Interrelated dataset of rebound numbers, ultrasonic pulse velocities and compressive strengths of drilled concrete cores from an existing structure and new fabricated concrete cubes

Daniel Gebauer; Raúl Enrique Beltrán Gutiérrez; Steffen Marx; Marko Butler; Konrad Grahl; Thomas Thiel; Stefan Maack; Stefan Küttenbaum; Stephan Pirskawetz; Wolfgang Breit; Martin Schickert; Marco Krüger

doi:10.1016/j.dib.2023.109201

Interrelated dataset of rebound numbers, ultrasonic pulse velocities and compressive strengths of drilled concrete cores from an existing structure and new fabricated concrete cubes

Data Brief. 2023 May 5:48:109201. doi: 10.1016/j.dib.2023.109201. eCollection 2023 Jun.

Affiliations

¹ Technische Universität Dresden, Institute of Concrete Structures, Dresden 01062, Germany.
² Technische Universität Dresden, Institute of Construction Materials, Dresden 01187, Germany.
³ Hochschule für Technik und Wirtschaft Dresden, Dresden 01069, Germany.
⁴ Bundesanstalt für Materialforschung und -prüfung (BAM), Berlin 12203, Germany.
⁵ Technische Universität Kaiserslautern, Construction Material Technology, Kaiserslautern 67663, Germany.
⁶ Materialforschungs- und -prüfanstalt an der Bauhaus-Universität Weimar, Weimar 99423, Germany.

Abstract

Two test series were examined using nondestructive measuring methods by six independent laboratories before determining their compressive strength. The nondestructive test methods used were the rebound hammer and ultrasonic pulse velocity measurement. Two types of geometries were investigated: drilled cores and cubes. The measurement procedure for each of these datasets is conditioned to the geometry and is therefore different. The first series consists of 20 drilled cores (approximately diameter/height = 10 cm/20 cm) from the 55-year-old Lahntal Viaduct near Limburg, Germany. After preparation in the first laboratory, the lateral surface of the drilled cores was tested with the rebound hammer using a given pattern. Every laboratory tested every drilled core at different locations. Ultrasonic measurements in transmission were performed repeatedly at predefined points on the flat surfaces of the specimen. The second series consisted of 25 newly manufactured concrete cubes of a mix with a target concrete strength class of C30/37. The edge length was 15 cm. Each laboratory received five specimens of this test series. Thus, contrary to the first series, each specimen was tested by only one laboratory. Two side faces of each cube were tested with the rebound hammer. In addition, ultrasonic measurements were performed by one laboratory. The time of flight was measured between the tested side faces of the rebound hammer at different positions. For both series, rebound hammers were used to determine the R-value as well as the Q-value. The rebound hammer models within the laboratories were always the same, while they differed between the laboratories. The ultrasonic measurements took place with different measurement systems and couplants. Finally, both specimen series were tested destructively for compressive strength. The dataset contains the raw data summarized in tabular form. In addition, relevant calculated data are included in some cases. For the ultrasonic measurements, the time of flight has already been converted into the ultrasonic velocity. Besides, in addition to the raw data of the compressive strength test (force, weight, and geometry values), the calculated compressive strengths and densities are also provided.

Keywords: Civil engineering; Compressive concrete strength; Existing structures; Interlaboratory test; Nondestructive evaluation; Rebound hammer; Ultrasonic pulse velocity.