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Investigation of best practices for maintenance of concrete bridge railings : [tech summary].

File Language:
English


Details

  • Creators:
    Hassan, Marwa ORCID ICON IMG
  • Corporate Creators:
    Louisiana Transportation Research Center
  • Subject/TRT Terms:
  • Publication/ Report Number:
    State Project No. 30000660;LTRC Project No. 12-3C
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    Louisiana
  • Corporate Publisher:
    Louisiana Transportation Research Center
  • Abstract:
    The development of biofi lms on concrete structures has a negative impact on aesthetics as well as on the performance and integrity ; of concrete structures. Biofi lms develop and grow easily when the right conditions are present, such as high relative humidity (60 to ; 100%) and temperature (70 to 95°F). These conditions are encountered in the hot-humid climatic region, which includes the state of ; Louisiana. As a consequence, visible stains and a relatively fast deterioration of bridges, roads, highways, and other structures are ; encountered in the state of Louisiana. This issue has triggered public complaints which, as a result, have raised the need to fi nd a ; practical and economic solution to be used by the Department. ; To address this problem, this study conducted a comprehensive literature review to identify the causes and types of biofi lm ; deterioration and surveyed state agencies on currently used methods to prevent and eliminate biofi lm development on concrete ; surfaces. It also identifi ed other DOTs facing similar problems and the methods they use to ; prevent biofi lm growth. In addition, the report also surveyed private companies that clean ; biofi lm growth on concrete surfaces across the US to identify innovative solutions to this issue. A ; comparative analysis between the widely used cleaning methods was conducted and presented in ; order to determine which method(s) should be evaluated for possible implementation in Louisiana.
  • Format:
    PDF
  • Download URL:
    https://rosap.ntl.bts.gov/view/dot/28602/dot_28602_DS1.pdf
  • File Type:
    Filetype[PDF - 127.74 KB]
  • Collection(s):
    US Transportation Collection
  • Main Document Checksum:
    urn:sha-512:d0ea58ef8f253714db38449dd790b05d9062a5f153829bf26b5beda8cac5963b46d93fb2a5308840d50a619d820a893a5d786e9c2b662679a782c37fb59dd24c
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