Evaluation of Freeze-Thaw Durability of Silica Fume Concrete with Spraying Inorganic Coating Using Ultrasonic Testing

Table 4

Parameters of linear relationship between ultrasonic compressive pulse velocity and shear pulse velocity.

Specimen	a	b	Determination coefficient
All samples	0.6102	0.0713	0.9936
C40-A1-NCTC	0.6044	0.0977	0.9984
C40-A2-NCTC	0.6108	0.0692	0.9993
C40-A3-NCTC	0.6182	0.036	0.9679