Quality control of hydraulic concrete at early ages using ultrasonic testing
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| Автор: | |
|---|---|
| Формат: | artículo original |
| Статус: | Versión publicada |
| Дата публикации: | 2026 |
| Описание: | The ultrasonic test on concrete allows determining a quality classification, based on the magnitude of the ultrasonic pulse velocity from a piezoelectric sensor that emits the pulse, to another sensor that receives it, passing through the analyzed material. Any discontinuity that adds air to the pulse path will affect the result obtained, since ultrasonic waves do not travel through air. Therefore, the design, mixing, placing and curing processes of the concrete can influence the percentage of air content trapped within the mix or within the cast element. The present work compares the compressive strength results with the development of ultrasonic velocity during the hardening period of the concrete, to determine the usefulness of ultrasonic testing for quality control of new construction work, in order to have reliable acceptance results. The analyzed concrete has a f’c 210 kg/cm² made in a stationary mixer and the concrete curing time is 28 days. It is possible to determine the reliability of the ultrasonic test for the inspection of construction work from 7 days after the casting, allowing an early guarantee of the quality of the concrete or a prompt resolution of adverse results detected by this non-destructive test. |
| Страна: | Portal de Revistas TEC |
| Институт: | Instituto Tecnológico de Costa Rica |
| Repositorio: | Portal de Revistas TEC |
| Язык: | Español |
| OAI Identifier: | oai:ojs.pkp.sfu.ca:article/7951 |
| Online-ссылка: | https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/7951 |
| Ключевое слово: | Concrete Air content Quality control Ultrasonic wave Ultrasonic pulse Curing time Ultrasonic speed Concreto Contenido de aire Control de calidad Ondas ultrasónicas Pulso ultrasónico Tiempo de curado Velocidad ultrasónica |