Defects & Quality

Medium Strong Rock Class

medium_strong_rock_class

ISRM rock class having 25–50 MPa compressive strength. In trade it also appears as medium-strong (English).

Also known as

Used with

Strong Rock Class

ISRM rock class having 50–100 MPa compressive strength. In trade it also appears as strong (English).

strong

Very Strong Rock Class

ISRM rock class exceeding 100 MPa compressive strength. In trade it also appears as very strong (English).

very strong

How the trade says it

enEnglish

Sourcing Medium Strong Rock Class?

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