The effect of microbial acid corrosion on concrete infrastructures- a review

Articles in Press

Document Type : Original Article

Authors

1 assistant professor

2 Civil Engineering Master student, Faculty of Civil Engineering, Shahid Rajaee University, Tehran

10.22034/road.2023.363119.2093

Abstract

Corrosion of concrete caused by the activity of microbes is one of the main mechanisms of the destruction of subsurface concrete infrastructures. Because generally, in cities, concrete sewage infrastructures are installed under the road network, the failure of concrete facilities in the face of bacteria can have direct costs on the road infrastructure and indirect effects on roads and pavements as well as road users' health. Also, the destruction of concrete sewer infrastructure can cause soil and groundwater pollution, so the importance of knowing this type of corrosion and providing a reliable solution to control the destructive effects of this type of acid attack can lead to sustainable development. In this review, an overview of the vital research advances obtained concerning understanding microbial corrosion reaction mechanisms and developing durable materials have been made. For this purpose, for example, antibacteriostatic agents have been introduced as an effective tool to limit the growth of microbes on concrete surfaces in aggressive environments. In addition, geopolymer concretes in acidic environments as very resistant, and green concretes can reduce the severity of damage caused by acid attacks of bacterial origin.

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