The assessment of concrete quality by ultrasonic pulse velocity
Journal of Science and Technology in Civil Engineering (STCE) - NUCE, 2018 In the present study, the uniformity and potential internal defects of concrete elements in situ were assessed by using Ultrasonic Pulse Velocity (UPV) testing method according to TCVN 9357:2012. Thirteen cross beams with dimension of 4.8 x 1.5 x 1.5 m3 were selected to measure the pulse velocity. Three cross beams were used to check potential internal
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Estimativa da resistência do concreto à compressão por meio da velocidade de propagação dos pulsos ultrassônicos na pasta do concreto [PDF]
, 2012 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia CivilEsse trabalho propõe um procedimento alternativo para a estimativa da resistência à compressão do concreto através do método da ...
Irrigaray, Mário Arlindo Paz
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Ultrasonic transducers for wideband attenuation measurements [PDF]
, 1987 Includes bibliographical references.An application of ultrasound presently being investigated at the Council for Mineral Technology {MINTEK) is the measurement of the concentration of graphite particles in suspension in an agitated pulp. The principle of
Mayer, J Bertrand
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Development of an Ultrasonic Airflow Measurement Device for Ducted Air [PDF]
, 2015 In this study, an in-duct ultrasonic airflow measurement device has been designed, developed and tested. The airflow measurement results for a small range of airflow velocities and temperatures show that the accuracy was better than 3.5% root mean square
Andrew B. Raine +9 more
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Experimental and numerical studies on low velocity impacts detection and damage identification in metal and composite structures using ultrasonic waves propagation (Lamb waves) [PDF]
, 2011 In this thesis a theoretical base required for the development of a reliable structural health monitoring system based on ultrasonic guided waves is considered.
Tancredi, Simone
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Crystals, 2020 The purpose of this paper is to establish some correlations between the main technical parameter with regard to the cement-based materials technology, the 28-day compressive strength, and ultrasonic pulse velocity of standard mortar samples cured at ...
Esteban Estévez +3 more
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دراسة بعض خواص الخرسانة الرغویة باعتماد سرعة الموجات فوق الصوتیة
Iraqi Journal of Civil Engineering, 2007 Concrete is by far the most widely used construction material now today. Foamed concrete is light building material with good strength as well as low thermal conductivity and easy workability; it is produced by either Mix Foam Method or Preformed Foam ...
Amir Abdul-Rahman Hilal Al-Dulaimi
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Rekayasa Sipil, 2019 This research aims to know the relationship of the pulse velocity to compression strength with a variation of the quality of the concrete based on the ultrasonic pulse velocity.
Kushariyanto +2 more
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The application of air-coupled ultrasonic systems and signal processing to the interrogation of concrete [PDF]
This thesis describes the application of ultrasound to the interrogation of concrete for the retrieval of quantitative information. In particular the use of air-coupled ultrasound is applied for the first time with recent improvement in ultrasonic ...
Berriman, James Robert Stockwell
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Effect of Pouring Time on the Integrity of Pulverized Fuel Ash Concrete
Applied SciencesThe effects of pouring time intervals on the integrity of pulverized fuel ash (PFA) concrete were evaluated by measuring ultrasonic pulse velocity and compressive strength.
Longyue Ni +3 more
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