Are you thinking of a new walkway, patio and/or driveway? 
Consider how it will be built, (on the inside). We now build our hardscapes with open graded bases. This method meets or exceeds ICPI standards. It is used on permeable installations and we use it on all installations besides our Gatorbase installs.
By allowing the water to flow through the base rather than being soaked in like a sponge, it greatly minimizes the potential for freeze thaw cycle damage. See more here

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