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Evaluation of seismic testing for quality assurance of lime-stabilized soil.

File Language:
English


Details

  • Creators:
  • Corporate Creators:
    Colorado School of Mines
  • Corporate Contributors:
    United States. Federal Highway Administration
  • Subject/TRT Terms:
  • Publication/ Report Number:
    CDOT-2013-15
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    Colorado
  • Corporate Publisher:
    Colorado. Dept. of Transportation. Research Branch
  • Abstract:
    This study sought to determine the technical feasibility of using seismic techniques to measure the

    laboratory and field seismic modulus of lime-stabilized soils (LSS), and to compare/correlate test results

    from bench-top (free-free resonance) seismic testing on LSS cylinders to in-situ (surface seismic) testing

    performed on field-constructed LSS. In addition, this research sought to develop a pilot specification for

    quality assurance of LSS using seismic test methods. The growth of modulus was found to vary as a nonlinear function of both temperature and curing time. Differences in modulus growth between free-free

    resonance (LSS cylinders) and surface wave (field-constructed LSS) data can be attributed to constructionrelated issues, and are not the result of testing equipment/practice. The study supports the recommendations

    of the CDOT specification for LSS (Section 307) in that grading should be performed immediately after

    construction as grading conducted on later days (i.e., days 4-8) resulted in significant seismic modulus loss

    on field-constructed LSS.

    Implementation

    This study recommends the use of seismic testing for QA of LSS via the pilot specification developed in

    Chapter 5 of this report. The specification allows for the use of either cylinder or surface wave testing to

    determine the seismic modulus of field-constructed LSS. It is written in a manner that allows CDOT

    personnel to implement the proposed approach.

  • Format:
    PDF
  • Funding:
    80.3
  • Collection(s):
  • Main Document Checksum:
    urn:sha256:5c6bd0571e7f31cafdfadfbf333dbf2744364cadadb4f75b2f5535608ae1af37
  • Download URL:
  • File Type:
    Filetype[PDF - 7.44 MB ]
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