Addressing Microbial Induced Corrosion in Precast Concrete Structures

Precast concrete structures are known for their durability. Manufacturers of quality precast products assess threats on durability based on product use and environmental conditions and designs are updated accordingly. A potential issue unique to water treatment and conveyance structures is Microbial Induced Corrosion (MIC). Although only seen in a very small number of installations, NPCA has been heavily engaged in studying the phenomenon of MIC in order to address durability concerns. Over the last 10 years, NPCA has commissioned two major studies on MIC and has been a partner in a third project with ASTM.

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