Using Polyurethane Coating of Concrete Pipes with Acid Attack Resistance in Sewer Lines

  • Authors

    • Alhassan H. Ismail
    • Basim Sh. Abed
    2018-11-28
    https://doi.org/10.14419/ijet.v7i4.20.25861
  • acid attack, coating, concrete pipes, corrosion, polyurethane, sewer, weight loss.

  • Abstract

    One of the most important challenges facing the designers of the sewerage system is the corrosion of sewers due to the influence of sewerage contaminates which lead to failure of the main lines of sewers. In this study, a reference mix of 1: 1.5: 3 was used and the 4% Flocrete PC200 by weight of cement was added to the same mixing ratio in the second mixture. Twenty-four samples were tested for each mixture, 12 of which were used to compression strength test in ages (7, 14 and 28) day and six samples were submerged after 28 days of wet treatment at (5 and 10) % concentrations of sulfuric acid. The other six samples were painted after 28 days of wet treatment with coating Polyurethane and after 24 hours were flooded with a concentration of (5 and 10) % of sulfuric acid. The results showed that the specimens coated with polyurethane paints, whether they were referenced or added 4% Flocrete PC200, were very high resistance to corrosion, where the weight loss ratio was 0%. 

     

     

     

  • References

    1. [1] Attiogbe K., E., and Rizkalla H., S., (1988), "Response of concrete to sulfuric acid attack" ACI Materials Journal, PP 481-488.

      [2] Bowlus, F., D., and Banta A., P., (1932), "Control of anaerobic decomposition in sewage transportation", Water Works Sewerage, 79 (11) 369.

      [3] Cho, K., S., and Mori, T., (1995), "A newly isolated fungus participates in the corrosion of concrete sewer pipes", Water Science and Technology, 31(7) 263-271.

      [4] Gu, J., D., Ford, T., E., et al. (1998), "Biodeterioration of concrete by the fungus fusarium", International Biodeterioration & Biodegradation", 41(2) 101-109.

      [5] Hewayde, E., Nehdi, M., et al. (2007), "Effect of mixture design parameters and wetting-drying cycles on resistance of concrete to sulfuric acid attack", Journal of Materials in Civil Engineering, 19(2) 155-163.

      [6] Iraqi specification, No.5/1984., “Portland cementâ€.

      [7] Iraqi specification, No.45/1984., “Aggregate from natural sources for concrete and constructionâ€.

      [8] Kaempfer W., and Berndt M., (1999) "Estimation of Service Life of Concrete in Sewer Networks", Institute of Material Research and Testing, Bauhaus University of Weimar, Germany.

      [9] Nica, D., Davis, J., L., et al. (2000), "Isolation and characterization of microorganisms involved in the biodeterioration of concrete in sewers", Journal of International Biodeterioration & Biodegradation, 46(1) 61-68.

      [10] Okabe, S., Odagiri, M., et al. (2007), "Succession of sulfur-oxidizing bacteria in the microbial community on corroding concrete in sewer systems", Applied and Environmental Microbiology, 73(3) 971-980.

      [11] Olmstead, W., M., and Hamlin, H. (1900), "Converting portions of the los angles outfall sewer into a septic tank", Engineering news, 44 317-318.

      [12] www.calucem.com

  • Downloads

  • How to Cite

    H. Ismail, A., & Sh. Abed, B. (2018). Using Polyurethane Coating of Concrete Pipes with Acid Attack Resistance in Sewer Lines. International Journal of Engineering & Technology, 7(4.20), 118-122. https://doi.org/10.14419/ijet.v7i4.20.25861

    Received date: 2019-01-13

    Accepted date: 2019-01-13

    Published date: 2018-11-28