Work

Carbonation and Compressive Strength Properties of Electric Power Utility Tunnel Concrete Exposed to a Carbon Dioxide Environment

Year: 2024

Type: article

Abstract: Recently, the service lives of electric power utility tunnels have been increasing rapidly; however, inspection and maintenance tasks are difficult, and the economic loss owing to the end of tunnels’ lifespans is substantial. Moreover, electric power utility tunnels are exposed to high carbon dioxide. Because their interiors are sealed environments, the tunnels are significantly affected by carbon dioxide. Carbon dioxide can cause concrete carbonation, which can lead to a decline in the performance of electric power utility tunnels. In this study, the carbonation characteristics of concrete were analyzed, and the effect of carbonation on the mechanical performance was evaluated.

Source: Korean Society of Hazard Mitigation

DOI: 10.9798/kosham.2024.24.6.307

Authors: Nakhyun Chun, Hyunki Choi, Joohong Chung, Kyeongmin Hwang, Hyungsuk Jung

Institution: Korea Electric Power Research Institute

Language: English

Topic: Concrete Corrosion and Durability

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Industry, innovation and infrastructure, Climate action

Open Access status: diamond

Funders: National Research Foundation of Korea, Korea Electric Power Corporation, Ministry of Science and ICT, South Korea