Quality audit for concrete constructions

Audit involves official inspection of an organization account typically by an inspecting body. In respect of concrete structures it will mean a critical inspection of concrete structures, ascertain damages, distresses and defects appearing during construction or in service life. The author had an occasion to inspect more than 100 concrete structures which developed either problems during construction or during service life. If these are summarized subject wise, the main issues are as follows: A concrete structure is subjected to the effects of water, disturbances in the earth, such as settlements and earthquakes, the effects of wind and environmental effects. In ancient Vastushastra there used to be a prayer at the foundation ceremony and even at the completion of the work stating that "Let the God of Rains (Varuna) protect this Vastu, let the earth on which Vast is laid protect it from destruction, let the effect of wind and let the God of Environment protect this structure." In the concrete structures which developed some defects, the following main issues cropped up: 1) Erosion and cavitations of bridge piers and foundations due to high velocity; 2) Damage of concrete in buildings and bridges due to Alkali-Silica Reaction (ASR) or Delayed Ettrigingite Formation (DEF); 3) Plastic Shrinkage in the newly laid concrete due to lack of appropriate curing; 4) Inappropriate construction methods; 5) In respect of Aqueduct damage caused by failure of joints and rubbing of canal water containing sand and pebbles on the bottom surface of the ducts are seen; 6) Wrong procedure of well sinking and instances of well sinking in rock.

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  • Supplemental Notes:
    • Abstract reprinted with permission from the publisher.
  • Authors:
    • Kand, C V
  • Publication Date: 2013-5

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; Photos; References; Tables;
  • Pagination: pp 25-39
  • Serial:
    • Indian Highways
    • Volume: 41
    • Issue Number: 5
    • Publisher: Indian Roads Congress
    • ISSN: 0376-7256

Subject/Index Terms

Filing Info

  • Accession Number: 01483057
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 3 2013 11:27AM