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Quality Impairments in Flexible Road Pavements

In: Quality Control - An Anthology of Cases

Author

Listed:
  • Samuel I. I. Egwunatum
  • Ovie I. Akpokodje
  • Andrew I. Awo-Osagie

Abstract

The purpose of this chapter is to present the reader with the physical processes of how flexible road pavements progressively fail and impair the quality of finished roads arising from non-adherence to roads construction quality outlines and requirements. This was achieved by investigating eight (8) roads from a sample of nineteen (19) roads based on purposive sampling. Using instruments of steel tapes, paints for failed sections, rolling rule and pictures, measurement of length, width and depth of various failed sections were taken for five (5) daily measurements at three (3) monthly visit intervals for Four Hundred and Thirty Five (435) days to show the rate of deterioration. Data obtained were analyzed for reliability of pavements using Weibull distribution statistics on ReliasoftWeibull++to extrapolate pavement reliability from bathtub function. Findings showed that roads failed progressively within six (6) months after finished construction and deteriorated fast with increased failures on length, depth and width of pavements. The practical implications of this is that the process of construction did not conform with required/stipulated quality control metrics of flexible road construction especially in the areas of geomaterials compaction, temperature and density of materials laid. It was recommended that organization adhere to quality control guidelines and requirements to forestall quality impairment.

Suggested Citation

  • Samuel I. I. Egwunatum & Ovie I. Akpokodje & Andrew I. Awo-Osagie, 2023. "Quality Impairments in Flexible Road Pavements," Chapters, in: Leo Dimitrios Kounis (ed.), Quality Control - An Anthology of Cases, IntechOpen.
    • Handle: RePEc:ito:pchaps:261716
    DOI: 10.5772/intechopen.105697
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    More about this item

    Keywords

    flexible pavement; Weibull test; quality control; quality impairment; deterioration rate; reliability;
    All these keywords.

    JEL classification:

    • L15 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Information and Product Quality

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