Table C230.. - Type B Filter Material In addition to the grading requirements, Type B filter material shall have a coefficient Coefficient of of saturated permeability, when compacted to its maximum dry density as Saturated determined by AS1289.5.5.1 and then tested in accordance with Test Permeability Method ASTMD243468, of at least 8 metres per day after three hours of flow. Grading Type B filter material shall not vary from its original grading as a result of compaction Variation processes by more than the following amounts: Table C230.. - Type B Filter Material Variation (c) Type C Filter Material Grading Type C filter material shall be crushed rock complying with the following requirements: Table C230. - Type C Filter Material
Table C230.. - Type B Filter Material In addition to the grading requirements, Type B filter material shall have a coefficient of saturated permeability, when compacted to its maximum dry density as determined by AS1289.5.5.1 and then tested in accordance with Test Method ASTMD243468, of at least 8 metres per day after three hours of flow. Coefficient of Saturated Permeability Type B filter material shall not vary from its original grading as a result of compaction processes by more than the following amounts: Grading Variation Table C230.. - Type B Filter Material Variation (c) Type C Filter Material Type C filter material shall be crushed rock complying with the following requirements: Grading Table C230. - Type C Filter Material
CMDG%20C230%20-%20Subsurface%20Drainage%20-%20Ver%203%20July%202018%20(PH).docx