ASTM C1894-22

1.1 This guide discusses microbially induced corrosion (MIC) of concrete products and laboratory test methods for determining the resistance of concrete to MIC. Although the guide is intended for concrete products, it also covers cementitious mortar and paste that are used in specialized applications or laboratory investigations.

1.2 While this guide discusses concrete materials and admixtures, the document is not intended to specifically address field exposure conditions or sewage pipe, concrete tank, or concrete riser network design.

1.3 This guide does not cover live trial tests where concrete coupons or other specimens are monitored in sewers.

1.4 This guide does not cover concrete deterioration due to chemical sulfate attack, which is caused by the reaction of sulfate compounds that exist in wastewater with the hydration products of cement. Test methods for assessing sulfate attack are provided by Test Methods C452 and C1012/C1012M.

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6 The text of this guide references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.