Estimation of Compressive Strength of Concrete Member Using Ultrasonic Pulse Velocity Method

Abstract:

This study uses the ultrasonic pulse velocity method, one of the non-destructive testing methods that do not damage the structure, to analyze the correlation of wave velocity and compressive strength of normal strength and high strength concrete to propose an estimation formula. And a concrete member is produced to estimate the compressive strength, and provide elementary data for establishing a site-applicable standard for strength estimation formula. In order to analyze the correlation of concrete compressive strength and wave velocity, total of 144 specimens were produced per age, and six concrete members were produced for wave velocity measurement. In this study, the Ultrasonic Pulse Velocity method was used to propose a compressive strength estimation formula of normal strength and high strength concrete, which was applied to concrete members for verification, and the following conclusion was obtained. The correlation between wave velocity and compressive strength was found to be F_c=0.0952V_P^3.5, R²=0.82 for normal strength concrete, and F_c=0.0028V_P^6.1, R²=0.83 for high strength concrete. Result of comparing the estimated strength of the concrete member of the relative error rate was standard strength 18.7% on average, the high-strength 8.7%

• Periodical: Key Engineering Materials (Volume 605)
• Pages: 143-146
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.605.143
• Online since: April 2014
• Authors: Yong Taeg Lee*, Seong Uk Hong, Seung Hun Kim, J.H. Park
• Keywords: Compressive Strength, Concrete Member, Estimation, Ultrasonic Pulse Velocity

References

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