ASTM WK69718

    New Test Methods for Standard Test Methods for the Determination of the Effects of Biogenic Acidification on Concrete Antimicrobial Additives and/or Concrete Products

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    Developed by Subcommittee: C13.03 | Committee C13 | Contact Staff Manager



    WK69718

    1. Scope

    This document presents standard test methods for the determination of the effects of biogenic acidification on concrete products or/and efficacy of antimicrobial products to resist microbially induced corrosion (MIC) of concrete. In these tests, the biogenic acidification is achieved by sulfur oxidizing bacteria (SOB) which can convert elemental sulfur or thiosulfate to sulfuric acid without the use of H2S gas.


    Keywords

    biogenic sulfuric acid; acidification; microbiologically induced corrosion

    Rationale

    This standard is required to provide testing procedures for determining the effects of biogenic acidification on concrete antimicrobial additives and or concrete products

    The title and scope are in draft form and are under development within this ASTM Committee.

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    Work Item Status

    Date Initiated:
    08-27-2019

    Technical Contact:
    Mel Marshall

    Item:
    010

    Ballot:
    C13 (20-03)

    Status:
    Ballot Item Approved as C1904-2020 and Pending Publication