Research Article

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

Figure 4

Variation characteristic of ultrasonic compressive pulse velocity and its decay rate of three kinds of concrete over 300 FT cycles. (a) Variation characteristic of ultrasonic compressive pulse velocity; (b) decay rate of ultrasonic compressive pulse velocity.
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