Control Guidelines for Aggregate Drainage Layers and Evaluation of In Situ Permeability Testing Methods for Aggregates

Details

• Creators:
  Garzon-Sabogal, Luis ; Getchell, Amy ; Bourdeau, Philippe L ; Becker, Peter J. ; Santagata, Marika
• Corporate Creators:
  Purdue University. Joint Transportation Research Program
• Corporate Contributors:
  Indiana Department of Transportation ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Aggregates Compaction Drainage Guidelines Pavement Layers Permeability Quality Assurance Test Procedures
• Publication/ Report Number:
  FHWA/IN/JTRP-2024/28
• DOI:
  https://doi.org/10.5703/1288284317769
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States;Indiana
• Edition:
  Final Report
• Corporate Publisher:
  Purdue University. Joint Transportation Research Program
• Abstract:
  This project examined the use of the light weight deflectometer (LWD) and the air permeameter test (APT) for control of the state of compaction and hydraulic conductivity of aggregate drainage layers. The investigation included an extensive program of LWDs, APTs, and nuclear density tests on two testing strips constructed at an experimental site—one on an untreated subgrade and the other on cement-treated subgrade. The project also included additional field tests at three construction sites in Indiana and a laboratory testing program for calibration and validation of the field data. Statistics and correlation studies of the collected data are presented and serve as a basis for assessing the testing methods and the influence of statistical sample size on the reliability of QA/QC outputs. The main outcomes address the spatial variability in the measured properties, the evaluation of materials and methods used to construct the strips, and the methods used for characterizing the layers. These findings highlight opportunities for assessing uncertainty, as measured by the dispersion of the data as part of a QA/QC campaign, and for reformulating guidelines in probabilistic terms.
• Format:
  PDF
• Funding:
  SPR-4327
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:99e08b12543c7804c84e665f099ff0eaca83d63556af2cafa8b333b43c97ca782a5c00f60fa77ad0b7ebb48c34797f996291c8d87395c6cad4f3250cddb37fd3
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/84940/dot_84940_DS1.pdf
• File Type:
  [PDF - 24.66 MB ]