DOI: 10.5281/zenodo.17880292
title: Data for: Impact of External Mechanical Loads on Coda Waves in Concrete

description: This dataset contains data collected within the Chair of Materials Science and Testing at the Technical University of Munich. A short description of the data set is given below. This data has been generated within the framework of the DFG Research Unit Concrete Damage Assessment by Coda Waves (CoDA). For further details on the Research Unit, and related datasets we refer to the description of the community.

Before downloading the data, please read the technical information provided below.

Research ObjectiveThe experiment was created to investigate the following research question:- quantifying the effects of uniaxial compression, uniaxial tension, shrinkage and creep of a normal concrete on signal changes in the Coda analyzed by means of correlation coefficients and velocity variations of collected ultrasonic signals.
description: Experiment DescriptionFollowing experiments were conducted: Compression Experiment, Tension Experiment and Shinkage and Creep Experiment. For the compression test, three cuboid specimens with an edge length of 400 mm and side lengths of 100 mm with a transducer distance of 300 mm symmetrical to the center axis were used. For the centric tension test, three cylindrical bone-shaped specimens with a length of 300 mm and a decreasing cross section was used to define a predetermined fracture section. The transducer distance was 198 mm symmetrical to the center axis. For the shrinkage and creep test, the specimens were geometrically same as the ones used for compression test.

Material CompositionsConcrete composition of all the experiments in this dataset: Concrete: OPC (CEM I 42.5 R); w/c 0.45; max. aggregate 8mm (quartzitic crushed)

The numbering of mixtures, specimens and sensors corresponds to the system used by the DFG Research Unit Concrete Damage Assessment by Coda Waves (CoDA). For further details on the Research Unit and related datasets we refer to the description of the community



 
description: The data is structured as per experiment as follows:

A Compression Test

01 Original Documents

·         Images

·         Channel configuration information

02 Raw Data



01 Material Properties (Concrete mix design, as .pdf)

02 Associated data (strain, load, deflection, temperature (env.), moisture (env.) data, as .pkl files)

03 Ultrasonic signals, raw (.pkl files) of each specimen


B Tension Test

01 Original Documents

·         Images

·        Channel configuration information

02 Raw Data



01 Material Properties (Concrete mix design, as .pdf)

02 Associated data ( load data, as .pkl files)

03 Ultrasonic signals, raw (.pkl files) of each specimen


C Shinkage and Creep Test

01 Original Documents

·         Images

·         02 Raw Data



01 Material Properties (Concrete mix design, as .xlsx)

02 Associated data (strain, load, temperature (env.), moisture (env.) data, as .pkl files)

03 Ultrasonic signals, raw (.pkl files) of each specimen
description: Data is given in the following formats:



sensor data (.pkl)

supplementary data (.pdf, .jpg)


Disclaimer: This data set contains data in the pickle data format. It is possible to construct malicious pickle data which will execute arbitrary code during unpickling. More information can be retrieved in the respective documentation (https://docs.python.org/3/library/pickle.html). 
description: This version of the dataset contains the data of the article submitted on 09th August 2022.

This dataset may be revised in future versions. Updates may include the addition of new matching data, as well as changes to data formatting, structure, or organization.