We present different aggregates that can be used in an interlocking pavement installation.
We recommend a visual of lab testing of the aggregates you wish to use for a project.
Here are the aggregates that can be chosen for an interlocking pavement construction:
- Densely graded stone: ¾ inch angular stone, down the fines.
- Washed concrete sand: Coarse angular sand without fines. It has a good drainage ability.
Here is a cross section of an interlocking concrete pavement that illustrates every component of that system:
Here are different aggregates that can be used in a permeable pavement installation.
The types of aggregates you should keep in mind for a permeable pavement are the following:
- Granite based hard stone. If you can’t find this type of stone, the aggregate you replace it with should be hardness tested.
- 2 to 3-inch clean stone for the subbase
- ¾ inch stone for the base
- #8 stone, ¼-inch clean stone. It is 2 inches thick and less than 5% passing a 200 sieve. It will act as a pre-filtration.
Here is a cross section of a permeable pavement, illustrating all its components in full infiltration conditions:
And partial infiltration conditions:
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