Grinpak 90
Grinpak is an engineered combination of cellular lightweight concrete blocks reinforced with steel, fibres and timber for cost effective and reliable stope support. Solid pack structure eliminates loss of gold fines. Excellent stoping width control.
Timber is dipped in a fire retardant product allowing treatment to penetrate deeper into timber, differentiating from spraying. Avoiding spread of fire underground. Reduces rock burst damage and rock falls.
GRINPAK 90-95
- 1 x Prestressing Plate
- PACK SIZE: 900mm X 900mm X 1.8m
- PRE-LOAD: 100 kN
- DISPLACEMENT: 600 mm
Starting Deformation

600 mm Deformation

