Evaluation of acceptance strength tests for concrete pavements.

Details

• Creators:
  Picornell-Darder, Miguel ; Chen, Jiann-Long
• Corporate Creators:
  North Carolina Agricultural and Technical State University. Department of Civil Engineering
• Subject/TRT Terms:
  • Flexural strength
  • Compressive strength
  • Modulus of rupture
  • Acceptance tests
  • Nondestructive tests
  • Pavements, Concrete--North Carolina--Testing
  • Nondestructive testing
• Publication/ Report Number:
  FHWA/NC/2006-10
• Resource Type:
  Tech Report
• Geographical Coverage:
  North Carolina
• Edition:
  Final report; July 1, 2003-June 30, 2005.
• Corporate Publisher:
  North Carolina. Department of Transportation. Research and Analysis Group
• Abstract:
  The North Carolina Department of Transportation has used traditionally flexural strength tests for acceptance ; testing of Portland cement concrete pavements. This report summarizes a research project implemented to ; investigate the feasibility of using other strength tests and nondestructive tests, to accomplish the same objective ; of ensuring an adequate modulus of rupture of the slab but avoiding or reducing the need to perform a large ; number of flexural strength determinations for acceptance testing. The present work has been laid around using ; a nondestructive test (a resonant column) to measure a seismic modulus that is used as a rating tool to evaluate ; the repeatability of duplicate specimens before the specimens are strength tested. This has been accomplished ; by developing regression lines and confidence and prediction intervals for the correlation of the seismic ; modulus to flexural, splitting tension, and compressive strength test. All these test show strong correlation ; coefficients and, thus, all have the possibility to be used in the prediction of flexural strength. The report ; suggests a new process for acceptance testing based on using a combination of compressive strength and ; seismic modulus. The selection of compression testing is based on the perceived know-how of the personnel of ; NCDOT throughout the State.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/17176/dot_17176_DS1.pdf
• File Type:
  [PDF - 1.73 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:8da42bfdfe30a0dca2aa84a41acf855db1cb2b655961e742bc551b8731328613