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Table 3 Internal angle of friction from shear box tests for synthetic pumice and scoria and Ascension Island ash

From: Investigation of geomechanical properties of tephra relevant to roof loading for application in vulnerability analyses

 

Friction angle (°)

Synthetic pumice

36.5

Synthetic scoria

35.8

Ascension ash

36.4

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Journal of Applied Volcanology

ISSN: 2191-5040

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