Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Estimation of Compressive Strength of Rocks Using Non-destructive Testing Methods
https://orcid.org/http://orcid.org/0000-0003-3197-1750
https://orcid.org/http://orcid.org/0000-0002-5893-1495
Unconfined compressive strength (UCS) is the most important mechanical property and its determination is indispensable for all projects involving rocks. In this paper, an attempt is made to estimate the unconfined compressive strength of rocks using non-destructive test methods such as Schmidt rebound hammer and ultrasonic pulse velocity (UPV) tests. The ratios of UPV and ρd, UPV and RN and also RN and ρd defined as a function of a UCS would work as a better indicator for evaluating the mechanical properties of the rocks. Rock samples were prepared as per ASTM standards and tests such as Schmidt hammer, UPV, UCS and dry density (ρd) were conducted on the prepared specimens. Schmidt hammer test for different positions (A scale, B scale and C scale) were conducted with precautions to arrive at the exact rebound number and thus the integrity of the samples was examined. Ultrasonic pulse velocity was measured using Proceq UPV tester as per ASTM standards. The UCS test observations made were correlated with the ratios of UPV and ρd, UPV and rebound number (RN) on A, B, C scales, RN in A, B, C scales and ρd. A simple regression study showed good outcomes, with all the regression coefficients being greater than 0.80 and the highest being 0.97 for the estimation of UCS using the ratio of RN (A scale) and ρd. This study can be used as a tool for the preliminary estimate of UCS.
Estimation of Compressive Strength of Rocks Using Non-destructive Testing Methods
https://orcid.org/http://orcid.org/0000-0003-3197-1750
https://orcid.org/http://orcid.org/0000-0002-5893-1495
Unconfined compressive strength (UCS) is the most important mechanical property and its determination is indispensable for all projects involving rocks. In this paper, an attempt is made to estimate the unconfined compressive strength of rocks using non-destructive test methods such as Schmidt rebound hammer and ultrasonic pulse velocity (UPV) tests. The ratios of UPV and ρd, UPV and RN and also RN and ρd defined as a function of a UCS would work as a better indicator for evaluating the mechanical properties of the rocks. Rock samples were prepared as per ASTM standards and tests such as Schmidt hammer, UPV, UCS and dry density (ρd) were conducted on the prepared specimens. Schmidt hammer test for different positions (A scale, B scale and C scale) were conducted with precautions to arrive at the exact rebound number and thus the integrity of the samples was examined. Ultrasonic pulse velocity was measured using Proceq UPV tester as per ASTM standards. The UCS test observations made were correlated with the ratios of UPV and ρd, UPV and rebound number (RN) on A, B, C scales, RN in A, B, C scales and ρd. A simple regression study showed good outcomes, with all the regression coefficients being greater than 0.80 and the highest being 0.97 for the estimation of UCS using the ratio of RN (A scale) and ρd. This study can be used as a tool for the preliminary estimate of UCS.
Estimation of Compressive Strength of Rocks Using Non-destructive Testing Methods
https://orcid.org/http://orcid.org/0000-0003-3197-1750
https://orcid.org/http://orcid.org/0000-0002-5893-1495
Unconfined compressive strength (UCS) is the most important mechanical property and its determination is indispensable for all projects involving rocks. In this paper, an attempt is made to estimate the unconfined compressive strength of rocks using non-destructive test methods such as Schmidt rebound hammer and ultrasonic pulse velocity (UPV) tests. The ratios of UPV and ρd, UPV and RN and also RN and ρd defined as a function of a UCS would work as a better indicator for evaluating the mechanical properties of the rocks. Rock samples were prepared as per ASTM standards and tests such as Schmidt hammer, UPV, UCS and dry density (ρd) were conducted on the prepared specimens. Schmidt hammer test for different positions (A scale, B scale and C scale) were conducted with precautions to arrive at the exact rebound number and thus the integrity of the samples was examined. Ultrasonic pulse velocity was measured using Proceq UPV tester as per ASTM standards. The UCS test observations made were correlated with the ratios of UPV and ρd, UPV and rebound number (RN) on A, B, C scales, RN in A, B, C scales and ρd. A simple regression study showed good outcomes, with all the regression coefficients being greater than 0.80 and the highest being 0.97 for the estimation of UCS using the ratio of RN (A scale) and ρd. This study can be used as a tool for the preliminary estimate of UCS.
Estimation of Compressive Strength of Rocks Using Non-destructive Testing Methods
Lecture Notes in Civil Engineering
Jose, Babu T. (Herausgeber:in) / Sahoo, Dipak Kumar (Herausgeber:in) / Oommen, Thomas (Herausgeber:in) / Muthukkumaran, Kasinathan (Herausgeber:in) / Chandrakaran, S. (Herausgeber:in) / Santhosh Kumar, T. G. (Herausgeber:in) / Kochukrishnan, Sowmya (Autor:in) / Krishnamurthy, Premalatha (Autor:in)
Indian Geotechnical Conference ; 2022 ; Kochi, India
Proceedings of the Indian Geotechnical Conference 2022 Volume 5 ; Kapitel: 16 ; 185-193
20.07.2024
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Testing Bulk Compressive Strength of Rocks
NTIS | 1975
Prediction of concrete compressive strength by combined non-destructive methods
| Tema Archiv | 2015