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Showing 1 to 7 of 7 for “"Ultrasonic pulse velocity (UPV)"”.
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NDT to characterize 3D printed concrete interlayer bonds
… applied four NDT methods (x-ray radiography, ultrasonic pulse velocity (UPV), vibration resonance, and multi-element array ultrasonics) to idealized, layered concrete specimens that simulate layers of a 3D printed structure. The bond interfaces in the samples were characterized into well …
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Air-coupled ultrasonic tomographic imaging of concrete elements
Ultrasonic tomography is a powerful tool for identifying defects within an object or structure. This method can be applied on structures where x-ray tomography is impractical due to size, low contrast, or safety concerns. By taking many ultrasonic pulse velocity (UPV) readings through the object, …
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Effect of palm oil waste and quarry dust on the properties of hybrid blocks
… such as the density, compressive strength, ultrasonic pulse velocity (UPV), modulus of rupture, water absorption, a compressive strength of prisms, efflorescence, thermal conductivity, and leachability. Furthermore, the investigation on the durability of the blocks in laboratory accelerated …
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Sustainable Utilisation of Raw Sewage Sludge (RSS) as a Water Replacement in Cement-Based Materials Containing Unprocessed Fly Ash
… density, Total Water Absorption (TWA), Ultrasonic Pulse Velocity (UPV), compressive strength, flexural strength, drying shrinkage, sulphate attack and leaching properties. Three series of cement-based materials were studied including mortar mixes with RSS and unprocessed fly ash (Series …
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Corrosion performance of coated steel bars in cracked and uncracked reinforced concrete beams
… methods such as Ground Penetrating Radar (GPR), Ultrasonic Pulse Velocity (UPV), and Impact Echo (IE) are employed to assess the long term corrosion condition. Overall, it was observed that through 11 months of cyclic chloride ion exposure that the TEC bar specimens, both loaded and unloaded and …
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Inspection, Assessment, and Repair of Grouted Ducts in Post-tensioned Bridge
… voids in external tendons. The impact echo (IE), ultrasonic pulse velocity (UPV), and sounding inspection methods were selected and assessed for identifying voids in preliminary test setup. The sounding inspection method is further assessed for its effectiveness in identifying voids in a …
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Deterioro del hormigón sometido a ensayos acelerados de hielo-deshielo en presencia de cloruros
… sensores de fibra óptica. La velocidad de pulso ultrasonico (VPU) en las probetas de hormigón también se ha medido utilizando diferentes métodos y equipos para establecer la variación del modulo de elasticidad dinámico del material. El trabajo presenta los resultados correspondientes a los …