The Discussion about Determined Deformation of Concrete during Steam-Curing Wang ChiaSome theoretical analyses in this paper show tiat the totle deformation of concrete during steam-curirg can only be determined with extensometer of typ2 DI-10. So the auther's opinion is difierent from reference's (1), which considers that the reversible and inreversiblc deformations can be determined by extenometer of type DI-10.