Compressive Strength Formula for Concrete using Ultrasonic Pulse Velocity

Salim Al-Numan, Bayan (2015) Compressive Strength Formula for Concrete using Ultrasonic Pulse Velocity. International Journal of Engineering Trends and Technology, 26 (1).

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This paper investigates the relationship between the ultrasonic pulse velocity (UPV) and the compressive strength of concrete. The specimens used in the study were made of concrete with a varied cube compressive strength from 18 to 55MPa. Number of specimens was over 800 received from various construction projects of controlled concrete quality and tested by the Hawler Construction Laboratories (HCLabs) in Erbil, Kurdistan Region of Iraq, during the last half of 2014. The UPV measurement and compressive strength tests were carried out at the concrete age of 28 days. The experimental results show that although the UPV and the compressive strength of concrete are related, no unique relationship can be established to cover all concrete specimens. It is found, from a companion research, that with certain levels of concrete coarse aggregate content, certain clear relationships can be established. This paper proposes the UPV - strength relationship formulas/curves for concrete having the range from 18 to 55MPa of concrete strength. These curves were verified to be suitable for prediction of hardened concrete strength with a measured UPV value. Other proposals found in literature are compared and discussed. It is believed that the proposed formulas may be appropriately applied and used for the service of the local construction practice of the country.

Item Type: Article
Uncontrolled Keywords: concrete strength; NDT; ultrasonic pulse velocity
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Depositing User: ePrints deposit
Date Deposited: 22 Dec 2021 11:10
Last Modified: 22 Dec 2021 11:10

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