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- W2336454287 abstract "Aging of dams necessitates their health monitoring. For this purpose different destructive techniques involve extraction of cores for finding the strength. Puncturing the body of dams is not advisable as it would unnecessarily result in damaging the structure and the procedure is also too expensive to be used. Therefore in order to monitor the post construction performance of concrete investigations were carried out for developing the relationship between the ultrasonic pulse velocity (UPV) and the compressive strength of concrete. The specimens used in the studies were made of concrete with varied cement content, water-cement ratios (w/c) and coarse aggregate contents by weigh batching. The UPV measurement and compressive strength tests were carried out on concrete cubes at the age of 7 and 28 days. The relationship developed in the study is case specific as the UPV and the compressive strength of concrete depends on various factors such as cement-mortar paste content, water-cement ratio and coarse aggregate content and its quality, admixtures. Hardened concrete (at an age of 28 days) was selected as the subject for analysis in the current study. It is found that with the same grade of concrete, a clear relationship curve can be drawn to describe the UPV and compressive strength of hardened concrete. This paper proposes the UPV and strength relationship curves for different concrete mixes/grades used in concrete structures of Tehri Hydro Electric Project, Uttarakhand. The estimated correlation curves are verified to be suitable for prediction of hardened concrete strength with a measured UPV value in the health monitoring of structures under reference during its service period." @default.
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- W2336454287 date "2011-01-01" @default.
- W2336454287 modified "2023-09-24" @default.
- W2336454287 title "Correlation between Pulse Velocity and Compressive Strength of Concrete" @default.
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