Publication details
Schmidt Rebound Hardness Dependence on the Core-Size: A Correction Model Presented and Tested on Greywacke
| Authors | |
|---|---|
| Year of publication | 2024 |
| Type | Article in Periodical |
| Magazine / Source | Journal of Testing and Evaluation |
| MU Faculty or unit | |
| Citation | |
| Web | https://www.astm.org/jte20230628.html |
| Doi | http://dx.doi.org/10.1520/JTE20230628 |
| Keywords | Schmidt hammer; rebound hardness; core-size effect; greywacke |
| Description | We determined the effect of the core sample dimensions on the measured values of the Schmidt rebound hardness and proposed a way to correct it to obtain unaffected value. The effect was previously investigated on cubes, where a clear dependence of the rebound hardness on the cube edge was proved. For cylindrical bodies, however, the problem is more complex. In order to determine and verify our model, a set of cylindrical samples was made from greywacke. After applying the correction, an improvement in the mean rebound hardness of the whole set was achieved from 80 to 98.8 % of the unaffected mean rebound value. |