining. Although understanding geomechanical and mineralogical properties of aggregates are essential for many projects, our knowledge on crushed samples are very limited due to lack of experiments. In fact, the uniaxial/triaxial measurement of Young’s modulus on core samples has been standardized over decades and now is very straightforward (ASTM, 2017). Nonetheless, Young’s modulus measurement on rocks is time consuming, and various studies were conducted to link Young’s modulus to other rock properties routinely measured, such as porosity (Alison, 1987), clay content (Tutuncu, 1992), and permeability (Bossennec et al., 2018). Determining Young’s modulus on cutting size samples is, however, rare in geotechnical engineering because of experimental challenges. The research team, therefore, proposes applying a promising method from petroleum engineering developed by Mews et al. (2020) based on atomic force microscopy that was successfully evaluated on clay-rich carbonate rocks. Using the atomic force microscopy, Mews et al. (2020) determined Young’s modulus and Poisson’s ratio on a carbonate sample equal to 53.23 GPa and 0.25 very close to 51.5 GPa and 0.26 measured via triaxial experiments.

Language

• English

Project

• Status: Active
• Funding: $76816
• Contract Numbers:

  RE-0887-01

  C2220

• Sponsor Organizations:

  Kansas Department of Transportation

  Eisenhower State Office Building
  700 SW Harrison Street
  Topeka, KS  United States  66603-3754
• Performing Organizations:

  Kansas State University Transportation Center

  Kansas State University
  Department of Civil Engineering
  Manhattan, KS  United States  66506
• Principal Investigators:

  Ghanbarian, Behzad

• Start Date: 20230613
• Expected Completion Date: 20250531
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Aggregates; Geophysics; Limestone; Mechanical properties; Microscopy; Mineralogy; Young's modulus
• Geographic Terms: Kansas
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 01894771
• Record Type: Research project
• Source Agency: Kansas Department of Transportation
• Contract Numbers: RE-0887-01, C2220
• Files: RIP, STATEDOT
• Created Date: Sep 27 2023 12:17PM