The National Fire Protection Association (NFPA) reports that there were 490,500 structure fires in the U.S. in 2020. However, people mostly struggles with the aftermath of the fire-damage. Structure fires caused $12.1 billion in property damage in 2020. How do we determine whether to rebuild or repair the fire-damaged structure? The Korea Institute of Civil Engineering and Building Technology (KICT) developed the world first forensic tool for fire-damaged concrete structure.