Possibilities of using the ultrasonic wave transmission method to estimate initial setting time of cement paste [PDF]
, 2008 In this paper, the applicability of the ultrasonic wave transmission method to estimate the initial setting time of an arbitrary cement paste is discussed. Ultrasonic pulse velocity measurements were fully automated and measured continuously.
Chotard +19 more
core +2 more sources
Prediction of concrete strength using ultrasonic pulse velocity and artificial neural networks [PDF]
, 2009 Ultrasonic pulse velocity technique is one of the most popular non-destructive techniques used in the assessment of concrete properties. However, it is very difficult to accurately evaluate the concrete compressive strength with this method since the ...
Ali +14 more
core +1 more source
A mathematical and numerical framework for ultrasonically-induced Lorentz force electrical impedance tomography [PDF]
, 2014 We provide a mathematical analysis and a numerical framework for Lorentz force electrical conductivity imaging. Ultrasonic vibration of a tissue in the presence of a static magnetic field induces an electrical current by the Lorentz force.
Ammari, Habib +4 more
core +3 more sources
The use of non-destructive tests to estimate Self-compacting concrete compressive strength
MATEC Web of Conferences, 2018 Until now, there are few studies on the effect of mineral admixtures on correlation between compressive strength and ultrasonic pulse velocity for concrete.
Djamila Boukhelkhal, Mohamed Guendouz
doaj +2 more sources
Ultrasonic wave propagation in thermally treated concrete up to 400 ºC
Revista IBRACON de Estruturas e Materiais, 2021 The ultrasonic pulse velocity, obtained by ultrasonic non-destructive testing, has been applied to evaluate the concrete integrity. The attenuation parameters have shown more sensitivity to damage detection in the microstructure of concrete since they ...
Ana Carolina Costa Viana +2 more
doaj +1 more source
An Ultrasonic Sensor for Distance Measurement in Automotive Applications [PDF]
, 2001 This paper describes an ultrasonic sensor that is able to measure the distance from the ground of selected points of a motor vehicle. The sensor is based on the measurement of the time of flight of an ultrasonic pulse, which is reflected by the ground. A
Carullo, Alessio, Parvis, Marco
core +1 more source
Evaluation of Condition of Concrete Structures Using Ultrasonic Pulse Velocity Method
Applied Sciences, 2020 The purpose of this study is to estimate the compressive strength according to the age of the concrete structure using ultrasonic pulse velocity method.
Seonguk Hong +5 more
doaj +1 more source
Assessment of mortar evolution in pig slurry by mechanical and ultrasonic measurements [PDF]
, 2010 This work presents the results obtained in a long-term experiment focused on the study of the evolution of cementitious materials immersed in pig slurry at real conditions.
González Hernández, Margarita +3 more
core +2 more sources
Comparison between Destructive and Non-Destructive Test on Concrete [PDF]
Eurasian Journal of Science and Engineering, 2017 Compression strength is the most important factor in concrete structures, and there are two methods to evaluate that compressive strength, destructive and non-destructive method.
Junaid Kameran Ahmed +1 more
doaj +1 more source
Monolithic ultrasound fingerprint sensor. [PDF]
, 2017 This paper presents a 591×438-DPI ultrasonic fingerprint sensor. The sensor is based on a piezoelectric micromachined ultrasonic transducer (PMUT) array that is bonded at wafer-level to complementary metal oxide semiconductor (CMOS) signal processing ...
Boser, Bernhard E +7 more
core +1 more source