The methods of non-destructive testing of positioning of metallic dowel bars in joints of rigid pavements

published:
Number: Issue 24(2021)
Section: Construction and civil engineering
The page spacing of the article: 72–83
Keywords: detection, rigid pavement, dowel bar misalignments, metallic dowel bar, transverse joint
How to quote an article: Tatyana Tereshchenko. The methods of non-destructive testing of positioning of metallic dowel bars in joints of rigid pavements. Dorogi і mosti [Roads and bridges]. 2021. Iss. 24. P. 72–83 [in Ukrainian].

Authors

State Enterprise «National Institute for Development Іnfrastructure» (SE «NIDI»), Kyiv, Ukraine
https://orcid.org/0000-0001-5206-9921

Summary

Introduction. In the world-wide practice on construction of rigid road pavements significant attention has been given to jointed plain concrete pavements (JPCP) with transverse joints strengthened by dowel bars. Performance of JPCP is sufficiently affected by right alignment and location of dowel bars thereby the methods of non-destructive testing of dowel bar positioning have been gain in great importance. This paper represents analytical review of methods of non-destructive testing of dowel bar alignment and location emphasizing an attention on standard method using magnetic pulse induction which is applicable to testing of metallic bar position in concrete pavements.

General Part. In the general part of this paper, several main aspects of reviewed test method were analyzed:

  • the classification of dowel bars misalignment and their impact on pavement performance;
  • the comparison of implemented methods of non-destructive testing of dowel bar positioning;
  • possibilities of method of magnetic impulse induction and an approach to analytical evaluation of transverse joints dowel bar misalignment using magnetic image tomography;
  • the usage of results of testing of transverse joints dowel bar position to eliminate dowel bars misalignment;
  • examples of predictive estimation of results of testing of transverse joints dowel bar position and their impact on performance of JPCP.

The reviewed method of testing and test results estimation concerns practice on application of two levels of performance (e.g. acceptable level and rejectable level) to evaluate the performance of each individual dowel bar or each doweled transverse joint and also a section of rigid road pavement with several consecutive transverse joints with restricted performance.

Conclusions.

1. World-wide implemented standard method of non-destructive testing of dowel bar alignment and location allows to detect and to eliminate dowel bars misalignment thus ensuring required load transfer efficiency and international roughness index of rigid road pavements. The estimation of road pavement sections with several consecutive joints considering each joint performance allows to ensure the designed service life of road pavement.

2. Standard method of non-destructive testing of dowel bar alignment and location for transverse joints of rigid road pavement using magnetic pulse induction developed by American Society for Testing and Materials assures high precision of measurement of metallic bar position in doweled bar of concrete pavement joints and enables to detect five types of dowel bar misalignment.

3. In connection with the intensification of issues on construction of rigid road pavements in Ukraine as well as the high importance of the considering test method, an important task should be the development and implementation of an appropriate national standard.

References

  1. L. Rens. Guide for Design of Jointed Plain Concrete Pavements, European Concrete Paving Association (EUPAVE), Publ. by EUPAVE, Brussels, Belgium, 2020, 40 p. URL: http://www.eupave.eu/wp-content/uploads/EUPAVE-Guide-for-the-design-of-jointed-plain-concrete-pavements-April-2020.pdf (Last accessed: 13.07.2021).
  2. Dowel Bar Alignment and Location, ACPA (American Concrete Pavement Association) Guide Specification, 2018, 18 p. URL: http://www.acpa.org (Last accessed: 07.07.2021).
  3. H.T. Yu, S. Tayabji. Best Practices for Dowel Placement Tolerances, FHWA-HIF-07 021, CPCP (Concrete Pavement Technology Programm) TechBrief, US Department of Transportation, FHWA (Federal Highway Administration) 2007, 6 p. URL: http://www.fhwa.dot.gov/pavement/concrete/pubs/07021/07021.pdf (Last accessed: 07.07.2021).
  4. L. Khazanovich, K. Hoegh, M. Snyder. Guidelines for Dowel Alignment in Concrete Pavements. NCHRP Report 637, TRB (Transportation Research Board), Washington, DC, 2009, 58 p. URL: https://www.trb.org (Last accessed: 06.07.2021).
  5. C. Amer-Yahia, T. Majidzadeh. Approach to Identify Misaligned Dowel and Tie Bars in Concrete Pavements Using ground Penetrating Radar. Case Studies in Non-Destructive Testing and Evaluation, 2014, 2, pp. 14 - 26. URL: https://www.sciencedirect.com (Last accessed: 14.07.2021).
  6. M. Snyder. Guide for Dowel Load Transfer Systems for Jointed Concrete Roadway Pavements, National Concrete Consortium, National Concrete Pavement Technology Center, Iowa State University, 2011, 37 p. URL: http://www.publications.iowa.gov/11987/1/DowelLoadGuide.pdf (Last accessed: 07.07.2021).
  7. DSTU ASTM A510/A510M:2021 (ASTM A510/A510M-18, IDT) Katanka ta drit kruhlyy neobroblenyy z vuhletsevoyi ta lehovanoyi stali. Tekhnichni umovy (Standard Specification for general requirements for wire rods and coarse round wire, carbon steel and alloy steel) Kyiv, 2021.
    7 p.
  8. DSTU ASTM A615/A615M:2019 (ASTM A615/A615M-16, IDT) Prokat hladkoho ta periodychnoho profilyu z vuhletsevoyi stali dlya armuvannya betonu. Tekhnichni vymohy (Deformed and plain carbon-steel bar for concrete reinforcement. Technical requirements). Kyiv, 2019. 14 p.
  9. S. Rao, L. Premkumar. Long-Term Pavement Performance Data Analysis Program: Effect of Dowel Misalignment on Concrete Pavement Performance, Turner-Fairbank Highway Research Center, 2020, Publication No FHWA-HRT-20-070, 120 p. URL: http://www.fhwa.dot.gov/publications/research/infrastructure/pavements/ltpp/20070/20070.pdf (Last accessed: 07.07.2021).
  10. A.K. Kiwi. Dowel Bar Alignment in Concrete Pavements: 21st Century Standards and Methods Transportation Association of Canada (TAC) Conference & Exhibition, 2020, session “Innovations in Pavement Management, Engineering and Technologies”, 18 p. URL: http://www.tac-atc.ca/sites/default/files/conf_papers/kivia_dowel_bar_alignment.pdf (Last accessed: 13.07.2021).
  11. Evaluation and Optimizing Dowel Bar Alignment, Concrete Pavement Research and Technology Special Report, Publication SR999P. American Concrete Pavement Association, Skokie, Il., August 2006, 8 p. URL: http://www.countonconcrete.org/wp-content/uploads/2016/11/SR999P.pdf (Last accessed: 14.07.2021).
  12. Concrete Pavement Joints. Technical Advisory. FHWA Publication T 5040.30. US Department of Transportation, FHWA (Federal Highway Administration) 2019, 48 p. URL: http://www.fhwa.dot.gov/pavement/ta504030.pdf (Last accessed: 08.07.2021).