Stone Dust Under Pavers
At one time it was considered a waste material but it s now being used in agricultural applications to increase soil fertility and change the ph level of the soil.
Stone dust under pavers. Stone dust is widely used as a setting bed for any of the various types of stone pavers flagstone pavers such as bluestone being an example used by homeowners in small projects. Use concrete sand and only 3 4 under the pavers. Also called rock dust stone dust is more prone than sand to settling and drainage problems when used as a base beneath walkway or patio pavers. It s been a few thousand years since the first roads were built but there s still no shortage of opinions about the right way to build them.
Inferiority of stone dust. Avoid stone dust or limestone screenings as these materials usually have too many fines dust that trap water that can cause early failure of the pavers. Stone dust doesn t belong under pavers. Stone dust is a byproduct of crushing stone for other purposes.
Just make sure the base is deep enough and compacted. Stone dust doesn t belong under pavers. The loose sand will also allow the tamping process to even out the top surface of the pavers. Use the correct bedding material.
The sand concrete sand is where the interlock takes place it comes up and fills the joints causing them to lock up. Stone dust will only get hard under the pavers and actually hold water which is another issue.