Testing Method of Concretion Wave Speed of Anchorage Bolt for Concrete Strength

Based on principle of anchorage bolt testing, concretion wave speed in reinforced cement structure was proved to change by means of theoretic analysis and laboratory study. It ranged from wave speed of excited elastic stress wave in cement structure to that in steel bar. The relation between quality of reinforced cement structure and concretion wave speed was also given. Present results provided a nondestructive testing method to test quality of reinforced cement structure in practice.