ISSN: 1945-7545
CODEN: GTJODJ
Page Count: 11

Sclerograph Measurements on Rock Materials

Wijk, G
Manager, Atlas Copco MCT Central Laboratory, Stockholm,

Abstract

Theoretical analysis of the sclerograph test for rock materials shows that a considerable and unknown amount of the sclerograph piston's impact energy is converted to internal vibration in the piston after impact. Nevertheless experimental results show that the piston recoil factor κ correlates remarkably well with other, more easily understandable rock strength data, such as the tensile strength index #x03C3;_PLT obtained from the point load test; σ_PLT ⋍ σ_PLT* exp (4_κ) where σ_PLT* ⋍ 1.0 MPa.

Keywords:
rock mechanics, impact tests, wave velocity, testing machines

Paper ID: GTJ10903J
DOI: 10.1520/GTJ10903J
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