The Comprehensive Assessment Method of Concrete Damage after Disastrous Fire Based on Game Theory-Normal Cloud Model

Table 2

Grading and valuing standards of assessment index .

Grades	Value	Damage state
I	0.0~0.1	Basically unchanged
II	0.1~0.25	Covered by black
III	0.25~0.4	Pink or red
IV	0.4~0.75	Off-white
V	0.75~1.0	Pale yellow