ultrasonic spectroscopy.

Details

• Alternative Title:
  Accelerated determination of ASR susceptibility during ; concrete prism testing through nonlinear resonance acoustic spectroscopy ; acoustic spectroscopy
• Creators:
  Lesnicki, Krzysztof J. ; Kim, Jin-Yeon ; Kurtis, K. E.
• Corporate Creators:
  Georgia Institute of Technology
• Corporate Contributors:
  United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development
• Subject/TRT Terms:
  • Alkali silica reactions
  • Ultrasonics
  • Spectroscopy
  • Acoustics
  • Resonance
  • Concrete tests
  • Vibration tests
• Publication/ Report Number:
  FHWA-HRT-13-085
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Federal Highway Administration. Office of Infrastructure Research and Development
• Abstract:
  "Accurate, reliable, and timely laboratory assessment of concrete mixtures—aggregates combined with ; cementitious materials—is a critical component in ensuring the durability of concrete infrastructure from the ; adverse effects of the alkali-silica reaction (ASR). Currently, the “Concrete Prism Test” (ASTM C1293) is the ; most reliable standard test method for assessing the suitability of materials and materials combinations for ; resistance to damage by ASR. However, the main drawback of this method is the 1- to 2-year duration required ; for the test. This research study evaluates a new nonlinear acoustic technique for characterization of ASR damage ; in standard concrete prism specimens. Nonlinear impact resonance acoustic spectroscopy offers a fast and ; reliable measurement of the material nonlinearity. Microstructural changes that occur as a result of ASR cause an ; increase in the measured nonlinearity, which can be used as a measure of the amount of ASR-induced damage. ; This study evaluates 10 concrete mix designs with varying ASR reactivity. Both standard expansion tests and ; nonlinearity measurements are performed on the specimens. This report presents the results of those tests to ; illustrate the utility of the new method as a complementary technique for damage assessment of laboratory ; concrete prisms specimens."
  More +
• Format:
  PDF
• Funding:
  DTFH61-08-R-00010
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/26783/dot_26783_DS1.pdf
• File Type:
  [PDF - 3.79 MB]
• Collection(s):
  Federal Highway Administration ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:6ed0cab9b7eeea02ce6ba579e9b8009729b83fcb94db9425f9b494aaffd98d43307313e78b5eab8400d7399a43faf45b10fa2a8635b474e118329b28cc0f9321