Schmidt Rebound Hardness Dependence on the Core-Size: A Correction Model Presented and Tested on Greywacke

BRABEC, Marek and Lukáš KRMÍČEK. Schmidt Rebound Hardness Dependence on the Core-Size: A Correction Model Presented and Tested on Greywacke. Journal of Testing and Evaluation. ASTM International, 2024, vol. 52, No 4, p. 1-12. ISSN 0090-3973. Available from: https://dx.doi.org/10.1520/JTE20230628.

Basic information

Original name

Schmidt Rebound Hardness Dependence on the Core-Size: A Correction Model Presented and Tested on Greywacke

Authors

BRABEC, Marek and Lukáš KRMÍČEK (203 Czech Republic, belonging to the institution)

Edition

Journal of Testing and Evaluation, ASTM International, 2024, 0090-3973

---

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10500 1.5. Earth and related environmental sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

URL

Impact factor

Impact factor: 1.200 in 2022

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1520/JTE20230628

UT WoS

001195848200001

Keywords in English

Schmidt hammer; rebound hardness; core-size effect; greywacke

Tags

rivok

Tags

International impact, Reviewed

---

Abstract

V originále

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.