Development of a specification for flexible base construction.

Details

• Creators:
  Epps, Jon ; Sebesta, Stephen ; Hewes, Bailey ; Sahin, Hakan ; Luo, Rong ; Button, Joe ; Lytton, Robert ; Herrera, Caroline A. ; Hatcher, Ronald ; Gu, Fan
• Corporate Creators:
  Texas A&M Transportation Institute
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Flexible pavements
  • Base course (Pavements)
  • Mix design
  • Quality control
  • Quality assurance
  • Specifications
  • Pavement performance
• Publication/ Report Number:
  FHWA/TX-13/0-6621
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Corporate Publisher:
  Texas. Dept. of Transportation. Research and Technology Implementation Office
• Abstract:
  The Texas Department of Transportation (TxDOT) currently uses Item 247 “Flexible Base” to specify a ; pavement foundation course. The goal of this project was to evaluate the current method of base course ; acceptance and investigate methods to replace materials approval based on stockpile sampling and testing ; with a mixture design methodology and quality control procedure. Researchers gathered existing information ; that would assist in defining the types of tests to be used, specification acceptance criteria, and acceptance ; limits. Researchers then gathered data to identify tests that should be considered for inclusion in the ; specification and defined property variability of base course materials from nine pits/quarries in Texas. They ; also conducted other activities concerning precision and bias statement development, production/placement ; variability, technician certification, laboratory accreditation, and the development of relationships that allow ; test property parameters to predict pavement performance. The project developed draft flexible base course ; specifications in a quality control/quality assurance and quality monitoring program format. Researchers ; recommend an implementation project to determine the accuracy of the developed pavement performance ; prediction techniques and the suitability of the specification, including the types and limits of the test ; parameters in the specification.
  More +
• Format:
  PDF
• Funding:
  Project 0-6621
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/26882/dot_26882_DS1.pdf
• File Type:
  [PDF - 5.25 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:7c5b6c0d91368c42b45a6a298ef302ff1826917c74cdc6e1ee7c0ca977cebb0a