Ultrasonic Velocity as a Tool for Physical and Mechanical Parameters Prediction within Geo-Materials: Application on Cement Mortar


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Аннотация

This paper discusses the ability of ultrasonic wave velocity to evaluate some physical parameters within mortar. The behavior of ultrasonic pulse velocity within mortar subjected to incremetal stress was also studied. For experimentation, we carried out ultrasonic measurements on mortar samples before and during uniaxial compressive strength, perpendicularly to the stress direction. The water/cement ratios were varied in order to contribute certain specific characteristics. A set of expressions was obtained linking the initial velocities of longitudinal ultrasonic waves with compressive strength, density, porosity and load at elastic limit.The evolution of ultrasonic velocity through mortar samples under continuous incremental uniaxial stress were also investigated. The results illustrated the behavior of ultrasonic pulse velocity as a function of the applied stress. It was observed that velocity did not decrease under initial loading and until about 70% of the ultimate stress, where sudden decrease occurred, followed by the failure of the material.

Авторлар туралы

Abdelhedi Mohamed

Faculté des Sciences de Sfax; Laboratoire de Modélisation des Systèmes Géologiques et Hydrologiques (LR16ES17)

Хат алмасуға жауапты Автор.
Email: abdelhedi_mohamed@yahoo.fr
Тунис, Route de Soukra, Sfax, 3018; Sfax, 3018

Mnif Thameur

Faculté des Sciences de Sfax; Laboratoire de Géoressources, Matériaux, Environnement et Changements Globaux (LR/13/ES-23)

Email: abdelhedi_mohamed@yahoo.fr
Тунис, Route de Soukra, Sfax, 3018; Sfax, 3018

Abbes Chedly

Faculté des Sciences de Sfax; Laboratoire de Modélisation des Systèmes Géologiques et Hydrologiques (LR16ES17)

Email: abdelhedi_mohamed@yahoo.fr
Тунис, Route de Soukra, Sfax, 3018; Sfax, 3018

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© Pleiades Publishing, Ltd., 2018