Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Compressive strength evaluation of structural lightweight concrete by non-destructive ultrasonic pulse velocity method
In this paper the compressive strength of a wide range of structural lightweight aggregate concrete mixes is evaluated by the non-destructive ultrasonic pulse velocity method. This study involves about 84 different compositions tested between 3 and 180 days for compressive strengths ranging from about 30 to 80 MPa. The influence of several factors on the relation between the ultrasonic pulse velocity and compressive strength is examined. These factors include the cement type and content, amount of water, type of admixture, initial wetting conditions, type and volume of aggregate and the partial replacement of normal weight coarse and fine aggregates by lightweight aggregates. It is found that lightweight and normal weight concretes are affected differently by mix design parameters. In addition, the prediction of the concrete's compressive strength by means of the non-destructive ultrasonic pulse velocity test is studied. Based on the dependence of the ultrasonic pulse velocity on the density and elasticity of concrete, a simplified expression is proposed to estimate the compressive strength, regardless the type of concrete and its composition. More than 200 results for different types of aggregates and concrete compositions were analyzed and high correlation coefficients were obtained.
Compressive strength evaluation of structural lightweight concrete by non-destructive ultrasonic pulse velocity method
In this paper the compressive strength of a wide range of structural lightweight aggregate concrete mixes is evaluated by the non-destructive ultrasonic pulse velocity method. This study involves about 84 different compositions tested between 3 and 180 days for compressive strengths ranging from about 30 to 80 MPa. The influence of several factors on the relation between the ultrasonic pulse velocity and compressive strength is examined. These factors include the cement type and content, amount of water, type of admixture, initial wetting conditions, type and volume of aggregate and the partial replacement of normal weight coarse and fine aggregates by lightweight aggregates. It is found that lightweight and normal weight concretes are affected differently by mix design parameters. In addition, the prediction of the concrete's compressive strength by means of the non-destructive ultrasonic pulse velocity test is studied. Based on the dependence of the ultrasonic pulse velocity on the density and elasticity of concrete, a simplified expression is proposed to estimate the compressive strength, regardless the type of concrete and its composition. More than 200 results for different types of aggregates and concrete compositions were analyzed and high correlation coefficients were obtained.
Compressive strength evaluation of structural lightweight concrete by non-destructive ultrasonic pulse velocity method
Bogas, J. Alexandre (Autor:in) / Gomes, M. Gloria (Autor:in) / Gomes, Augusto (Autor:in)
Ultrasonics ; 53 ; 962-972
2013
11 Seiten, 15 Bilder, 3 Tabellen, 38 Quellen
Aufsatz (Zeitschrift)
Englisch
Predicting Concrete Compressive Strength Using Ultrasonic Pulse Velocity and Rebound Number
| Online Contents | 2011
Estimation of Compressive Strength of Concrete Member Using Ultrasonic Pulse Velocity Method
| British Library Online Contents | 2014
Predicting Concrete Compressive Strength Using Ultrasonic Pulse Velocity and Rebound Number
| British Library Online Contents | 2011
Compressive strength and ultrasonic pulse velocity relationships for concrete in columns
| Engineering Index Backfile | 1958
| British Library Online Contents | 2008