Performance evaluation of hemp concrete by non-destructive test

Abstract Non-destructive test (NDT) is used to find the physical properties of concrete without any destruction to the structure. There are various methods of NDT in order to calculate the strength of concrete members. Hemp is a type of agro-waste which can be used to make Hemp concrete by mixing cement, aggregates, Hemp, admixtures and water in desired proportion. The aim of the study was to correlate the Ultrasonic Pulse Velocity (UPV) with compressive strength, in order to determine equations between direct UPV with indirect UPV and to develop correlation between direct UPV with Compressive strength. In this study, 6 cubes of Hemp concrete of size 150 mm X 150 mm X 150 mm were casted and cured for 7–28 days, dried and tested for direct UPV, indirect UPV and compressive strength. Then these values are correlated with each other to determine the association in direct UPV, indirect UPV and Compressive strength. The most excellent fit curve for compressive strength and NDT values were obtained and equations were derived. These equations will be able to determine the concrete relative strength element (new or existing structural member) without destruction.