Weak Rock Strength Class

weak_rock_strength_class

ISRM weak-rock class around 25 MPa compressive strength. It is a defect or QC term used when checking stone.

Also known as

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

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

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

Term	Markets	Seen
Weak	—	×2

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